{"title":"Two Stroke Performance","description":"\u003cp\u003e\u003cimg class=\"alignnone size-full wp-image-1249\" src=\"https:\/\/rutherfordracing.co.uk\/wp-content\/uploads\/2020\/11\/two-stroke-peformace-logo.png\" alt=\"\" width=\"241\" height=\"31\"\u003e\u003c\/p\u003e\n\u003ch1\u003e\nPerformance Parts and Engine Rebuild Spares\u003cbr\u003e\n\u003c\/h1\u003e\n\u003cp\u003e \u003c\/p\u003e\n","products":[{"product_id":"ktm85sx-and-husky-tc85-2018-power-kit","title":"KTM85SX and Husky TC85 2018 ***POWER KIT***","description":"The 2018 KTM85SX and 2018 Husky TC85 are great bikes but have significantly less top end power than the older models. Although the midrange has increased due to the new powervalve design most skilled riders find the top end runs flat. This TSP POWER KIT is simple to install and will make an immediate difference to power throughout the rev range without risking reliability.\n\n\n\nAll TSP mods are designed and dyno tested in-house at TSP so you can be sure you're getting reliable performance for local conditions.\n\n\n\nThis POWER KIT by TSP includes:\n\n\u003cul\u003e\n\n \u003cli\u003ea custom TSP head insert with corrected squish clearance and improved design for reduced risk of detonation and more power throughout the rev range. This head insert has been designed and tested to work with 98 RON fuel and will also suit higher octane FIM spec fuels.\u003c\/li\u003e\n\n \u003cli\u003ean Athena GET CDI with 2 curves and a bar mounted map switch. One curve is HARD for maximum power throughout the rev range, and the other curve is SOFT for muddy conditions or where traction is limited.\u003c\/li\u003e\n\n\u003c\/ul\u003e\n\nThis kit come in 2 options:\n\n\u003cul\u003e\n\n \u003cli\u003eStandard Cylinder Height... the head insert is designed to work with the stock base gasket thickness and gives a boost to power throughout the rev range. This option is best suited to novice riders or offroad racers looking for maximum midrange.\u003c\/li\u003e\n\n \u003cli\u003eTSP Spec Cylinder Height... the head insert is designed to work with a raised cylinder height and gives maximum mid\/top performance with little or no loss of bottom end. This option is best suited to skilled A or B grade riders. This options includes the required base gaskets to set the correct cylinder height... head gaskets supplied are genuine and you will receive 2 gaskets to use together (KTM RRP on these gaskets is $28.60 each).\u003c\/li\u003e\n\n\u003c\/ul\u003e","brand":"Rutherford Racing","offers":[{"title":"Standard Cylinder Height","offer_id":42374365053003,"sku":"3744","price":412.5,"currency_code":"GBP","in_stock":true},{"title":"TSP Spec Cylinder Height (includes required base gaskets)","offer_id":42374365085771,"sku":"3745","price":444.17,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/KTM85-2018-power-kit.jpg?v=1777684238"},{"product_id":"ktm85sx-and-husky-tc85-2018-power-kit-2","title":"KTM85SX and Husky TC85 2018-on Cylinder Head Insert","description":"You will receive one (1) cylinder head insert for your make\/model.\n\n\n\nThis CNC machined TSP head insert suits KTM85SX and Husky TC85 2018-on models and fits into the stock cylinder head outer part. It makes a huge difference to performance throughout the rev range and is easily one of the best value for money mods for the 85 for MX or offroad racing.\n\n\n\nThis head insert is designed to work with a raised cylinder height and includes the required base gaskets to set the correct cylinder height. It features an improved combustion chamber design that gives more performance throughout the rev range as well as reduced risk of detonation. It\u003cspan style=\"display: inline !important;float: none;background-color: transparent;color: #333333;cursor: text;font-family: Georgia,'Times New Roman','Bitstream Charter',Times,serif;font-size: 16px;font-style: normal;font-variant: normal;font-weight: 400;letter-spacing: normal;text-align: left;text-decoration: none;text-indent: 0px;text-transform: none;white-space: normal\"\u003e has been designed and tested to work with 98 RON fuel.\u003c\/span\u003e\n\n\n\nAll TSP mods are designed and dyno tested in-house at TSP so you can be sure you're getting reliable performance for local conditions.\n\n\n\nWe have sold hundreds of these inserts and have happy customers all over the world using our perforamnce parts on the 2018-on 85 bikes.","brand":"Rutherford Racing","offers":[{"title":"Default Title","offer_id":42374365118539,"sku":"P.I.KT85.18on.16.8H.105BG","price":137.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/IMG_9714_657cef8c-f25b-47d1-ba0e-f2bfe3eee38f.jpg?v=1777684239"},{"product_id":"ktm125sx-and-husky-tc125-2018-cylinder-head-insert","title":"KTM125SX and Husky TC125 2016-2022 Cylinder Head Insert","description":"\u003cp\u003eYou will receive one (1) cylinder head insert for your make\/model.\u003c\/p\u003e\n\n\n\n\u003cp\u003eThis CNC machined TSP head insert suits KTM125SX and Husky TC125 2016-2018 models and fits into the stock cylinder head outer part. It features an improved combustion chamber design that gives more performance from bottom to top as well as reduced risk of detonation. Although it signs off slightly earlier in the overrev it will be easier on hill climbs, easier to lift the front and faster corner to corner due to the increased torque up to 12,000rpm.\u003c\/p\u003e\n\n\n\n\u003cp\u003eThe head insert is designed to work with the stock base gasket thickness and gives a big boost to power throughout the rev range. It has been designed and tested to work with 98 RON fuel and will also suit higher octane FIM spec fuels.\u003c\/p\u003e\n\n\n\n\u003cp\u003eAll TSP mods are designed and dyno tested in-house at TSP so you can be sure you're getting reliable performance for local conditions.\u003c\/p\u003e\n\n\n\n\u003cp\u003eCheck out our listings for POWER KITS which also include an Athena GET ignition for even more power everywhere.\u003c\/p\u003e\n\n\n\n\u003cp\u003eWe also offer full engine builds which make world class power levels.\u003c\/p\u003e\n\n\n\n\u003cp\u003e \u003c\/p\u003e\n\n\n\n\u003cp\u003eDyno graph shows results on a 150... it can be used as an accurate guide for the results expected on a 125 assuming jetting and engine condition are good.\u003c\/p\u003e\n\n\n\n\u003cp\u003e \u003c\/p\u003e","brand":"Rutherford Racing","offers":[{"title":"Default Title","offer_id":42374365151307,"sku":"P.I.KT125.18on.15.0H","price":125.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/IMG_9714_247a8f65-8d4e-4696-b17f-7878c81123b0.jpg?v=1777684240"},{"product_id":"ktm150sx-xc-w-and-husky-tc125-2016-2018-cylinder-head-insert","title":"KTM150SX\/XC-W and Husky TC150 2016-23 Cylinder Head Insert","description":"You will receive one (1) cylinder head insert for your make\/model.\r\n\r\nThis CNC machined TSP head insert suits KTM150SX\/XC-W and Husky TC150 2016-on models and fits into the stock cylinder head outer part. It features an improved combustion chamber design that gives more performance from bottom to top as well as reduced risk of detonation. Although it signs off slightly earlier in the overrev it will be easier on hill climbs, easier to lift the front and faster corner to corner due to the increased torque up to 12,000rpm.\r\n\r\nThe head insert is designed to work with the stock base gasket thickness and gives a big boost to power throughout the rev range. It has been designed and tested to work with 98 RON fuel and will also suit higher octane FIM spec fuels.\r\n\r\nAll TSP mods are designed and dyno tested in-house at TSP so you can be sure you're getting reliable performance for local conditions.\r\n\r\nDyno graph shows actual results on a 150.\r\n\r\n ","brand":"Rutherford Racing","offers":[{"title":"Default Title","offer_id":42374365184075,"sku":"P.I.KT150.1623.15.0H","price":125.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/IMG_9714_b6f52ce9-4535-4879-8025-42e2ffce9090.jpg?v=1785514760"},{"product_id":"tsp-cnc-head-ktm-300-exc-xc-and-husky-300-te-tx-2017-onwards","title":"TSP CNC Head - KTM 300 EXC\/XC and Husky 300 TE\/TX Carby Models 2017 onwards","description":"Select your desired compression ratio from the drop down menu. All designs will work with stock base gaskets and cylinder heights and offer significant improvements over stock heads. This head is the same as our 300 TPI heads, however it comes with a machined aluminium plug to cover the temp sensor hole.\n\n\n\n\u003cstrong\u003eLOW COMPRESSION:\u003c\/strong\u003e Roughly the same compression ratio as stock EXC or TE, much tighter squish clearance and better design than stock, suited to Extreme Enduro, resists overheating very well, pulls from very low rpm smoothly and predictably. Still gives a very noticeable change in performance over stock despite compression ratios being similar.\n\n\n\n\u003cstrong\u003eMEDIUM COMPRESSION (suits 90% of riders):\u003c\/strong\u003e Our standard design, higher compression ratio than stock but still works fine with 95 or 98 RON fuel. Gives a very noticeable increase in power throughout the rev range. Give much smoother power delivery at low\/mid revs. Squish clearance is much tighter than stock. Fuel economy is greatly improved over stock. Recommended for most riders.\n\n\n\n\u003cstrong\u003eHIGH COMPRESSION:\u003c\/strong\u003e Requires 98 RON fuel or higher. Squish clearance is much tighter than stock. Gives maximum bottom\/mid power but less overrev. More aggressive power delivery. Will overheat more easily in tight conditions. Suited to high altitude riding or MX. We do not recommend this design for normal trail riding or enduro racing near sea level. Contact us first if you want more info about this design.\n\n\n\n\u003cstrong\u003eVERY HIGH COMPRESSION:\u003c\/strong\u003e This design is targeted at high elevation riders above 1500m or 4500ft. It will help to make up for the power losses due to thinner air at high elevation. We strongly suggest you do not use this design below 1500m. At these high elevations this head design should give similar results to our Medium or High Comp heads at lower elevations.\n\n\n\nOur new TSP CNC cylinder heads are machined from solid 6061 T6 stock and offer improved performance, reliability and fuel economy. They are the best bolt on mod you can buy for your bike! Our design offers better heat dissipation than many other 2 piece designs due to the large lower section which incorporates the combustion chamber... this allows heat from combustion to disperse over a larger area than other 2 piece designs for improved heat transfer to the coolant.\n\n\n\nThese CNC machined 2 piece heads feature TSP's proven combustion chamber designs and are a MUST HAVE mod for most current model offroad bikes. Our combustion chamber designs have been used by hundreds of happy customers and have been extensively dyno tested' the gains are consistent and include: increased power throughout the rev range (especially bottom\/mid), improved fuel economy, greatly reduced risk of detonation, increased top end life in many models, and much SMOOTHER power delivery.\n\n\n\nThe unique CNC design has been 100% developed, machined and tested in-house at TSP.\n\n\n\nThese CNC heads will bolt onto your standard cylinder and are designed to work with standard base gaskets. If you are unsure of your current base gasket thickness we can advise the correct thickness to achieve the necessary cylinder height and squish clearance.\n\n\n\nWe can also advise baseline jetting specs to go with your new CNC head. The customer takes all responsibility for ensuring that jetting is appropriate for their riding style and conditions","brand":"Rutherford Racing","offers":[{"title":"Low Compression","offer_id":42374365216843,"sku":"P.H.KT300.17on.12.0L","price":235.0,"currency_code":"GBP","in_stock":true},{"title":"High Compression","offer_id":42374365249611,"sku":"P.H.KT300.17on.13.4H","price":235.0,"currency_code":"GBP","in_stock":true},{"title":"Medium Compression","offer_id":42374365282379,"sku":"P.H.KT300.17on.12.7M","price":235.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/IMG_9666-e1595302065800_9751755a-bb7c-471b-91d4-939731850a6e.jpg?v=1785519097"},{"product_id":"tsp-cnc-head-ktm-250-sx-exc-xc-and-husky-250-tc-te-tx-2017-onwards","title":"TSP CNC Head - KTM 250 SX\/EXC\/XC and Husky 250 TC\/TE\/TX Carby Models 2017 onwards","description":"Select your desired compression ratio from the drop down menu. All designs will work with stock base gaskets and cylinder heights and offer significant improvements over stock heads. This head is the same as our 250 TPI heads, however it comes with a machined aluminium plug to cover the temp sensor hole.\r\n\r\n\u003cstrong\u003eMEDIUM COMPRESSION (suits EXC\/XC and TE\/TX models):\u003c\/strong\u003e Higher compression ratio than stock but still works fine with 95 or 98 RON fuel. Gives a very noticeable increase in power throughout the rev range, especially bottom\/mid. Gives much smoother power delivery than stock. Squish clearance is much tighter than stock. Fuel economy is greatly improved over stock.\r\n\r\n\u003cstrong\u003eHIGH COMPRESSION (suits SX and TC models):\u003c\/strong\u003e Requires 98 RON fuel. Squish clearance is much tighter than stock. Gives more power everywhere than the stock SX head with much smoother power delivery.\r\n\r\nOur new TSP CNC cylinder heads are machined from solid 6061 T6 stock and offer improved performance, reliability and fuel economy. They are the best bolt on mod you can buy for your bike! Our design offers better heat dissipation than many other 2 piece designs due to the large lower section which incorporates the combustion chamber' this allows heat from combustion to disperse over a larger area than other 2 piece designs for improved heat transfer to the coolant.\r\n\r\nThese CNC machined 2 piece heads feature TSP's proven combustion chamber designs and are a MUST HAVE mod for most current model offroad bikes. Our combustion chamber designs have been used by hundreds of happy customers and have been extensively dyno tested' the gains are consistent and include: increased power throughout the rev range (especially bottom\/mid), improved fuel economy, greatly reduced risk of detonation, increased top end life in many models, and much SMOOTHER power delivery.\r\n\r\nThe unique CNC design has been 100% developed, machined and tested in-house at TSP.\r\n\r\nThese CNC heads will bolt onto your standard cylinder and are designed to work with standard base gaskets. If you are unsure of your current base gasket thickness we can advise the correct thickness to achieve the necessary cylinder height and squish clearance.\r\n\r\nWe can also advise baseline jetting specs to go with your new CNC head. The customer takes all responsibility for ensuring that jetting is appropriate for their riding style and conditions.","brand":"Rutherford Racing","offers":[{"title":"Low Compression","offer_id":42374365315147,"sku":"P.H.KT250.17on.12.9L","price":235.0,"currency_code":"GBP","in_stock":true},{"title":"High Compression","offer_id":42374365347915,"sku":"P.H.KT250.17on.14.3H","price":235.0,"currency_code":"GBP","in_stock":true},{"title":"Medium Compression","offer_id":42374365380683,"sku":"P.H.KT250.17on.13.6M","price":235.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/KTM300-17-on-Head_349c0626-afae-45b0-a078-7252f0649270.jpg?v=1785517050"},{"product_id":"tpi-transformation-kit-suits-2018-2019-ktm-300tpi-and-husky-te300i","title":"TPI Power Kit - suits 2018-2019 KTM 300TPI and Husky TE300i","description":"This package will transform the power delivery of your 18\/19 300 TPI' it includes the following:\r\n\u003cul\u003e\r\n \t\u003cli\u003ea new 2 piece TSP CNC machined cylinder head in Low, Medium, High or Very High comp. We also offer the options of machining your stock head into the Low or Medium designs. See below for more detailed explanations of each compression ratio.\u003c\/li\u003e\r\n \t\u003cli\u003ereflashing of your STOCK ECU with improved fuel, oil and ignition maps developed by TSP'We modify both Map 1 and Map 2, with a more noticeable difference between the maps compared to the stock maps. Both maps have more oil everywhere compared to stock. Map 1 is the fully tuned map delivering maxium performance. Map 2 has less ignition advance and more fuel than Map 1 and is softer everywhere. Map 2 is the 'safe' map we suggest using for prolonged high speed riding, deep sand, or if you want to temporarily reduce power in very technical terrain.\u003c\/li\u003e\r\n \t\u003cli\u003ea new NGK spark plug, better suited to the improved power the engine makes with this kit\u003c\/li\u003e\r\n \t\u003cli\u003e50mm bolt and spring necessary to do the 'idle screw mod'. Not always necessary to install but we supply it just in case.\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\nThis package makes an huge difference to the 300 TPI and offers the following gains over a stock bike:\r\n\u003cul\u003e\r\n \t\u003cli\u003emuch more torque at low\/mid revs, where you need it most, with a nice increase in power higher up in the rev range as well.\u003c\/li\u003e\r\n \t\u003cli\u003edrastically improved 0-1\/2 throttle performance\u003c\/li\u003e\r\n \t\u003cli\u003emore oil than the stock maps for improved reliability\u003c\/li\u003e\r\n \t\u003cli\u003e2 ignition maps: hard and soft. The stock map switch works like normal to select between the customised maps.\u003c\/li\u003e\r\n \t\u003cli\u003emuch smoother power deliver at part throttle' the part throttle splutter is almost completely gone.\u003c\/li\u003e\r\n \t\u003cli\u003emuch less 'pipe bang'' this is the annoying 'dang, dang, dang' noise the engine makes on deceleration. Its generally harmless but very annoying and makes the stock 18\/19 TPI unpleasant to ride at times.\u003c\/li\u003e\r\n \t\u003cli\u003esafer air\/fuel ratios at high rpm and large throttle openings so the engine is safer during prolonged high speed running\u003c\/li\u003e\r\n \t\u003cli\u003ebetter throttle response\u003c\/li\u003e\r\n \t\u003cli\u003eyou can ride in a higher gear with lower revs in many situations and use the extra low end torque to get you places with less wheel spin and much less clutch work\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\nThere is no change to reliability with this setup' the ignition maps, air fuel ratios and combustion chamber designs are similar to those we have run very successfully for years on modified carb models and the 18\/19 TPI models.\r\n\r\nIn order to change the stock ECU data we have spent hundreds of hours developing our own process for accessing, changing and reloading the ECU data. TSP was the first to develop a tuned package for the TPI bikes and we have years of experience testing and tuning fuel injected 2 strokes prior to the release of the TPIs in 2018.\r\n\r\nAll ECU features work normally, including oil injection, fan and warning lights. There are no issues with hard starting and no need to tune via apps or software' just install and ride!\r\n\r\nWe provide an idle setting bolt that can be installed if you feel the need to change the idle speed or air screw setting after fitting the kit, however the vast majority of bikes will run fine without it.\r\n\r\nThis kit has been developed to work with the stock exhaust and almost makes aftermarket exhaust systems obsolete for the TPI' the head and ECU give a WAY bigger gain in performance than any aftermarket exhaust can offer, and theres no trade off by taking power from one area to improve power in another, as usually happens with pipes.\r\n\r\nWe supply fitting instruction plus recommended settings for the air screw and powervalve preload.\r\n\r\nThis is the ONLY complete solution currently for sale on the market that addresses all the necessary TPI issues' head, ignition and fuel. It is also the MOST COST EFFECTIVE solution by far. All other solutions are either more expensive or only tackle part of the problem. In order to address all the necessary issues using other parts you would need a programmable ECU, an aftermarket head, a new plug and an idle screw' buying all these separately adds up to roughly twice the cost of our package!\r\n\r\nCombustion chamber designs:\r\n\u003cul\u003e\r\n \t\u003cli\u003eLOW COMP ' this head and ECU tune was designed to suit extreme enduro riding, or for riders who are more interested in smoothness over power gains' it offers strong bottom end torque with a very smooth delivery that wont break traction too easily. It enables the rider to use lower revs and less clutch when tackling hard obstacles. The low comp design also offers maximum resistance to overheating in tough situations.\u003c\/li\u003e\r\n \t\u003cli\u003eMEDIUM COMP ' this head and ECU tune suits the majority of trail riders and racers who want better bottom and mid power and a small gain up top as well. The power delivery is much stronger and more tractable than stock and suits a wide range of riding conditions. Suited to 95 or 98 RON fuel (approx 89 or 91 in the USA).\u003c\/li\u003e\r\n \t\u003cli\u003eHIGH COMP ' this head and ECU tune suits riders who want harder hitting power everywhere, especially down low. It completely transforms the TPI into a weapon. Also suited to normal trail riders who live at higher elevation. Requires 98 RON fuel at sea level (approx 91 in the USA). Not suitable for extreme enduro due to the increased tendency to overheat in very tight, technical riding near sea level.\u003c\/li\u003e\r\n \t\u003cli\u003eVERY HIGH COMP ' this head design suits very high elevation riding above 1500m or 4500ft. When used at the appropriate elevation it will give similar results to the Medium or High Compression heads near sea level.\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\nhttps:\/\/www.youtube.com\/watch'v=nLsTroHT1ws\u0026amp;t=342s\r\n\r\n\u003cstrong\u003eHOW TO ORDER:\u003c\/strong\u003e\r\n\u003cul\u003e\r\n \t\u003cli\u003ePurchase the TPI Power Kit by placing an online order, select your desired combustion chamber and payment method\u003c\/li\u003e\r\n \t\u003cli\u003eSend us your stock ECU with a copy of the order confirmation you receive via email\u003c\/li\u003e\r\n \t\u003cli\u003eOnce we receive your ECU we will reflash it and return it with the head, plug and idle bolt.\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n \r\n\r\n\u003cstrong\u003eEuropean orders:\u003c\/strong\u003e\r\n\r\nYou can place your order as above.\r\n\r\nWhen you are ready to ship your ECU to us email us at info@twostrokeperformance.co.uk and we will send you the customs info required and the best carrier to use.","brand":"Rutherford Racing","offers":[{"title":"Low Compression","offer_id":42374365446219,"sku":"TE300iLow","price":433.33,"currency_code":"GBP","in_stock":true},{"title":"Medium Compression","offer_id":42374365478987,"sku":"TE300iMedium","price":433.33,"currency_code":"GBP","in_stock":true},{"title":"High Compression","offer_id":42374365511755,"sku":"TE300iHigh","price":433.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/IMG_9696.jpg?v=1785513655"},{"product_id":"tpi-power-kit-suits-2018-2019-ktm-250tpi-and-husky-te250i","title":"TPI Power Kit - suits 2018-2019 KTM 250TPI and Husky TE250i","description":"This package will completely transform the power delivery of your 18\/19 250 TPI... it includes the following:\n\n\n\n\u003cul\u003e\n\n\n\n \u003cli\u003ea new 2 piece TSP CNC machined cylinder head in Medium or High comp.\u003c\/li\u003e\n\n\n\n \u003cli\u003ereflashing of your STOCK ECU with improved fuel, oil and ignition maps developed by TSP'We modify both Map 1 and Map 2, with a more noticeable difference between the maps compared to the stock maps. Both maps have more oil everywhere compared to stock. Map 1 is the fully tuned map delivering maxium performance. Map 2 has less ignition advance and more fuel than Map 1 and is softer everywhere. Map 2 is the 'safe' map we suggest using for prolonged high speed riding, deep sand, or if you want to temporarily reduce power in very technical terrain.\u003c\/li\u003e\n\n\n\n \u003cli\u003ea new NGK spark plug, better suited to the improved power the engine makes with this kit\u003c\/li\u003e\n\n\n\n \u003cli\u003e50mm bolt and spring necessary to do the 'idle screw mod'. Not always necessary to install but we supply it just in case.\u003c\/li\u003e\n\n\n\n\u003c\/ul\u003e\n\n\n\nThis package makes an astonishing difference to the TPI and offers the following gains over a stock bike:\n\n\n\n\u003cul\u003e\n\n\n\n \u003cli\u003emuch more torque at low\/mid revs, where you need it most, with a nice increase in power higher up in the rev range as well.\u003c\/li\u003e\n\n\n\n \u003cli\u003edrastically improved 0-1\/2 throttle performance\u003c\/li\u003e\n\n\n\n \u003cli\u003emore oil than the stock maps for improved reliability\u003c\/li\u003e\n\n\n\n \u003cli\u003e2 ignition maps: hard and soft. The stock map switch works like normal to select between the customised maps.\u003c\/li\u003e\n\n\n\n \u003cli\u003emuch smoother power deliver at part throttle... the part throttle splutter is almost completely gone.\u003c\/li\u003e\n\n\n\n \u003cli\u003emuch less 'pipe bang'... this is the annoying \"dang, dang, dang\" noise the engine makes on deceleration. Its generally harmless but very annoying and makes some stock TPI bikes unpleasant to ride at times.\u003c\/li\u003e\n\n\n\n \u003cli\u003esafer air\/fuel ratios at high rpm and large throttle openings so the engine is safer during prolonged high speed running\u003c\/li\u003e\n\n\n\n \u003cli\u003ebetter throttle response\u003c\/li\u003e\n\n\n\n \u003cli\u003eyou can ride in a higher gear with lower revs in many situations and use the extra low end torque to get you places with less wheel spin and much less clutch work\u003c\/li\u003e\n\n\n\n\u003c\/ul\u003e\n\n\n\nThis package addresses the main complaints we receive about the TPI bikes... that they have weak bottom end power and splutter badly at part throttle. Many customers say that their new TPI bikes are much weaker than their old carb model at low revs and low throttle and this is 100% correct... the stock TPI ignition curve and fuel maps lead to very soft low rpm power, lots of spluttering and then a big hit in power higher up in the rev range. This makes the TPI difficult to ride in many situations. Our setup makes the TPI more powerful, yet much more forgiving as the power delivery is much smoother and more predictable.\n\n\n\n\n\n\n\nThere is no change to reliability with this setup... the ignition maps, air fuel ratios and combustion chamber designs are similar to those we have run very successfully for years on modified carb models... after all the TPI engine is basically identical to the previous carb engine, except for the fuel injection system... as a result we know exactly what it can or cant handle in terms of performance mods.\n\n\n\n\n\n\n\nIn order to change the stock ECU data we have spent hundreds of hours developing our own process for accessing, changing and reloading the ECU data. TSP was the first to develop a tuned package for the TPI bikes and we have years of experience testing and tuning fuel injected 2 strokes prior to the release of the TPIs in 2018.\n\n\n\n\n\n\n\nAll ECU features work normally, including oil injection, fan and warning lights. There are no issues with hard starting and no need to tune via apps or software... just install and ride!\n\n\n\n\n\n\n\nWe provide an idle setting bolt that can be installed if you feel the need to change the idle speed or air screw setting after fitting the kit, however the vast majority of bikes will run fine without it.\n\n\n\n\n\n\n\nThis kit has been developed to work with the stock exhaust and almost makes aftermarket exhaust systems obsolete for the TPI... the head and ECU give a WAY bigger gain in performance than any aftermarket exhaust can offer, and theres no trade off by taking power from one area to improve power in another, as usually happens with pipes.\n\n\n\n\n\n\n\nAll our TPI packages are designed to work with premium pump fuel of 98 RON (approx 91-92 pump fuel in the USA), assuming you choose an appropriate compression ratio for your elevation.\n\n\n\n\n\n\n\nThis is the ONLY complete solution currently for sale on the market that addresses all the necessary TPI issues... head, ignition and fuel. It is also the MOST COST EFFECTIVE solution by far. All other solutions are either more expensive or only tackle part of the problem. In order to address all the necessary issues using other parts you would need a programmable ECU, an aftermarket head, a new plug and an idle screw... buying all these separately adds up to roughly twice the cost of our package!\n\n\n\n\n\n\n\n \n\n\n\n\n\n\n\nThe 250 TPI kit is available in the following combustion chamber designs:\n\n\n\n\u003cul\u003e\n\n\n\n \u003cli\u003eMEDIUM COMP ' this head and ECU tune suits trail riders and racers who want better bottom and mid power and a small gain up top as well. Much tighter squish clearance than stock. The power delivery is much stronger and more tractable than stock and suits a wide range of riding conditions. Suited to 95 or 98 RON fuel. This setup maintains a great spread of power and still revs out freely up top.\u003c\/li\u003e\n\n\n\n \u003cli\u003eHIGH COMP ' Requires 98 RON fuel (91-92 in the USA). Squish clearance is much tighter than stock. Gives maximum bottom\/mid power but less overrev than the medium comp head. More aggressive power delivery down low and tractors up hill climbs with ease. Makes your 250 feel like a 300 down low but the bike overall still feels light and more flickable like a 250 does. This is the setup we run on our 2020 250TPI and its the most versatile bike we've ever owned! At high elevation above 1500m will run similar to the Medium Comp design at sea level.\u003c\/li\u003e\n\n\n\n\u003c\/ul\u003e\n\n\n\n \n\n\n\n\n\n\n\nhttps:\/\/www.youtube.com\/watch'v=nLsTroHT1ws\u0026amp;t=342s\n\n\n\n\n\n\n\n \n\n\n\n\n\n\n\n\u003cstrong\u003eHOW TO ORDER:\u003c\/strong\u003e\n\n\n\n\n\n\n\n\u003cul\u003e\n\n\n\n \u003cli\u003ePurchase the TPI Power Kit by placing an online order, select your desired combustion chamber and payment method\u003c\/li\u003e\n\n\n\n \u003cli\u003eSend us your stock ECU with a copy of the order confirmation you receive via email\u003c\/li\u003e\n\n\n\n \u003cli\u003eOnce we receive your ECU we will reflash it and return it with the head, plug and idle bolt.\u003c\/li\u003e\n\n\n\n\u003c\/ul\u003e\n\n\n\n\n\n \n\n\n\n\n\n\n\n\u003cstrong\u003eEuropean orders:\u003c\/strong\u003e\n\n\n\n\n\n\n\nYou can place your order as above.\n\n\n\n\n\n\n\nWhen you are ready to ship your ECU to us email us at info@twostrokeperformance.co.uk and we will send you the customs info required and the best carrier to use. \n\n\n\n","brand":"Rutherford Racing","offers":[{"title":"Medium and High Package Deal","offer_id":42374365544523,"sku":"8230","price":475.0,"currency_code":"GBP","in_stock":true},{"title":"Medium Compression","offer_id":42374365577291,"sku":"8178","price":415.83,"currency_code":"GBP","in_stock":true},{"title":"High Compression","offer_id":42374365610059,"sku":"4373","price":415.83,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/IMG_9696_a01ae209-66e1-404a-ac3f-abe584ec9c39.jpg?v=1777684248"},{"product_id":"tpi-power-kit-suits-2020-ktm-300tpi-and-husky-te300i","title":"TPI Power Kit - suits 2020 and on KTM 300TPI, GasGas EC 300 and Husky TE300i","description":"This package will transform the power delivery of your 2020 TPI... it includes the following:\r\n\u003cul\u003e\r\n \t\u003cli\u003ea new 2 piece TSP CNC machined cylinder head in Low, Medium, High or Very High comp. We also offer the options of machining your stock head into the Low or Medium designs. See below for more detailed explanations of each compression ratio.\u003c\/li\u003e\r\n \t\u003cli\u003ereflashing of your STOCK ECU with improved fuel, oil and ignition maps developed by TSP'We modify both Map 1 and Map 2, with a more noticeable difference between the maps compared to the stock maps. Both maps have more oil everywhere compared to stock. Map 1 is the fully tuned map delivering maximum performance. Map 2 has less ignition advance and more fuel than Map 1 and is softer everywhere. Map 2 is the 'safe' map we suggest using for prolonged high speed riding, deep sand, or if you want to temporarily reduce power in very technical terrain.\u003c\/li\u003e\r\n \t\u003cli\u003ea new NGK spark plug, better suited to the improved power the engine makes with this kit\u003c\/li\u003e\r\n \t\u003cli\u003e50mm bolt and spring necessary to do the 'idle screw mod'. Not always necessary to install but we supply it just in case.\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\nThis package makes an astonishing difference to the TPI and offers the following gains over a stock bike:\r\n\u003cul\u003e\r\n \t\u003cli\u003emuch more torque at low\/mid revs, where you need it most, with a nice increase in power higher up in the rev range as well.\u003c\/li\u003e\r\n \t\u003cli\u003edrastically improved 0-1\/2 throttle performance\u003c\/li\u003e\r\n \t\u003cli\u003emore oil than the stock maps for improved reliability' the stock 20\/21 maps give significantly less oil than the previous year models.\u003c\/li\u003e\r\n \t\u003cli\u003e2 ignition maps: hard and soft. The stock map switch works like normal to select between the customised maps.\u003c\/li\u003e\r\n \t\u003cli\u003emuch smoother, crisper power deliver at part throttle.\u003c\/li\u003e\r\n \t\u003cli\u003emuch less 'pipe bang'' this is the annoying 'dang, dang, dang' noise the engine makes on deceleration. Its generally harmless but very annoying and makes some stock TPI bikes unpleasant to ride at times.\u003c\/li\u003e\r\n \t\u003cli\u003esafer air\/fuel ratios at high rpm and large throttle openings so the engine is safer during prolonged high speed running\u003c\/li\u003e\r\n \t\u003cli\u003ebetter throttle response\u003c\/li\u003e\r\n \t\u003cli\u003eyou can ride in a higher gear with lower revs in many situations and use the extra low end torque to get you places with less wheel spin and much less clutch work\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\nThere is no change to reliability with this setup' the ignition maps, air fuel ratios and combustion chamber designs are similar to those we have run very successfully for years on modified carb models' after all the TPI engine is basically identical to the previous carb engine, except for the fuel injection system' as a result we know exactly what it can or cant handle in terms of performance mods.\r\n\r\nIn order to change the stock ECU data we have spent hundreds of hours developing our own process for accessing, changing and reloading the ECU data. TSP was the first to develop a tuned package for the TPI bikes and we have years of experience testing and tuning fuel injected 2 strokes prior to the release of the TPIs in 2018.\r\n\r\nAll ECU features work normally, including oil injection, fan and warning lights. There are no issues with hard starting and no need to tune via apps or software... just install and ride!\r\n\r\nWe provide an idle setting bolt that can be installed if you feel the need to change the idle speed or air screw setting after fitting the kit, however the vast majority of bikes will run fine without it.\r\n\r\nThis kit has been developed to work with the stock exhaust and almost makes aftermarket exhaust systems obsolete for the TPI... the head and ECU give a WAY bigger gain in performance than any aftermarket exhaust can offer, and theres no trade off by taking power from one area to improve power in another, as usually happens with pipes.\r\n\r\nWe supply fitting instruction plus recommended settings for the air screw and powervalve preload.\r\n\r\nThis is the ONLY complete solution currently for sale on the market that addresses all the necessary TPI issues... head, ignition and fuel. It is also the MOST COST EFFECTIVE solution by far. All other solutions are either more expensive or only tackle part of the problem. In order to address all the necessary issues using other parts you would need a programmable ECU, an aftermarket head, a new plug and an idle screw... buying all these separately adds up to roughly twice the cost of our package!\r\n\r\n \r\n\r\nCombustion chamber designs:\r\n\u003cul\u003e\r\n \t\u003cli\u003eLOW COMP - this head and ECU tune was designed to suit extreme enduro riding or for riders who are more interested in smoothness over power gains... it offers strong bottom end torque with a very smooth delivery that wont break traction too easily. It enables the rider to use lower revs and less clutch when tackling hard obstacles. The low comp design also offers maximum resistance to overheating in tough situations.\u003c\/li\u003e\r\n \t\u003cli\u003eMEDIUM COMP - this head and ECU tune suits the majority of trail riders and racers who want better bottom and mid power and a small gain up top as well. The power delivery is much stronger and more tractable than stock and suits a wide range of riding conditions. Suited to 95 or 98 RON fuel (approx 89 or 91 in the USA).\u003c\/li\u003e\r\n \t\u003cli\u003eHIGH COMP - this head and ECU tune suits riders who want harder hitting power everywhere, especially down low. It completely transforms the TPI into a weapon. Also suited to normal trail riders who live at higher elevation. Best with 98 RON fuel at sea level (approx 91 in the USA). Not suitable for extreme enduro due to the increased tendency to overheat in very tight, technical riding near sea level.\u003c\/li\u003e\r\n \t\u003cli\u003eVERY HIGH COMP - this head design suits very high elevation riding above 1500m or 4500ft. When used at the appropriate elevation it will give similar results to the Medium or High Compression heads near sea level.\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\nhttps:\/\/www.youtube.com\/watch'v=nLsTroHT1ws\u0026amp;t=342s\r\n\r\n \r\n\r\n\u003cstrong\u003eHOW TO ORDER:\u003c\/strong\u003e\r\n\u003cul\u003e\r\n \t\u003cli\u003ePurchase the TPI Power Kit by placing an online order, select your desired combustion chamber and payment method\u003c\/li\u003e\r\n \t\u003cli\u003eSend us your stock ECU with a copy of the order confirmation you receive via email\u003c\/li\u003e\r\n \t\u003cli\u003eOnce we receive your ECU we will reflash it and return it with the head, plug and idle bolt.\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n \r\n\r\n\u003cstrong\u003eEuropean orders:\u003c\/strong\u003e\r\n\r\nYou can place your order as above.\r\n\r\nWhen you are ready to ship your ECU to us email us at info@twostrokeperformance.co.uk and we will send you the customs info required and the best carrier to use.","brand":"Rutherford Racing","offers":[{"title":"High Compression","offer_id":42374365675595,"sku":"4521","price":479.19,"currency_code":"GBP","in_stock":true},{"title":"Medium Compression","offer_id":42374365708363,"sku":"4522","price":479.19,"currency_code":"GBP","in_stock":true},{"title":"Low Compression","offer_id":42374365741131,"sku":"4523","price":479.19,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/IMG_9696_76c7b86e-7465-4738-8d7a-5ffb72ebdea2.jpg?v=1785513664"},{"product_id":"tpi-power-kit-suits-2020-ktm-250tpi-and-husky-te250i","title":"TPI Power Kit - suits 2020 and on KTM 250TPI, GasGas EC 250 and Husky TE250i","description":"This package will transform the power delivery of your TPI... it includes the following:\r\n\u003cul\u003e\r\n \t\u003cli\u003ea new 2 piece TSP CNC machined cylinder head in Medium or High comp.\u003c\/li\u003e\r\n \t\u003cli\u003ereflashing of your STOCK ECU with improved fuel, oil and ignition maps developed by TSP'We modify both Map 1 and Map 2, with a more noticeable difference between the maps compared to the stock maps. Both maps have more oil everywhere compared to stock. Map 1 is the fully tuned map delivering maximum performance. Map 2 has less ignition advance and more fuel than Map 1 and is softer everywhere. Map 2 is the 'safe' map we suggest using for prolonged high speed riding, deep sand, or if you want to temporarily reduce power in very technical terrain.\u003c\/li\u003e\r\n \t\u003cli\u003ea new NGK spark plug, better suited to the improved power the engine makes with this kit\u003c\/li\u003e\r\n \t\u003cli\u003e50mm bolt and spring necessary to do the 'idle screw mod'. Not always necessary to install but we supply it just in case.\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\nThis package makes an astonishing difference to the TPI and offers the following gains over a stock bike:\r\n\u003cul\u003e\r\n \t\u003cli\u003emuch more torque at low\/mid revs, where you need it most, with a nice increase in power higher up in the rev range as well.\u003c\/li\u003e\r\n \t\u003cli\u003edrastically improved 0-1\/2 throttle performance\u003c\/li\u003e\r\n \t\u003cli\u003emore oil than the stock maps for improved reliability... the stock 20\/21 maps give significantly less oil than the previous year models.\u003c\/li\u003e\r\n \t\u003cli\u003e2 ignition maps: hard and soft. The stock map switch works like normal to select between the customised maps.\u003c\/li\u003e\r\n \t\u003cli\u003emuch smoother, crisper power deliver at part throttle.\u003c\/li\u003e\r\n \t\u003cli\u003emuch less 'pipe bang'... this is the annoying \"dang, dang, dang\" noise the engine makes on deceleration. Its generally harmless but very annoying and makes some stock TPI bikes unpleasant to ride at times.\u003c\/li\u003e\r\n \t\u003cli\u003esafer air\/fuel ratios at high rpm and large throttle openings so the engine is safer during prolonged high speed running\u003c\/li\u003e\r\n \t\u003cli\u003ebetter throttle response\u003c\/li\u003e\r\n \t\u003cli\u003eyou can ride in a higher gear with lower revs in many situations and use the extra low end torque to get you places with less wheel spin and much less clutch work\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\nThere is no change to reliability with this setup... the ignition maps, air fuel ratios and combustion chamber designs are similar to those we have run very successfully for years on modified carb models... after all the TPI engine is basically identical to the previous carb engine, except for the fuel injection system... as a result we know exactly what it can or cant handle in terms of performance mods.\r\n\r\nIn order to change the stock ECU data we have spent hundreds of hours developing our own process for accessing, changing and reloading the ECU data. TSP was the first to develop a tuned package for the TPI bikes and we have years of experience testing and tuning fuel injected 2 strokes prior to the release of the TPIs in 2018.\r\n\r\nAll ECU features work normally, including oil injection, fan and warning lights. There are no issues with hard starting and no need to tune via apps or software... just install and ride!\r\n\r\nWe provide an idle setting bolt that can be installed if you feel the need to change the idle speed or air screw setting after fitting the kit, however the vast majority of bikes will run fine without it.\r\n\r\nThis kit has been developed to work with the stock exhaust and almost makes aftermarket exhaust systems obsolete for the TPI... the head and ECU give a WAY bigger gain in performance than any aftermarket exhaust can offer, and theres no trade off by taking power from one area to improve power in another, as usually happens with pipes.\r\n\r\nWe supply fitting instruction plus recommended settings for the air screw and powervavle preload.\r\n\r\nThis is the ONLY complete solution currently for sale on the market that addresses all the necessary TPI issues... head, ignition and fuel. It is also the MOST COST EFFECTIVE solution by far. All other solutions are either more expensive or only tackle part of the problem. In order to address all the necessary issues using other parts you would need a programmable ECU, an aftermarket head, a new plug and an idle screw... buying all these separately adds up to roughly twice the cost of our package!\r\n\r\n \r\n\r\nThe 250 TPI kit is available in the following combustion chamber designs:\r\n\u003cul\u003e\r\n \t\u003cli\u003eMEDIUM COMP - this head and ECU tune suits the majority of trail riders and racers who want better bottom and mid power and a small gain up top as well. Much tighter squish clearance than stock. The power delivery is much stronger and more tractable than stock and suits a wide range of riding conditions. Suited to 95 or 98 RON fuel. This setup maintains a great spread of power and still revs out freely up top.\u003c\/li\u003e\r\n \t\u003cli\u003eHIGH COMP - Requires 98 RON fuel (91-92 in the USA). Squish clearance is much tighter than stock. Gives maximum bottom\/mid power but less overrev than the medium comp head. More aggressive power delivery down low and tractors up hill climbs with ease. Makes your 250 feel like a 300 down low but the bike overall still feels light and more flickable like a 250 does. This is the setup we run on our 2020 250TPI and its the most versatile bike we've ever owned! At high elevation above 1500m will run similar to the Medium Comp design at sea level.\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n \r\n\r\nhttps:\/\/www.youtube.com\/watch'v=nLsTroHT1ws\u0026amp;t=342s\r\n\r\n\u003cstrong\u003eHOW TO ORDER:\u003c\/strong\u003e\r\n\u003cul\u003e\r\n \t\u003cli\u003ePurchase the TPI Power Kit by placing an online order, select your desired combustion chamber and payment method\u003c\/li\u003e\r\n \t\u003cli\u003eSend us your stock ECU with a copy of the order confirmation you receive via email\u003c\/li\u003e\r\n \t\u003cli\u003eOnce we receive your ECU we will reflash it and return it with the head, plug and idle bolt.\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n \r\n\r\n\u003cstrong\u003eEuropean orders:\u003c\/strong\u003e\r\n\r\nYou can place your order as above.\r\n\r\nWhen you are ready to ship your ECU to us email us at info@twostrokeperformance.co.uk and we will send you the customs info required and the best carrier to use.","brand":"Rutherford Racing","offers":[{"title":"High Compression","offer_id":42374365806667,"sku":"8181","price":479.19,"currency_code":"GBP","in_stock":true},{"title":"Medium Compression","offer_id":42374365839435,"sku":"8182","price":479.19,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/IMG_9696_3d5314ce-13d4-4573-96fb-8c4c0e045762.jpg?v=1785514232"},{"product_id":"tpi-power-kit-suits-2020-ktm-150tpi-and-husky-te150i","title":"TPI Power Kit - suits 2020 and on KTM 150TPI and Husky TE150i","description":"This package will transform the power delivery of your TPI... it includes the following:\r\n\u003cul\u003e\r\n \t\u003cli\u003ea new TSP CNC machined cylinder head insert. We currently offer a single compression ratio whcih is higher than stock but still very safe for 98 RON pump fuel (approx 91-92 in the USA).\u003c\/li\u003e\r\n \t\u003cli\u003ereflashing of your STOCK ECU with improved fuel, oil and ignition maps developed by TSP'We modify both Map 1 and Map 2, with a more noticeable difference between the maps compared to the stock maps. Both maps have more oil everywhere compared to stock. Map 1 is the fully tuned map delivering maxium performance. Map 2 has less ignition advance and more fuel than Map 1 and is softer everywhere. Map 2 is the 'safe' map we suggest using for prolonged high speed riding, deep sand, or if you want to temporarily reduce power in very technical terrain.\u003c\/li\u003e\r\n \t\u003cli\u003e50mm bolt and spring necessary to do the 'idle screw mod'. Not always necessary to install but we supply it just in case.\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\nThis package makes a huge difference to the 150TPI and offers the following gains over a stock bike:\r\n\u003cul\u003e\r\n \t\u003cli\u003emuch more torque at low\/mid revs, where you need it most, with a nice increase in power higher up in the rev range as well.\u003c\/li\u003e\r\n \t\u003cli\u003edrastically improved 0-1\/2 throttle performance\u003c\/li\u003e\r\n \t\u003cli\u003emore oil than the stock maps for improved reliability... the stock 20 model maps gave a very low oil volume. This was increased on the 21 stock maps due to a high number of top end seizures in the early models. Our oil maps offer a greater volume than the stock 21 maps.\u003c\/li\u003e\r\n \t\u003cli\u003e2 ignition maps: hard and soft. The stock map switch works like normal to select between the customised maps.\u003c\/li\u003e\r\n \t\u003cli\u003emuch smoother power deliver at part throttle' the part throttle splutter is almost completely gone.\u003c\/li\u003e\r\n \t\u003cli\u003emuch less 'pipe bang'' this is the annoying 'dang, dang, dang' noise the engine makes on deceleration. Its generally harmless but very annoying and makes the stock 18\/19 TPI unpleasant to ride at times.\u003c\/li\u003e\r\n \t\u003cli\u003esafer air\/fuel ratios at high rpm and large throttle openings so the engine is safer during prolonged high speed running\u003c\/li\u003e\r\n \t\u003cli\u003ebetter throttle response\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n*** NOTE: For maximum reliability we strongly recommend updating your 2020 model forged piston to the new design cast piston which is now stock on the 2021 model. The 20 model forged piston was a bad design, and along with the very low oil volume on the stock 20 maps it was very prone to top end failures. We will offer cast 150 pistons on our website very soon! When used in conjunction with our updated ECU mapping and head insert your 150 TPI will have much more power and be MORE reliable than the stock 20 models.\r\n\r\nOur 150TPI kit increases power throughout the rev range, making approximately 2hp more up top and 5 hp more through the midrange compared to a stock bike, making it a weapon offroad.\r\n\r\nIn order to change the stock ECU data we have spent hundreds of hours developing our own process for accessing, changing and reloading the ECU data. TSP was the first to develop a tuned package for the TPI bikes and we have years of experience testing and tuning fuel injected 2 strokes prior to the release of the TPIs in 2018.\r\n\r\nThe stock ECU will still connect to the KTM\/Husky diagnostic tool and the dealer can still perform all normal service tasks... in fact, they wont be aware that the ignition and fuel data has been modified. All other ECU features work normally, including oil injection, fan and warning lights. There are no issues with hard starting and no need to tune via apps or software... just install and ride!\r\n\r\nWe provide an idle setting bolt that can be installed if you feel the need to change the idle speed or air screw setting after fitting the kit, however the vast majority of bikes will run fine without it.\r\n\r\nThis kit has been developed to work with the stock exhaust and almost makes aftermarket exhaust systems obsolete for the TPI... the head and ECU give a WAY bigger gain in performance than any aftermarket exhaust can offer, and theres no trade off by taking power from one area to improve power in another, as usually happens with pipes.\r\n\r\nWe supply fitting instruction plus recommended settings for the air screw and powervalve preload.\r\n\r\nThis is the ONLY complete solution currently for sale on the market that addresses all the necessary TPI issues... head, ignition and fuel. It is also the MOST COST EFFECTIVE solution by far. All other solutions are either more expensive or only tackle part of the problem. In order to address all the necessary issues using other parts you would need a programmable ECU, an aftermarket head, a new plug and an idle screw... buying all these separately adds up to roughly twice the cost of our package!\r\n\r\n \r\n\r\n\u003cstrong\u003eHOW TO ORDER:\u003c\/strong\u003e\r\n\u003cul\u003e\r\n \t\u003cli\u003ePurchase the TPI Power Kit by placing an online order, select your desired combustion chamber and payment method\u003c\/li\u003e\r\n \t\u003cli\u003eSend us your stock ECU with a copy of the order confirmation you receive via email\u003c\/li\u003e\r\n \t\u003cli\u003eOnce we receive your ECU we will reflash it and return it with the head, plug and idle bolt.\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n \r\n\r\n\u003cstrong\u003eEuropean orders:\u003c\/strong\u003e\r\n\r\nYou can place your order as above.\r\n\r\nWhen you are ready to ship your ECU to us email us at info@twostrokeperformance.co.uk and we will send you the customs info required and the best carrier to use.","brand":"Rutherford Racing","offers":[{"title":"TSP 2 piece CNC Machined Billet Head","offer_id":42374365872203,"sku":"9291","price":454.17,"currency_code":"GBP","in_stock":true},{"title":"TSP Insert Only","offer_id":42374365904971,"sku":"9292","price":354.17,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/power-kit.jpg?v=1777684279"},{"product_id":"ezy-clips","title":"EZY clips","description":"Sold in pairs\r\n\r\nFits:\r\n\r\nO.E.M. \u0026amp; Vertex pistons only\r\n\r\nKTM 1998-on 250\/300\/360\/380 ALL\r\n\r\nHusaberg TE\/TC 250\/300 ALL\r\n\r\nHusqvarna '14-on TE\/TC\/TX 250\/300\r\n\r\nBeta 250\/300 RR ALL\r\n\r\nGasGas `21 and on EC\/EX250\/300","brand":"Rutherford Racing","offers":[{"title":"250-300","offer_id":42374366134347,"sku":"ezy250300","price":4.17,"currency_code":"GBP","in_stock":false},{"title":"125-150","offer_id":42374366167115,"sku":"ezy125150","price":4.17,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/KT54330074000.jpg?v=1785516284"},{"product_id":"ngk-bpr8eix-iridium-ix-spark-plug","title":"NGK BPR8EIX - Iridium IX Spark Plug","description":"NGK BPR8EIX (6684) - Iridium IX Spark Plug \/ Sparkplug - Taper Cut Ground Electrode\r\n\r\nGeneral Details:\r\n\r\nSpanner Size 20,8 mm\r\n\r\nOuter thread [mm] 14,0\r\n\r\nThread Length [mm] 19,0\r\n\r\nSpark Plug Unscrewable SAE connector\r\n\r\nSpark Position [mm] 3,0\r\n\r\nSpark Plug Iridium Middle Electrode\r\n\r\nSpark Plug 1 - Earthed Electrode\r\n\r\nSpark Plug interference Suppression 5 kOhm\r\n\r\nSpark Plug with gasket seat\r\n\r\nDesigned specifically for the performance enthusiast Iridium IX offers extreme ignitability, improved throttle response and superior anti fouling.\r\n\r\nNGK is the brand leader in the UK spark plug market and are the world's biggest supplier to many major car manufacturers. Each and every one of their products are designed to meet the most rigorous standards and are the professionals' choice because of their quality and technical excellence. Their plugs can be found in use by teams in F1, WRC and MotoGP. Put simply, NGK genuine spark plugs are the workhorse at the heart of smooth-running engines around the world.\r\n\r\nThe NGK Iridium IX Spark Plugs utilise a 0.6mm laser welded fine iridium tip which ensures high durability and a consistently stable spark along with a tapered ground electrode which minimizes electrical quenching effect. The longer insulator nose prevents fouling, the corrugated ribs on the insulator prevent flashover and a triple gasket seal eliminates combustion gas leakage.","brand":"Rutherford Racing","offers":[{"title":"Default Title","offer_id":42374366199883,"sku":"8217","price":11.08,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/bpr8eix_ngk-iridium-spark-plug_551442b9-946d-426e-aac8-62e579a8ae8d.jpg?v=1785515071"},{"product_id":"tsp-ecu-flash","title":"TSP ECU Flash TPI","description":"","brand":"Rutherford Racing","offers":[{"title":"Default Title","offer_id":42374366232651,"sku":"8234","price":220.83,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/KTM-ECU.jpg?v=1777684286"},{"product_id":"ktm-group-ecu-55641031000","title":"Genuine KTM group TPI ECU (55641031000)","description":"","brand":"Rutherford Racing","offers":[{"title":"Default Title","offer_id":42374366265419,"sku":"55641031000","price":374.7,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/KTM-ECU_15bb6085-31b5-4cc8-acbf-17b5f6018bbc.jpg?v=1785512826"},{"product_id":"idle-bolt-kit","title":"TPI Idle bolt kit - RR","description":"Idle bolt (screw) kit for TPI bikes, as used in the the TSP power kit","brand":"Rutherford Racing","offers":[{"title":"Default Title","offer_id":42374366298187,"sku":"12410069","price":10.83,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/JPEG_20250410_152657_3505796545558405309-scaled_2ea4bd98-e6dc-4a44-b821-dccc6891f1d0.jpg?v=1785515510"},{"product_id":"ngk-bpr9eix-iridium-ix-spark-plug","title":"NGK BPR9EIX - Iridium IX Spark Plug","description":"NGK BPR9EIX (6853) - Iridium IX Spark Plug \/ Sparkplug - Taper Cut Ground Electrode\r\n\r\nGeneral Details:\r\n\r\nSpanner Size 20,8 mm\r\n\r\nOuter thread [mm] 14,0\r\n\r\nThread Length [mm] 19,0\r\n\r\nSpark Plug Unscrewable SAE connector\r\n\r\nSpark Position [mm] 3,0\r\n\r\nSpark Plug Iridium Middle Electrode\r\n\r\nSpark Plug 1 - Earthed Electrode\r\n\r\nSpark Plug interference Suppression 5 kOhm\r\n\r\nSpark Plug with gasket seat\r\n\r\nAdditional Images:\r\n\r\nClick for larger picture\r\n\r\nClick for larger picture\r\n\r\nDesigned specifically for the performance enthusiast Iridium IX offers extreme ignitability, improved throttle response and superior anti fouling.\r\n\r\nNGK is the brand leader in the UK spark plug market and are the world's biggest supplier to many major car manufacturers. Each and every one of their products are designed to meet the most rigorous standards and are the professionals' choice because of their quality and technical excellence. Their plugs can be found in use by teams in F1, WRC and MotoGP. Put simply, NGK genuine spark plugs are the workhorse at the heart of smooth-running engines around the world.\r\n\r\nThe NGK Iridium IX Spark Plugs utilise a 0.6mm laser welded fine iridium tip which ensures high durability and a consistently stable spark along with a tapered ground electrode which minimizes electrical quenching effect. The longer insulator nose prevents fouling, the corrugated ribs on the insulator prevent flashover and a triple gasket seal eliminates combustion gas leakage.","brand":"Rutherford Racing","offers":[{"title":"Default Title","offer_id":42374366330955,"sku":"8276","price":11.55,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/bpr8eix_ngk-iridium-spark-plug_bc7d8142-a08a-487e-91e3-68475cc3d599.jpg?v=1785516388"},{"product_id":"ktm-300-tpi-2018-on-vertex-top-end-piston-kit","title":"KTM 300 TPI 2018 on Vertex Top End Piston Kit","description":" \r\n\r\n \r\n\r\nTop-end piston set including needle roller bearings, top end gasket set, suitable for KTM \/ GasGas \/ Husky TPI 300 2018-on.\r\n\r\n\u003cspan style=\"font-size: 16px\"\u003eMeasuring the bore is the best way to choose, but typically if piston is changed around 80hrs and the bikes hasn't seen lots of dusty conditions it will be as follows\r\n80hrs A size\r\n160hrs B size\r\n240hrs B size and so on, as the side of the bore sees very little wear we dont usually reconmend going over a B size, unless the Bore is taken out to the next size.\u003c\/span\u003e\r\n\r\nOem supplier vertex piston.\r\n\r\nAll pistons are heat treated with a T-5 hardening and tempering cycle\r\n\r\nAll piston heads are provided with a high-tech molybdenum disulfite coating in order to shorten the running-in period and extend the life of the pistons.\r\n\r\nCast piston sets are\r\n\r\nCast aluminum alloys (not forged) with 18% silicone, which result in an extremely light but very strong piston. Replica pistons and all rings are original spare parts","brand":"Rutherford Racing","offers":[{"title":"A (for new barrels and first piston change)","offer_id":42374366396491,"sku":"TK42442A","price":147.5,"currency_code":"GBP","in_stock":true},{"title":"B (for 2nd piston change and subsequent)","offer_id":42374366429259,"sku":"TK42442B","price":147.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/20211111_171610-scaled_2f0df489-a6cb-403b-b5c9-66955d871c6f.jpg?v=1785514995"},{"product_id":"tsp-ecu-check","title":"TSP ECU Check","description":"\u003cp\u003eCheck of ECU mapping\u003c\/p\u003e","brand":"Rutherford Racing","offers":[{"title":"Default Title","offer_id":42374366494795,"sku":"8926","price":33.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/TSP-Power-Kit-KTM_Husky-250.jpg?v=1777684295"},{"product_id":"cylinder-repair","title":"Cylinder Repair","description":"\u003cp\u003eA lot of our customers want to know what the steps are in our repair process. (Click here to go to a photo gallery)\u003c\/p\u003e\n\n\u003cp\u003eThe first thing we need to do is to give the cylinder a reference number and log it into our computer system. That makes it possible for us to keep track of where a cylinder is and what we need to do with it next. We also write the same number on any pistons or studs etc so that we can keep track of them too.\u003c\/p\u003e\n\n\u003cp\u003eMost cylinders that come to us have had a hard, dirty life.\u003c\/p\u003e\n\n\u003cp\u003eBefore we start any serious work on a cylinder, we must clean it thoroughly so that we can REALLY inspect it for damage. We use a variety of cleaners and bead blasting techniques to clean cylinders.\u003c\/p\u003e\n\n\u003cp\u003eIf cylinders come in for repair with any studs, power-valves, dowels etc, they must be removed (or masked) before the cylinder can be stripped. Any parts that are removed are identified with the cylinder number and forwarded to the Shipping Department so that we can include them with the cylinder when it is despatched.\u003c\/p\u003e\n\n\u003cp\u003eOnce the cylinders are cleaned and all the non-aluminium parts etc have been removed or masked, we must remove the old coating. This is normally done by immersion in an acid solution specially selected to avoid damaging the aluminium itself.\u003c\/p\u003e\n\n\u003cp\u003eAfter the cylinders are stripped, they must be sorted to go to the correct next operation. The three common choices are:\u003c\/p\u003e\n\n\u003cp\u003e' Send for welding\u003c\/p\u003e\n\n\u003cp\u003e' Send for boring\u003c\/p\u003e\n\n\u003cp\u003e' Send for honing\u003c\/p\u003e\n\n\u003cp\u003eIf a cylinder is cracked, scored or damaged any other way, we can usually repair it by welding and re-machining. The welding process adds aluminium to the damage and builds up any scores. After welding, cylinders must be bored, honed to pre-plate size and the ports must be reshaped and chamfered before plating.\u003c\/p\u003e\n\n\u003cp\u003eBefore we plate a cylinder, we want it to be a specific diameter. The boring operations are not accurate enough for this task, so we treat those as 'roughing' processes and we hone the cylinders to our required pre-plate size. After the honing operation, the cylinders will be very oily. Oil is never allowed near the plating chemicals, and so the cylinders must be thoroughly cleaned before plating. We use a combination of solvents and detergents to clean all traces of oil from the part.\u003c\/p\u003e\n\n\u003cp\u003eNow that the bores have been made straight, round and the right size, we can apply our new electroplated coating. The cylinders are treated in a variety of chemicals to condition the surface before having anodes installed and connected, then the plating process is started. The plating time and current are calculated by computer and, after the time has passed, the cylinders are rinsed, dried and bead blasted to really clean them up and make them look like new again.\u003c\/p\u003e\n\n\u003cp\u003eOnce plated and cleaned on the outside, cylinders face a multi-stage honing process. 'Pre-honing' comes first and the main purpose of this operation is remove the extra plating build-up that occurs at port edges etc as a normal part of the electroplating operation. This helps to protect the shape of our very expensive diamond honing tools so that they keep producing accurate bores for as long as possible without unnecessary maintenance. \"Rough honing' is maybe a misleading name for the second stage. In our honing process, we use three progressively finer grades of diamond abrasives. Our \"roughing diamonds\" remove material quickly but leave a surface finish that is too coarse to be used in an engine cylinder. This stage still produces straight, round bores but we stop cutting a little before we reach our intended finished size. After the bore is 'rough honed', the cylinder goes to a chamfering station where all port-edges are ground by hand, and then the 'head-face' is checked for flatness on a surface plate. This work may leave small burrs that could damage an engine if they aren't removed. The small burrs that might be around the ports after the chamfering operations are removed during finish honing. This step also produces the correct surface finish and the precise bore sizing.\u003c\/p\u003e\n\n\u003cp\u003eOnce the cylinder has been cleaned, we must next inspect it visually to confirm that everything we have done is to the correct standard. If everything is ok, it goes to the Shipping Department where we carry out a final check that the correct work has been done, that it's to the correct standard, that any pistons, studs etc are being returned with the cylinder, and that the completed package is well protected against damage during delivery.\u003c\/p\u003e","brand":"Rutherford Racing","offers":[{"title":"Replate","offer_id":42374366756939,"sku":"8958","price":160.0,"currency_code":"GBP","in_stock":true},{"title":"Repair \u0026 Replate","offer_id":42374366789707,"sku":"8956","price":200.0,"currency_code":"GBP","in_stock":true},{"title":"Bore Out \u0026 Replate","offer_id":42374366822475,"sku":"8954","price":195.0,"currency_code":"GBP","in_stock":true},{"title":"Rebuild Skirt \u0026 Replate","offer_id":42374366855243,"sku":"8955","price":210.0,"currency_code":"GBP","in_stock":true},{"title":"Repair Detonation \u0026 Replate","offer_id":42374366888011,"sku":"8957","price":210.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/20211203_104517-scaled.jpg?v=1777684299"},{"product_id":"cylinder-rebuild-bundle","title":"250 Cylinder Rebuild Bundle","description":"\u003cp\u003eChoose\u003c\/p\u003e \n\n\n\n\u003cp\u003e1. What type of cylinder repair you need (replete is most common but call if unsure)\u003c\/p\u003e\n\n\u003cp\u003e2. Choose an 'A' piston kit for your bike\u003c\/p\u003e\n\n\u003cp\u003e3. If you need us to remove and install the power valves purchase this option also.\u003c\/p\u003e","brand":"Rutherford Racing","offers":[{"title":"Default Title","offer_id":42374366920779,"sku":"8961","price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/20211203_104512-scaled.jpg?v=1777684300"},{"product_id":"300-cylinder-repair-rebuild-bundle","title":"300 Cylinder Repair \u0026 Rebuild Bundle","description":"\u003cp\u003eChoose\u003c\/p\u003e\n\n\n\n\u003cp\u003e1. What type of cylinder repair you need (replete is most common but call if unsure)\u003c\/p\u003e\n\n\u003cp\u003e2. Choose an 'A' piston kit for your bike\u003c\/p\u003e\n\n\u003cp\u003e3. If you need us to remove and install the power valves purchase this option also.\u003c\/p\u003e","brand":"Rutherford Racing","offers":[{"title":"Default Title","offer_id":42374367412299,"sku":"9083","price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/20211203_104512-scaled_07bbf1b2-99b0-4a65-a2a7-901558891151.jpg?v=1777684310"},{"product_id":"150-cylinder-repair-rebuild-bundle","title":"150 Cylinder Repair \u0026 Rebuild Bundle","description":"\u003cp\u003eChoose\u003c\/p\u003e\n\n\n\n\u003cp\u003e1. What type of cylinder repair you need (replete is most common but call if unsure)\u003c\/p\u003e\n\n\u003cp\u003e2. Choose an 'A' piston kit for your bike\u003c\/p\u003e\n\n\u003cp\u003e3. If you need us to remove and install the power valves purchase this option also.\u003c\/p\u003e","brand":"Rutherford Racing","offers":[{"title":"Default Title","offer_id":42374367445067,"sku":"9086","price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/20211203_104512-scaled_07568801-d941-4adf-99eb-ba853076c540.jpg?v=1777684311"},{"product_id":"ktm-150-cast-genuine-piston-kit-51730007000-includes-ez-clips","title":"KTM 150 Cast Genuine Piston Kit 51730007000","description":"Top-end piston set including EZ clips suitable for KTM \/ Husky TPI 150 2020-on.\r\n\r\nA size is recommended for new cylinders\r\n\r\nB size is recommended for first and subsequent piston changes.\r\n\r\nUpgrade over the forged pistons spec'd for the 2020 bikes.\r\n\r\nThese are not made by Vertex so must use Genuine KTM. The Vertex piston is forged and much higher seize risk.","brand":"Rutherford Racing","offers":[{"title":"A (for new barrels and first piston change)","offer_id":42374367477835,"sku":"51730007000 1","price":85.83,"currency_code":"GBP","in_stock":true},{"title":"B (for 2nd piston change and subsequent)","offer_id":42374367510603,"sku":"51730007000 11","price":85.83,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/20211215_185751-scaled_723c7ba3-ac83-4269-a737-02fe77086e08.jpg?v=1785514808"},{"product_id":"ktm-group-250-to-300-conversion-kit-55730905144","title":"KTM Group 250 TPI to 300 TPI conversion kit (55730905144)","description":"Currently discontinued at KTM but we have our other conversion kit here which uses a mixture of genuine components and aftermarket - https:\/\/rutherfordracing.co.uk\/product\/ktm-group-250-tpi-to-300-tpi-conversion-kit-inc-ecu-flash\/\r\n\r\n \r\n\r\nAll required parts for converting your 250 TPI to a 300 TPI. (Doesn't include PV covers pictured but yours will fit if 2020 on 250, for 18\/19 250 give us a call)\r\n\r\n ","brand":"Rutherford Racing","offers":[{"title":"Default Title","offer_id":42374367543371,"sku":"9101","price":725.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/pho_nmon_55730905144_300_factory_kit__sall__awsg__v1_30c7013a-9bb4-4a0c-952b-760c1ff34bb7.jpg?v=1785495528"},{"product_id":"old-style-head-two-piece-billet-head-insert-base","title":"Old Style Head ' Two Piece Billet Head (Insert) base","description":"\u003cp\u003eBase of head with combustion chamber in different compression ratios, for old style head.\u003c\/p\u003e","brand":"Rutherford Racing","offers":[{"title":"250 \/ High Compression","offer_id":42374367576139,"sku":"9135","price":116.67,"currency_code":"GBP","in_stock":true},{"title":"300 \/ High Compression","offer_id":42374367608907,"sku":"9136","price":116.67,"currency_code":"GBP","in_stock":true},{"title":"300 \/ Low Compression","offer_id":42374367641675,"sku":"9138","price":116.67,"currency_code":"GBP","in_stock":true},{"title":"250 \/ Medium Compression","offer_id":42374367674443,"sku":"9139","price":116.67,"currency_code":"GBP","in_stock":true},{"title":"300 \/ Medium Compression","offer_id":42374367707211,"sku":"9140","price":116.67,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/Head-2-piece-o-ring-2.jpg?v=1777684314"},{"product_id":"ktm-group-map-switch-51539974200","title":"KTM Group Map Switch (51539974200)","description":"Map switch for brembo master cylinders (Normally KTM bikes only)","brand":"Rutherford Racing","offers":[{"title":"Default Title","offer_id":42374367739979,"sku":"51539974200","price":65.83,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/KTM-PP-51539974200-Ignition-curve-switch_b892bfe7-cb22-4e69-92c0-60ed0dfeb4d0.png?v=1785514730"},{"product_id":"ngk-bpr8es-3923","title":"NGK BPR8ES (3923)","description":"\u003ch2\u003eDescription:\u003c\/h2\u003e\n\n\u003csmall\u003eNGK BPR8ES (3923) - Standard Spark Plug \/ Sparkplug - Projected Centre Electrode\u003c\/small\u003e\n\n\n\n\u003cb\u003eGeneral Details:\u003c\/b\u003e\n\n\u003ctable\u003e\n\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eSpanner Size\u003c\/td\u003e\n\n\u003ctd\u003e20,8 mm\u003c\/td\u003e\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eOuter thread [mm]\u003c\/td\u003e\n\n\u003ctd\u003e14,0\u003c\/td\u003e\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eThread Length [mm]\u003c\/td\u003e\n\n\u003ctd\u003e19,0\u003c\/td\u003e\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eSpark Plug\u003c\/td\u003e\n\n\u003ctd\u003eUnscrewable SAE connector\u003c\/td\u003e\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eSpark Position [mm]\u003c\/td\u003e\n\n\u003ctd\u003e3,0\u003c\/td\u003e\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eSpark Plug\u003c\/td\u003e\n\n\u003ctd\u003eNickel Middle Electrode\u003c\/td\u003e\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eSpark Plug\u003c\/td\u003e\n\n\u003ctd\u003e1 - Earthed Electrode\u003c\/td\u003e\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eSpark Plug\u003c\/td\u003e\n\n\u003ctd\u003einterference Suppression 5 kOhm\u003c\/td\u003e\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eSpark Plug\u003c\/td\u003e\n\n\u003ctd\u003ewith gasket seat\u003c\/td\u003e\n\n\u003c\/tr\u003e\n\n\u003c\/tbody\u003e\n\n\u003c\/table\u003e\n\nNGK: the world's leading pioneers of OEM quality spark plug technology for decades.\n\n\n\nNGK is the brand leader in the UK spark plug market and are the world's biggest supplier to many major car manufacturers. Each and every one of their products are designed to meet the most rigorous standards and are the professionals' choice because of their quality and technical excellence. Their plugs can be found in use by teams in F1, WRC and MotoGP. Put simply, NGK genuine spark plugs are the workhorse at the heart of smooth-running engines around the world.\n\n\n\nThe NGK Standard Spark Plug is constructed from durable material that is corrosion and abrasion resistant. The spark plug insulators are made of 99 percent pure alumina silicate, allowing for longer insulator noses for reduced fouling. This spark plug features a triple gasket sealing process that eliminates fuel leakage. It also includes a solid copper core that provides superior heat dissipation and conductivity. This spark plug has resistor that is produced with a glass and carbon mixture, which is fired to ensure superior performance and durability. It has corrugated ribs that prevent flashover and cold rolled threads to inhibit damage to the cylinder head.","brand":"Rutherford Racing","offers":[{"title":"Default Title","offer_id":42374367772747,"sku":"9189","price":3.75,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/20211115_214654-scaled_963cd6e3-6c8c-4388-8a60-7694f8df77de.jpg?v=1785516472"},{"product_id":"ignition-map-switch-ktm-husqvarna-husaberg-gasgas","title":"Ignition Map Switch KTM\/Husqvarna\/Husaberg\/GasGas","description":"The Ignition Map Switch allows access to the built-in ignition mapping feature of your KTM\/Husqvarna\/Husaberg\/GasGas. A simple 'plug-n-play' install plugs right into your bike and allows you to switch between both maps with a push of a button.\r\n\r\n\u003cstrong\u003eFits:\u003c\/strong\u003e\r\n\r\n`07-22 KTM 125\/144\/150\/250 SX\r\n\r\n`07-10 KTM 250 SXF\r\n\r\n`07-12 KTM 450\/505 SXF\r\n\r\n`08-11 KTM 450\/505 XCF\r\n\r\n`08-22 KTM 200\/250\/300 XC, XC-W\/EXC\/6Days\/tpi\r\n\r\n`08-11 KTM 450\/530 XCR-W, EXC-R\r\n\r\n`11-14 Husaberg TE 250\/300\r\n\r\n`14-22 Husqvarna TE\/TC\/TX 125\/250\/300\/i\r\n\r\n`21-22 MC125\/250, EC\/EX 250\/300","brand":"Rutherford Racing","offers":[{"title":"Default Title","offer_id":42374368264267,"sku":"26-029","price":33.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/20220201_225824-scaled_553c741c-9926-47d0-aa7b-4dcc81c14d5c.jpg?v=1785514806"},{"product_id":"ktm-125-150-small-end-bearing-1998-to-current","title":"KTM 125 \/ 150 Small End Bearing 1998 to Current","description":"\u003cspan style=\"font-size: 16px\"\u003ePROX 21.3206, 09263-15040 Piston Pin Small End Bearing. Made In Japan\u003c\/span\u003e","brand":"Rutherford Racing","offers":[{"title":"Default Title","offer_id":42374368755787,"sku":"9779","price":8.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/Screenshot-2022-03-03-130243_5518306c-9c09-485b-b8b6-cd324ac21158.jpg?v=1785514825"},{"product_id":"ktm-husky-gasgas-flywheel-puller","title":"KTM\/Husky\/GasGas Flywheel Puller","description":"\u003cp\u003eMade by Venhill Engineering\u003c\/p\u003e\n\n\n\n\u003cp\u003eFits KTM group 2t bikes\u003c\/p\u003e","brand":"Rutherford Racing","offers":[{"title":"Default Title","offer_id":42374368788555,"sku":"VT65","price":13.75,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/vt65_l.jpg?v=1777684352"},{"product_id":"mikuni-tmx-jet-block-gasket-kit","title":"Mikuni TMX Jet Block Gasket Kit","description":"Mikuni TMX carburetor ' This kit contains the jet block gasket, with torx bit for removal, float valve O-ring and spare O-ring. Replaces failed jet block gasket, and fuel needle seat O-ring. Both parts fix fuel flow issues.\n\n\n\nFits:\n\n\n\n- 2017 300 EXC\n\n\n\n- 2017-2019 300 XC\n\n\n\n- 2018 300 XC-W\n\n\n\n- 2017-current 250 SX\n\n\n\n- 2017-2019 250 XC\n\n\n\n- 2017 250 EXC\n\n\n\n- 2017-2018 250 XC-W\n\n\n\n- 2017-current 150 SX\n\n\n\n- 2018-2019 150 XC-W\n\n\n\n- 2017-2019 125 XC-W\n\n\n\n- 2017-2019 125 XC-W.","brand":"Rutherford Racing","offers":[{"title":"Default Title","offer_id":42374368886859,"sku":"JDMK05","price":16.67,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/s-l500_d277cf28-3417-4437-ada3-ee0a460080d9.jpg?v=1785518887"},{"product_id":"tsp-billet-head-yamaha-yz250-and-yz250x-1999-on","title":"TSP Billet Head ' Yamaha YZ250 and YZ250X 1999-on","description":"Must do mod for the YZ 250, much better rideability and power everywhere over stock. Watch the video below for all the upgrades that make these bikes go really well.\r\n\r\nSelect your desired compression ratio from the drop down menu. All designs will work with stock base gaskets and cylinder heights and offer significant improvements over stock heads.\r\n\r\n\u003cstrong\u003eLOW COMPRESSION:'\u003c\/strong\u003eThis Low comp design is the same comp ratio as the stock 250X model head but with a much better design. It gives much better bottom\/mid and much better part throttle response. It is the design we normally suggest for the X model at sea level.\r\n\r\n\u003cstrong\u003eMEDIUM COMPRESSION:'\u003c\/strong\u003eThis Med design is the same as we have been selling for the standard MX model for years. It is actually lower compression than stock but gives much better throttle response and smoother, crisper power delivery. It is suited the the standard YZ250 model at sea level and for high level MX where the engine is revved hard.\r\n\r\n\u003cstrong\u003eHIGH COMPRESSION:'\u003c\/strong\u003eThis new design is roughly the same compression ratio as the stock YZ250 head but with a much better design. It gives much more bottom\/mid power than stock, plus higher peak power. It doesn't rev out as far as the Medium design. It is best suited to trail-riding, off-road racing and MX where the rider wants max bottom\/mid.\r\n\r\nOur new TSP Billet cylinder heads are machined from solid 6061 T6 stock and offer improved performance, reliability and fuel economy. They are the best bolt on mod you can buy for your bike! Our design offers better heat dissipation than many other 2 piece designs due to the large lower section which incorporates the combustion chamber' this allows heat from combustion to disperse over a larger area than other 2 piece designs for improved heat transfer to the coolant.\r\n\r\nThese Billet machined 2 piece heads feature TSP's proven combustion chamber designs and are a MUST HAVE mod for most current model offroad bikes. Our combustion chamber designs have been used by hundreds of happy customers and have been extensively dyno tested' the gains are consistent and include: increased power throughout the rev range (especially bottom\/mid), improved fuel economy, greatly reduced risk of detonation, increased top end life in many models, and much SMOOTHER power delivery.\r\n\r\nThe unique Billet design has been 100% developed, machined and tested in-house at TSP.\r\n\r\nThese Billet heads will bolt onto your standard cylinder and are designed to work with standard base gaskets. If you are unsure of your current base gasket thickness we can advise the correct thickness to achieve the necessary cylinder height and squish clearance.\r\n\r\nWe can also advise baseline jetting specs to go with your new Billet head. The customer takes all responsibility for ensuring that jetting is appropriate for their riding style and conditions.\r\n\r\n \r\n\r\n[embed]https:\/\/www.youtube.com\/watch'v=GXiEZe3JXaw[\/embed]","brand":"Rutherford Racing","offers":[{"title":"High Compression","offer_id":42374368919627,"sku":"P.H.YA250.99on.15.5H","price":235.0,"currency_code":"GBP","in_stock":true},{"title":"Medium Compression","offer_id":42374368952395,"sku":"P.H.YA250.99on.14.8M","price":235.0,"currency_code":"GBP","in_stock":true},{"title":"Low Compression","offer_id":42374368985163,"sku":"P.H.YA250.99on.14.1L","price":235.0,"currency_code":"GBP","in_stock":true},{"title":"Low and Medium Package Deal","offer_id":42374369017931,"sku":"10197","price":235.0,"currency_code":"GBP","in_stock":true},{"title":"Medium and High Package Deal","offer_id":42374369050699,"sku":"10196","price":235.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/YZ250-HEAD.jpg?v=1785517190"},{"product_id":"tsp-billet-head-yamaha-yz125-2005-2021-yz125x-2020-2022","title":"TSP Billet Head ' Yamaha YZ125 2005-2021 \u0026 YZ125X 2005-on","description":"Must do mod for the YZ125 makes a great little motor pull better from the bottom all the way through making it easier to ride for all abilities.\r\n\r\nThis head suits the models listed below:\r\n\r\nYZ125 2005-2021 ' See the listing for our 2022 model.\r\n\r\nYZ125X 2020-2022\r\n\r\nChoose your desired compression ratio from the drop down list.\r\n\r\n\u003cstrong\u003eMedium Compression: \u003c\/strong\u003eThis design offers a similar compression ratio to the stock head, but with a much better design. Squish clearance is tighter than stock and the design is much more detonation resistant than the stock head. It offers improved power throughout the rev range and makes a great bike even better. It is best suited to high level MX riding or very fast riders who like to rev the engine hard.\r\n\r\n\u003cstrong\u003eHigh Compression: \u003c\/strong\u003eThis design is slightly higher compression than the stock head but still safe for 98 RON pump fuel with appropriate jetting. It offers improved bottom\/mid power over the Mid\/High design and is best suited to trail riding, offroad racing or MX riders who want max midrange pull. It is also recommended for the YZ125X model and gives very linear, strong power delivery when the standard YZ125 model powervalve spring is used (we can supply this if necessary).\r\n\r\nOur new TSP Billet cylinder heads are machined from solid 6061 T6 stock and offer improved performance, reliability and fuel economy. They are the best bolt on mod you can buy for your bike! Our design offers better heat dissipation than many other 2 piece designs due to the large lower section which incorporates the combustion chamber' this allows heat from combustion to disperse over a larger area than other 2 piece designs for improved heat transfer to the coolant.\r\n\r\nThese Billet machined 2 piece heads feature TSP's proven combustion chamber designs and are a MUST HAVE mod for most current model offroad bikes. Our combustion chamber designs have been used by hundreds of happy customers and have been extensively dyno tested' the gains are consistent and include: increased power throughout the rev range (especially bottom\/mid), improved fuel economy, greatly reduced risk of detonation, increased top end life in many models, and much SMOOTHER power delivery.\r\n\r\nThe unique Billet design has been 100% developed, machined and tested in-house at TSP.\r\n\r\nThese Billet heads will bolt onto your standard cylinder and are designed to work with standard base gaskets. If you are unsure of your current base gasket thickness we can advise the correct thickness to achieve the necessary cylinder height and squish clearance.\r\n\r\nWe can also advise baseline jetting specs to go with your new Billet head. The customer takes all responsibility for ensuring that jetting is appropriate for their riding style and conditions.\r\n\r\n\u003chr\u003e\r\n\r\nBelow is a video with this head with our TSP ignition and scalvini pipe for the YZ125:\r\n\r\n \r\n\r\n[embed]https:\/\/www.youtube.com\/watch'v=Hq7BONrG1LE[\/embed]","brand":"Rutherford Racing","offers":[{"title":"High Compression","offer_id":42374369083467,"sku":"P.H.YA125.0521.15.6H","price":220.0,"currency_code":"GBP","in_stock":true},{"title":"Medium Compression","offer_id":42374369116235,"sku":"P.H.YA125.0521.14.8M","price":220.0,"currency_code":"GBP","in_stock":true},{"title":"Medium and High Package Deal","offer_id":42374369149003,"sku":"10204","price":295.83,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/YZ125-HEAD.jpg?v=1785514874"},{"product_id":"sherco-300-se-power-kit-suits-2018-on-models","title":"Sherco 300 SE Power Kit ' suits 2018-on Models","description":"This package will transform the power delivery of your Sherco 300, it will suit the following models:\n\n\n\nSherco 300 SE Factory Models 2018-on\n\n\n\nSherco 300 SE Racing Models 2019-on\n\n\n\n\u003chr\u003e\n\n\n\nThe kit includes the following:\n\n\u003cul\u003e\n\n \t\u003cli\u003eA new 2 piece TSP Billet machined cylinder head with a replaceable combustion chamber insert in Low, Medium, or High Comp. See below for more detailed explanations of each compression ratio.\u003c\/li\u003e\n\n \t\u003cli\u003eReflashing of your STOCK ECU with improved ignition and power valve maps developed by TSP\u003c\/li\u003e\n\n \t\u003cli\u003eWe modify both Map 1 and Map 2, with a more noticeable difference between the maps compared to the stock maps.' Map 1 is the fully tuned map delivering maximum performance. Map 2 has a softer power delivery for technical riding or very slippery conditions.\u003c\/li\u003e\n\n \t\u003cli\u003eA new NGK spark plug, better suited to the improved power the engine makes with this kit\u003c\/li\u003e\n\n \t\u003cli\u003eA new carby needle which provides much better fueling at part throttle than any of the needles in the stock spares kit. We will also provide a starting guide for the main jet and pilot jet. The original spares kit should contain the necessary main and pilot jets required to jet your bike to suit the TSP Power Kit. If you don't have the original jet kit and need main and pilot jets then just ask and we can add them to your order.\u003c\/li\u003e\n\n\u003c\/ul\u003e\n\nThis package makes a huge difference to the Sherco 300 and offers the following gains over a stock bike:\n\n\u003cul\u003e\n\n \t\u003cli\u003eMuch more torque at low\/mid revs, where you need it most.\u003c\/li\u003e\n\n \t\u003cli\u003eDrastically improved 0-1\/2 throttle performance.\u003c\/li\u003e\n\n \t\u003cli\u003e2 ignition maps: hard and soft. The stock map switch works like normal to select between the customised maps.\u003c\/li\u003e\n\n \t\u003cli\u003eMuch smoother, crisper power deliver which is easier to get to the ground.\u003c\/li\u003e\n\n \t\u003cli\u003eMuch less 'pipe bang'' this is the annoying 'dang, dang, dang' noise the engine makes on deceleration. Its generally harmless but very annoying and makes some stock bikes unpleasant to ride at times.\u003c\/li\u003e\n\n \t\u003cli\u003eBetter throttle response.\u003c\/li\u003e\n\n \t\u003cli\u003eBetter fuel economy.\u003c\/li\u003e\n\n \t\u003cli\u003eMore peak power and overrev.\u003c\/li\u003e\n\n \t\u003cli\u003eYou can ride in a higher gear with lower revs in many situations and use the extra low end torque to get you places with less wheel spin and much less clutch work.\u003c\/li\u003e\n\n\u003c\/ul\u003e\n\nThis package has been tested and raced by some of the best riders in the world and the feedback has been excellent. Everyone from factory level riders to weekend trail riders have reported a significant increase in performance and rideability.\n\n\n\nThere is no change to reliability with this setup' the ignition maps, air fuel ratios and combustion chamber designs are similar to those we have run very successfully for years on modified carb models, as a result we know exactly what it can or cant handle in terms of performance mods.\n\n\n\nIn order to change the stock ECU data we have spent hundreds of hours developing our own process for accessing, changing and reloading the ECU data. TSP was the first to develop a tuned package for the TPI bikes and now we are the first to develop a package for the the Sherco's as well.\n\n\n\nAll ECU features work normally after the reflash.' There are no issues with hard starting and no need to tune via apps or software' just install and ride!\n\n\n\nThe head and ECU re-flash give a much bigger gain in performance than any aftermarket exhaust can offer, and there's no trade off by taking power from one area to improve power in another, as usually happens with pipes and some other bolt on parts.\n\n\n\nIf ordering the additional insert, please include which compression type you'd like in the order notes. These are normally $169.95, but only $99.95 if bought at the same time as the TSP Package. The new style of TSP head makes swapping of different compression heads a breeze. The additional insert means that if you planned to ride higher elevation, extreme enduro or even deep sand riding, you can have a spare combustion chamber to switch before the ride.\n\n\u003ch3\u003eCombustion chamber designs:\u003c\/h3\u003e\n\n\u003cstrong\u003eLOW COMPRESSION\u003c\/strong\u003e'' This head was designed to suit extreme enduro riding or for riders who are more interested in smoothness over power gain. It offers stronger bottom end torque than stock with a very smooth delivery that wont break traction too easily. It enables the rider to use lower revs and less clutch when tackling hard obstacles. The low comp design also offers maximum resistance to overheating in tough situations.\n\n\n\n\u003cstrong\u003eMEDIUM COMPRESSION\u003c\/strong\u003e'' This head' suits the majority of trail riders and racers who want better bottom and mid power and a gain up top as well. The power delivery is much stronger and more tractable than stock and suits a wide range of riding conditions. Suited to 95 or 98 RON fuel (approx 89 or 91 in the USA).\n\n\n\n\u003cstrong\u003eHIGH COMPRESSION\u003c\/strong\u003e'' This head suits riders who want harder hitting power everywhere, especially down low, and are happy to sacrifice some overrev to achieve this. It completely transforms the bike into a weapon, but can be a handful in some situations at sea level. It can also be used at higher elevation (above 1000m) to achieve a similar power delivery to the medium compression head at sea level. Must use with 98 RON fuel at sea level (approx 91 in the USA). We don't recommend using this design for extreme enduro due to the increased tendency to overheat in very tight, technical riding near sea level, or for high revving applications like desert racing or supermoto' best to use the low or med designs for those applications.\n\n\n\n\u003cstrong\u003eNew Sherco 300 instructions:\u003c\/strong\u003e\n\n\n\nWhen fitting the TSP Sherco 300 Head,'\u003cstrong\u003eyou must'\u003c\/strong\u003eensure that you have a 0.00mm to -0.10mm deck height. This may be achieved by using either a 0.50mm or a 1.00mm base gasket (\u003cstrong\u003eboth are supplied\u003c\/strong\u003e). The best way to check this is to put a ruler for reference flat across the top of the cylinder, and when rotating the engine to top dead centre, the middle flat part of the piston should touch the ruler or come within -0.10mm.'\u003cstrong\u003eYou should not have a positive deck height.'\u003c\/strong\u003eSome of the Sherco models that come out with slightly different cylinder heights so this needs to be checked.\n\n\u003cdiv class=\"fluid-width-video-wrapper\"\u003e\u003c\/div\u003e\n\n\u003cstrong\u003eHOW TO ORDER:\u003c\/strong\u003e\n\n\u003cul\u003e\n\n \t\u003cli\u003ePurchase the Power Kit by placing an online order, select your desired combustion chamber and payment method\u003c\/li\u003e\n\n \t\u003cli\u003eSend us your stock ECU with a copy of the order confirmation you receive via email\u003c\/li\u003e\n\n \t\u003cli\u003eOnce we receive your ECU we will reflash it and return it with the head \u0026amp; Spark Plug\u003c\/li\u003e\n\n\u003c\/ul\u003e\n\nRead our FAQ for other enquires and questions you may have.","brand":"Rutherford Racing","offers":[{"title":"Low and Medium Package Deal","offer_id":42374369181771,"sku":"10239","price":537.5,"currency_code":"GBP","in_stock":true},{"title":"Low Compression (recommended for extreme enduro)","offer_id":42374369214539,"sku":"10240","price":479.17,"currency_code":"GBP","in_stock":true},{"title":"Medium Compression (standard design, best overall performance)","offer_id":42374369247307,"sku":"10241","price":479.17,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/Sherco-300-Power-kit-v2.jpg?v=1785485347"},{"product_id":"tsp-cnc-head-ktm-150-sx-xc-and-husky-150-tx-tc-2016-2022-top-cap-only-carburetor","title":"TSP CNC Head - KTM 150 SX\/XC and Husky 150 TX\/TC 2016-2023 Top Cap Only (Carburetor)","description":"\u003cp\u003eThis TSP CNC Head will give a very noticeable boost to performance across the rev range, especially through the bottom end and midrange. This result in much better pull out of corners and faster lap times. For trail\/enduro riding it will make lifting the front wheel and climbing hills much easier. It is designed to work with the stock cylinder height and stock base gasket thickness.\u003c\/p\u003e\n\n\n\n\u003cp\u003eOur new TSP CNC cylinder heads are machined from solid 6061 T6 stock and offer improved performance, reliability and fuel economy. They are the best bolt on mod you can buy for your bike! Our design offers better heat dissipation than many other 2 piece designs due to the large lower section which incorporates the combustion chamber... this allows heat from combustion to disperse over a larger area than other 2 piece designs for improved heat transfer to the coolant.\u003c\/p\u003e\n\n\n\n\u003cp\u003eThese CNC machined 2 piece heads feature TSP's proven combustion chamber designs and are a MUST HAVE mod for most current model offroad bikes. Our combustion chamber designs have been used by hundreds of happy customers and have been extensively dyno tested' the gains are consistent and include: increased power throughout the rev range (especially bottom\/mid), improved fuel economy, greatly reduced risk of detonation, increased top end life in many models, and much SMOOTHER power delivery.\u003c\/p\u003e\n\n\n\n\u003cp\u003eThe unique CNC design has been 100% developed, machined and tested in-house at TSP.\u003c\/p\u003e\n\n\n\n\u003cp\u003eThese CNC heads will bolt onto your standard cylinder and are designed to work with standard base gaskets. If you are unsure of your current base gasket thickness we can advise the correct thickness to achieve the necessary cylinder height and squish clearance.\u003c\/p\u003e\n\n\n\n\u003cp\u003eWe can also advise baseline jetting specs to go with your new CNC head. The customer takes all responsibility for ensuring that jetting is appropriate for their riding style and conditions.\u003c\/p\u003e","brand":"Rutherford Racing","offers":[{"title":"Default Title","offer_id":42374369378379,"sku":"10286","price":108.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/KTM125-150-HEAD.jpg?v=1777684363"},{"product_id":"rr-flywheel-weight-ktm-husky-250-300-2017-to-2024-exc-te-tpi","title":"Flywheel Weight 24on KTM Husky TBI 250 \/ 300 (GasGas 21on) Rieju Mr300i","description":"Flywheel weight developed with the Jarvis Race team, handmade right here in Wales.\r\n\r\nKTM Husky 2024 on TBI 250 \/ 300\r\n\r\nGasGas 250\/300 2021 on\r\n\r\nRieju Mr300i 2026on\r\n\r\nIn low traction conditions a flywheel weight can assist the rider in making the most of the available engine power by giving more control \/ not excessively breaking traction or 'spinning up'.\r\n\r\nFlywheel weights will not add any torque or do anything other than moderate the speed that the engine 'spins up'.\r\n\r\nThis is the same flywheel weight that we have developed in our racing program which gives the best balance between traction and not making the engine feel too lazy and slow in response.\r\n\r\nWe are choosing not to publish the actual weight as there has been some expense in the development which we'd like our customers to enjoy exclusively. We are happy to supply specific weights if needed.\r\n\r\nIf you don't have a flywheel puller you can get one \u003ca href=\"https:\/\/rutherfordracing.co.uk\/product\/ktm-husky-gasgas-flywheel-puller\/\"\u003ehere.\u003c\/a\u003e (not necessary to install but does make it easier and useful to have)\r\n\r\n \r\n\r\n ","brand":"Rutherford Racing","offers":[{"title":"\"Enduro-Light\"","offer_id":42958556168267,"sku":"124114400","price":54.16,"currency_code":"GBP","in_stock":true},{"title":"\"Hard-Enduro Medium\"","offer_id":42958556201035,"sku":"15454884","price":54.16,"currency_code":"GBP","in_stock":true},{"title":"\"Hard_Enduro_Heavy\"","offer_id":42958556233803,"sku":"25655545","price":54.16,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/20230623_173912-scaled_2e7bbb7b-42c4-4164-b87b-912e07c56282.jpg?v=1785514902"},{"product_id":"swap-ecu-deposit","title":"Swap ECU deposit","description":"If you want to have the kit sent out with no time off the bike we can arrange for a swap ECU.\n\n\n\nNote\n\n\u003cul\u003e\n\n \t\u003cli\u003eWe have a limited number of swap ECUs\u003c\/li\u003e\n\n \t\u003cli\u003eWe may deduct '30 if your ECU is in very poor condition and needs media blasting.\u003c\/li\u003e\n\n\u003c\/ul\u003e","brand":"Rutherford Racing","offers":[{"title":"Default Title","offer_id":42374370230347,"sku":"10718","price":250.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/KTM-ECU_02fd8277-7201-49f4-b531-49fb6b5461e4.jpg?v=1777684392"},{"product_id":"keihin-pwk-38mm-carburetor-short-body-to-suit-ktm-husky-yamaha-yz","title":"Keihin PWK 38mm Carburetor - SHORT BODY to suit KTM\/Husky \u0026 Yamaha YZ","description":"Short Body Keihin PWK 38mm carb to suit KTM and Husky 125\u0026amp;150\/250\/300s, and Yamaha YZ125 from 2006-2021. A great upgrade from the stock Mikuni carb. Works with the stock throttle cable.\n\n\n\nComes with TSP jetting to suit models listed plus some spare jets. Please let us know if you have a different model and we may be able to supply different jetting.\n\n\n\nPlease note if you are fitting it to another model of bike, choose the option \"model not listed\" it will come with the standard generic jetting that will need to be changed to suit your bike.\n\n\n\n ","brand":"Rutherford Racing","offers":[{"title":"KTM\/Husky 125cc SX\/EXC\/TC\/TE 16-current","offer_id":42374370295883,"sku":"13114","price":350.0,"currency_code":"GBP","in_stock":false},{"title":"KTM\/Husky 150 SX\/EXC\/TC\/TE\/XC-W 16-current","offer_id":42374370328651,"sku":"13115","price":350.0,"currency_code":"GBP","in_stock":true},{"title":"KTM\/Husky 250cc EXC\/TE 08-16","offer_id":42374370361419,"sku":"13116","price":350.0,"currency_code":"GBP","in_stock":true},{"title":"KTM\/Husky 250cc EXC\/TE 17-current","offer_id":42374370394187,"sku":"13117","price":350.0,"currency_code":"GBP","in_stock":true},{"title":"KTM\/Husky 250cc SX\/TC 08-16","offer_id":42374370426955,"sku":"13118","price":350.0,"currency_code":"GBP","in_stock":true},{"title":"KTM\/Husky 250cc XC\/SX\/TC\/TX 17-current","offer_id":42374370459723,"sku":"13119","price":350.0,"currency_code":"GBP","in_stock":true},{"title":"KTM\/Husky 300cc EXC\/XC\/TE 08-16","offer_id":42374370492491,"sku":"13120","price":350.0,"currency_code":"GBP","in_stock":true},{"title":"KTM\/Husky 300cc EXC\/XC\/TE\/TX 17-current","offer_id":42374370525259,"sku":"13121","price":350.0,"currency_code":"GBP","in_stock":true},{"title":"Yamaha YZ125 06-Current","offer_id":42374370558027,"sku":"13123","price":350.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/store_carmera_20211220_113311_648_a2cccf0d-5602-493f-9b68-2d1801846840.jpg?v=1785515603"},{"product_id":"tsp-cylinder-head-o-ring-washer-kit-ktm-85-13-current","title":"TSP Cylinder head O-Ring \u0026 Washer kit - KTM 85 13-Current","description":"Image is for illustration purposes only. You will receive the correct parts for your model.\n\n\n\nEquivalent of OEM quality, without the OEM price-tag.\n\n\n\nThe Kit includes:\n\n1 x Cylinder head inner o-ring (viton)\n\n1 x Cylinder head outer o-ring (viton)\n\n6 x Cylinder head bolt copper washers\n\n\n\nPerfect items to replace when upgrading your head with one of our CNC heads.\n\n\n\nPlease note - If you are ordering a top end rebuild kit, this is already included.","brand":"Rutherford Racing","offers":[{"title":"Default Title","offer_id":42374370590795,"sku":"P.ORK.KT85.13on.CYL","price":11.75,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/O-Ring-Washer-kit-1_8326ec2c-d443-4a0a-8867-e63e6e007a1c.jpg?v=1785518320"},{"product_id":"tsp-cylinder-head-o-ring-washer-kit-ktm-125-16-on","title":"TSP Cylinder head O-Ring \u0026 Washer kit - KTM 125 16-on","description":"Image is for illustration purposes only. You will receive the correct parts for your model.\n\n\n\nEquivalent of OEM quality, without the OEM price-tag.\n\n\n\nThe Kit includes:\n\n1 x Cylinder head inner o-ring (viton)\n\n1 x Cylinder head outer o-ring (viton)\n\n6 x Cylinder head bolt copper washers\n\n\n\nPerfect items to replace when upgrading your head with one of our CNC heads.\n\n\n\nPlease note - If you are ordering a top end rebuild kit, this is already included.","brand":"Rutherford Racing","offers":[{"title":"Default Title","offer_id":42374370623563,"sku":"P.ORK.KT125.1622.CYL","price":11.75,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/O-Ring-Washer-kit-1_8b0f7847-a94b-4c03-a653-24ecf8cc607b.jpg?v=1785517132"},{"product_id":"tsp-cylinder-head-o-ring-washer-kit-ktm-150-16-current","title":"TSP Cylinder head O-Ring \u0026 Washer kit - KTM 150 16-Current","description":"Image is for illustration purposes only. You will receive the correct parts for your model.\n\n\n\nEquivalent of OEM quality, without the OEM price-tag.\n\n\n\nThe Kit includes:\n\n1 x Cylinder head inner o-ring (viton)\n\n1 x Cylinder head outer o-ring (viton)\n\n6 x Cylinder head bolt copper washers\n\n\n\nPerfect items to replace when upgrading your head with one of our CNC heads.\n\n\n\nPlease note - If you are ordering a top end rebuild kit, this is already included.","brand":"Rutherford Racing","offers":[{"title":"Default Title","offer_id":42374370656331,"sku":"P.ORK.KT150.1622.CYL","price":11.75,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/O-Ring-Washer-kit-1_663a4302-1810-4192-b687-95c1e986005f.jpg?v=1785516089"},{"product_id":"tsp-billet-head-ktm-300-exc-xc-and-husky-300-te-tx-2008-2016","title":"TSP Billet Head - KTM 300 EXC\/XC and Husky 300 TE\/TX 2008-2016","description":"Select your desired compression ratio from the drop down menu. All designs will work with stock base gaskets and cylinder heights and offer significant improvements over stock heads.\r\n\r\nNow updated to our new one piece design, with ease in mind for interchanging inserts for different riding conditions.\r\n\r\n\u003cstrong\u003eLOW COMPRESSION:\u003c\/strong\u003e'Roughly the same compression ratio as stock EXC or TE, much tighter squish clearance and better design than stock, suited to Extreme Enduro, resists overheating very well, pulls from very low rpm smoothly and predictably. Still gives a very noticeable change in performance over stock despite compression ratios being similar.\r\n\r\n\u003cstrong\u003eMEDIUM COMPRESSION (suits 90% of riders):\u003c\/strong\u003e'Our standard design, higher compression ratio than stock but still works fine with 95 or 98 RON fuel. Gives a very noticeable increase in power throughout the rev range. Give much smoother power delivery at low\/mid revs. Squish clearance is much tighter than stock. Fuel economy is greatly improved over stock. Recommended for most riders.\r\n\r\n\u003cstrong\u003eHIGH COMPRESSION:\u003c\/strong\u003e'Requires 98 RON fuel or higher.' Squish clearance is much tighter than stock. Gives maximum bottom\/mid power but less overrev. More aggressive power delivery. Will overheat more easily in tight conditions. Suited to high altitude riding or MX. We do not recommend this design for normal trail riding or enduro racing near sea level. Contact us first if you want more info about this design.\r\n\r\n\u003cstrong\u003eVERY HIGH COMPRESSION:\u003c\/strong\u003e'This design is targeted at high elevation riders above 1500m or 4500ft. It will help to make up for the power losses due to thinner air at high elevation. We strongly suggest you do not use this design below 1500m. At these high elevations this head design should give similar results to our Medium or High Comp heads at lower elevations.\r\n\r\nOur new TSP billet cylinder heads are machined from solid 6061 T6 stock and offer improved performance, reliability and fuel economy. They are the best bolt on mod you can buy for your bike!\r\n\r\nThese TSP billet heads feature TSP's proven combustion chamber designs and are a MUST HAVE mod for most current model offroad bikes. Our combustion chamber designs have been used by hundreds of happy customers and have been extensively dyno tested' the gains are consistent and include: increased power throughout the rev range (especially bottom\/mid), improved fuel economy, greatly reduced risk of detonation, increased top end life in many models, and much SMOOTHER power delivery.\r\n\r\nThe unique Billet design has been 100% developed, machined and tested in-house at TSP.\r\n\r\nThese CNC heads will bolt onto your standard cylinder and are designed to work with standard base gaskets. If you are unsure of your current base gasket thickness we can advise the correct thickness to achieve the necessary cylinder height and squish clearance.\r\n\r\nWe can also advise baseline jetting specs to go with your new Billet head. The customer takes all responsibility for ensuring that jetting is appropriate for their riding style and conditions.","brand":"Rutherford Racing","offers":[{"title":"Medium Compression","offer_id":42374370689099,"sku":"P.H.KT300.0816.12.7M","price":235.0,"currency_code":"GBP","in_stock":true},{"title":"Low Compression","offer_id":42374370721867,"sku":"P.H.KT300.0816.12.0L","price":235.0,"currency_code":"GBP","in_stock":true},{"title":"High Compression","offer_id":42374370754635,"sku":"P.H.KT300.0816.13.4H","price":235.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/KTM-BETA-SHERCO-300.jpg?v=1785518789"},{"product_id":"old-style-head-two-piece-billet-head-replacement-o-ring-kit-2","title":"Old Style Head - Two Piece Billet Head Replacement O-Ring Kit","description":"Replacement Viton O-Ring kit to suit our CNC Two piece heads. It will come with the inner smaller o-ring, and the larger outer o-ring.\n\n\n\nThese o-rings sit between the 2 parts of our billet head. They are NOT the o-rings that sit between the cylinder and head, you can see Cylinder Head O-ring kit \u003ca href=\"https:\/\/www.twostrokeperformance.com.au\/product\/cylinder-head-o-ring-washer-kit\/\"\u003ehere\u003c\/a\u003e\n\n\n\nImage is for illustration purposes only. You will receive the correct kit for your make and model.","brand":"Rutherford Racing","offers":[{"title":"Any","offer_id":42374370787403,"sku":"11023","price":9.37,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/Head-2-piece-o-ring-2_6c53720b-0269-4573-88f7-2c61d22c88a6.jpg?v=1785517813"},{"product_id":"tsp-cylinder-head-o-ring-washer-kit-ktm-300-2008-on-sherco-beta-300-2018-on","title":"TSP Cylinder head O-Ring \u0026 Washer kit - KTM 300 2008-on \u0026 Sherco\/Beta 300 2018-2021","description":"Image is for illustration purposes only. You will receive the correct parts for your model.\r\n\r\nSuits the following models:\r\n\r\nKTM 300 2008-on\r\n\r\nSherco 300 2018-on\r\n\r\nBeta 300 - 2018-2021 - Does not suit 2022 models\r\n\r\nEquivalent of OEM quality, without the OEM price-tag.\r\n\r\nThe Kit includes:\r\n\r\n1 x Cylinder head inner o-ring (viton)\r\n\r\n1 x Cylinder head outer o-ring (viton)\r\n\r\n6 x Cylinder head bolt copper washers\r\n\r\nPerfect items to replace when upgrading your head with one of our CNC heads.\r\n\r\nPlease note - If you are ordering a top end rebuild kit, this is already included.","brand":"Rutherford Racing","offers":[{"title":"Default Title","offer_id":42374370820171,"sku":"P.ORK.KT300.08on.CYL","price":11.75,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/O-Ring-Washer-kit-1_4773e5cd-9321-494c-9542-38267cd2ddb8.jpg?v=1785516093"},{"product_id":"tsp-cylinder-head-o-ring-washer-kit-ktm-250-08-current","title":"TSP Cylinder head O-Ring \u0026 Washer kit - KTM 250 08-23","description":"Image is for illustration purposes only. You will receive the correct parts for your model.\n\n\n\nEquivalent of OEM quality, without the OEM price-tag.\n\n\n\nThe Kit includes:\n\n\n\n1 x Cylinder head inner o-ring (viton)\n\n\n\n1 x Cylinder head outer o-ring (viton)\n\n\n\n6 x Cylinder head bolt copper washers\n\n\n\nPerfect items to replace when upgrading your head with one of our CNC heads.\n\n\n\nPlease note - If you are ordering a top end rebuild kit, this is already included.","brand":"Rutherford Racing","offers":[{"title":"Default Title","offer_id":42374370852939,"sku":"P.ORK.KT250.0823.CYL","price":11.75,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/O-Ring-Washer-kit-1_d646b67a-f1e0-4ad5-b1c4-57d6c212cb92.jpg?v=1785515072"},{"product_id":"tsp-cylinder-head-o-ring-washer-kit-yamaha-yz125-06-current","title":"TSP Cylinder head O-Ring \u0026 Washer kit - Yamaha YZ125 06-Current","description":"Image is for illustration purposes only. You will receive the correct parts for your model.\n\n\n\nEquivalent of OEM quality, without the OEM price-tag.\n\n\n\nThe Kit includes:\n\n1 x Cylinder head inner o-ring (viton)\n\n1 x Cylinder head outer o-ring (viton)\n\n5 x Cylinder head bolt copper washers\n\n\n\nPerfect items to replace when upgrading your head with one of our CNC heads.\n\n\n\nPlease note - If you are ordering a top end rebuild kit, this is already included.","brand":"Rutherford Racing","offers":[{"title":"Default Title","offer_id":42374370885707,"sku":"P.ORK.YA125.06on.CYL","price":11.75,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/O-Ring-Washer-kit-1_56d23c4b-b71e-405c-8aa2-875d22273c47.jpg?v=1785517944"},{"product_id":"tsp-cylinder-head-o-ring-washer-kit-yamaha-yz250-99-current","title":"TSP Cylinder head O-Ring \u0026 Washer kit - Yamaha YZ250 99-Current","description":"Image is for illustration purposes only. You will receive the correct parts for your model.\n\n\n\nEquivalent of OEM quality, without the OEM price-tag.\n\n\n\nThe Kit includes:\n\n1 x Cylinder head inner o-ring (viton)\n\n1 x Cylinder head outer o-ring (viton)\n\n6 x Cylinder head bolt copper washers\n\n\n\nPerfect items to replace when upgrading your head with one of our CNC heads.\n\n\n\nPlease note - If you are ordering a top end rebuild kit, this is already included.","brand":"Rutherford Racing","offers":[{"title":"Default Title","offer_id":42374370918475,"sku":"P.ORK.YA250.99on.CYL","price":11.75,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/O-Ring-Washer-kit-1_20223cb5-0c7c-426b-8483-1eca138aee48.jpg?v=1785515032"},{"product_id":"tsp-head-insert-suits-tsp-billet-head-from-2008-current-ktm-250-and-husky-250-models","title":"TSP Head insert - suits TSP Billet Head from 2008-Current KTM 250 and Husky 250 Models TPI and Carb","description":" \r\n\r\n** If your model head is the older two piece design, this will not suit. Please contact us for a different compression base to suit the older style 2 piece head design **\r\n\r\nThis listing is for the insert only, it does not include the head! The second picture is to show you which TSP head it suits. If your model head is the older two piece design, this will not work.\r\n\r\nThis is the listing to buy additional compression inserts to suit your TSP 250 head from 2008 models to current with the removable compression insert design, regardless of carby or TPI. The new head was designed for the intention to easily change the head inserts to suit different riding situations, while offering them at a cost effective price.\r\n\r\nThis insert will come with the inner o-ring required.","brand":"Rutherford Racing","offers":[{"title":"High Compression","offer_id":42374370951243,"sku":"P.I.KT250.08on.14.3H","price":82.5,"currency_code":"GBP","in_stock":true},{"title":"Low Compression","offer_id":42374370984011,"sku":"P.I.KT250.08on.12.9L","price":81.67,"currency_code":"GBP","in_stock":true},{"title":"Medium Compression","offer_id":42374371016779,"sku":"P.I.KT250.08on.13.6M","price":82.5,"currency_code":"GBP","in_stock":true},{"title":"Very High Compression","offer_id":42374371049547,"sku":"P.I.KT250.08on.15.0VH","price":82.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/IMG_9714_57af28dc-7081-40d9-af59-0ab2b1fd699d.jpg?v=1785518534"},{"product_id":"tsp-head-insert-suits-tsp-billet-head-from-2008-current-ktm-300-and-husky-300-models","title":"TSP Head insert - suits TSP Billet Head from 2008-Current KTM 300 and Husky 300 Models TPI \u0026 Carb","description":"** If your model head is the older two piece design, this will not suit. Please contact us for a different compression base to suit the older style 2 piece head design **\r\n\r\nThis listing is for the insert only, it does not include the head! The second picture is to show you which TSP head it suits.\r\n\r\nThis is the listing to buy additional compression inserts to suit your TSP 300 head from 2008 models to current with the removable compression insert design, regardless of carby or TPI. The new head was designed for the intention to easily change the head inserts to suit different riding situations, while offering them at a cost effective price.\r\n\r\nThis insert will come with the inner o-ring required.","brand":"Rutherford Racing","offers":[{"title":"High Compression","offer_id":42374371082315,"sku":"P.I.KT300.0823.13.4H","price":110.0,"currency_code":"GBP","in_stock":true},{"title":"Low Compression","offer_id":42374371115083,"sku":"P.I.KT300.0823.12.0L","price":110.0,"currency_code":"GBP","in_stock":true},{"title":"Medium Compression","offer_id":42374371147851,"sku":"P.I.KT300.0823.12.7M","price":110.0,"currency_code":"GBP","in_stock":true},{"title":"Very High Compression","offer_id":42374371180619,"sku":"P.I.KT300.0823.14.2VH","price":110.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/IMG_9714_9bb934a8-beeb-40de-96da-81de4c6f3832.jpg?v=1785517731"}],"url":"https:\/\/rutherfordracing.co.uk\/collections\/product_cat-two-stroke-performance.oembed?page=5","provider":"Rutherford Racing","version":"1.0","type":"link"}