{"product_id":"replacement-170cc-63mm-big-bore-kit-used-w-6-stroker-ceramic-forged-all-klx140","title":"Ceramic 63mm Big Bore Kit - 13.5:1 Forged Piston - All KLX140","description":"\u003cdiv style=\"text-align: center;\"\u003e\n\u003cstrong\u003e63mm Forged Piston and Ceramic Cylinder Kit\u003cbr\u003e\u003cbr\u003e13.5:1 Forged Piston for the 31\/25 heads and +6 Stroke Crank\u003cbr\u003e\u003c\/strong\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cp\u003eIncludes:\u003cbr\u003eCeramic Coated Cylinder\u003cbr\u003e63mm Forged Piston Kit \u003cspan\u003ew\/ 13.5:1 CR\u003cbr\u003e\u003c\/span\u003eValve Reliefs cut specific for the \u003ca href=\"https:\/\/www.factoryminibikes.com\/products\/34-29-big-valve-cnc-ported-race-head-klx140-l-g?_pos=18\u0026amp;_sid=8546c160f\u0026amp;_ss=r\" target=\"_blank\" rel=\"noopener\"\u003eBRT 31\/25 Head\u003c\/a\u003e\u003cbr\u003eWrist Pin Height specific for use on the \u003ca href=\"https:\/\/www.factoryminibikes.com\/products\/6mm-stroker-crank-klx140-l-g?_pos=2\u0026amp;_psq=brt+crank\u0026amp;_ss=e\u0026amp;_v=1.0\" target=\"_blank\" rel=\"noopener\"\u003e+6mm BRT Stroker Crank\u003c\/a\u003e\u003cbr\u003eWrist Pin, Rings, and Clips\u003cbr\u003eHead and Base Gaskets\u003cbr\u003e\u003cbr\u003e\u003cspan\u003e\u003cbr\u003eCeramic cylinders dissipate heat more efficiently to keep engine temps down. A must have for these KLX140s\u003c\/span\u003e\u003c\/p\u003e\n\u003cspan style=\"text-decoration: underline;\"\u003eNotes:\u003c\/span\u003e\u003cbr\u003eRe-jetting of the carb is needed after installing this kit. We strongly suggest an aftermarket exhaust with any bore kit. We recommend using a high octane race fuel with anything above 13:1 CR.\u003cbr\u003e\n\u003c\/div\u003e","brand":"BRT","offers":[{"title":"Default Title","offer_id":49779712524565,"sku":"13.5:1--31\/25--+6--63mm","price":249.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1205\/7200\/files\/DSC_2102-e1541469648945__74764_1024x1024_5ba73dc1-65aa-4139-8f55-8059c7f26dcc.webp?v=1771539736","url":"https:\/\/www.factoryminibikes.com\/products\/replacement-170cc-63mm-big-bore-kit-used-w-6-stroker-ceramic-forged-all-klx140","provider":"Factory Minibikes","version":"1.0","type":"link"}