{"product_id":"vertex-beta-300-2018-21-top-end-rebuild-kit-72mm","title":"Vertex Beta 300 2018-21 Top End Rebuild kit 72mm","description":"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 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.\r\n\r\n \r\n\r\nRR 300 2T 2018-21\r\nXtrainer 300 2018-21\r\n\r\n \r\n\r\n ","brand":"Rutherford Racing","offers":[{"title":"A","offer_id":42377111044171,"sku":"VERTEX300TBI-1-1","price":147.0,"currency_code":"GBP","in_stock":true},{"title":"B","offer_id":42377111076939,"sku":"TK42443B-1-1","price":147.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/5171\/7707\/files\/store_carmera_2023414_15226_879_456944b3-bc68-4c57-be75-e0d044e66e38.jpg?v=1785508597","url":"https:\/\/rutherfordracing.co.uk\/products\/vertex-beta-300-2018-21-top-end-rebuild-kit-72mm","provider":"Rutherford Racing","version":"1.0","type":"link"}