{"product_id":"vertex-ktm-group-250-2023-on-tbi-top-end-rebuild-kit","title":"Vertex KTM 'Group' 250 2023-on TBI Top End Rebuild kit","description":"This Vertex top end rebuild kit will suit KTM ‘Group’ 2023-on TBI 250cc Models. Images shows the gaskets you will receive.  You will receive the correct parts for your model.\r\n\r\nIt includes:\r\n\u003cul type=\"disc\"\u003e\r\n \t\u003cli\u003eVertex piston kit in the size of your choice (A or B). Piston kit includes rings, pin, circlips and a high quality cast piston.\u003c\/li\u003e\r\n \t\u003cli\u003eTop end gasket kit.  Includes two gaskets to achieve the stock 0.60mm thickness base gasket, powervalve cover gaskets, copper washers and O rings… all O rings are the correct size and made from the correct material, unlike the cheaper aftermarket kits.\u003c\/li\u003e\r\n \t\u003cli\u003elittle end bearing\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\nPiston sizing: ideally you should measure your bore with a dial gauge to work out the correct piston sizing. If you cannot do this then a rough rule of thumb is use an A size under 100 hours of engine run time and use a B size over 100 hours of engine run time. Its ALWAYS better to have a bit too much clearance than not enough, so if in doubt use an A size.","brand":"Rutherford Racing","offers":[{"title":"A","offer_id":42377005137995,"sku":"TK36303A","price":133.33,"currency_code":"GBP","in_stock":true},{"title":"B","offer_id":42377005170763,"sku":"TK36303B","price":133.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/store_carmera_2023414_15226_879_f723489b-862c-4644-8adc-afda26b61d0a.jpg?v=1785499374","url":"https:\/\/rutherfordracing.co.uk\/products\/vertex-ktm-group-250-2023-on-tbi-top-end-rebuild-kit","provider":"Rutherford Racing","version":"1.0","type":"link"}