{"product_id":"namura-size-b-standard-bore-piston-kit-for-honda-crf250r-crf250rx-2018-2019-79mm","title":"Namura Size B Standard Bore Piston Kit for Honda CRF250R CRF250RX 2018-2019 79mm","description":"\u003ch2\u003ePiston Kit (Size B Standard Bore) for Honda\u003c\/h2\u003e\u003cp\u003eThis piston kit is a Namura Size B standard bore piston at 79mm for Honda CRF250R and CRF250RX models from 2018 to 2019, providing a direct replacement for OEM piston assemblies.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis Namura Size B standard bore piston kit is designed for Honda CRF250R and CRF250RX dirt bikes from 2018-2019, using a 79mm piston to restore factory compression and performance. It is an ideal choice for rebuilding the top end of a CRF250R or CRF250RX engine.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePrecision-cast from high-silicon aluminum alloy for durability\u003c\/li\u003e\n\u003cli\u003eSize B classification ensures proper fit within factory tolerances\u003c\/li\u003e\n\u003cli\u003eIncludes piston, rings, wrist pin, and circlips\u003c\/li\u003e\n\u003cli\u003eStandard bore 79mm matches stock cylinder dimensions\u003c\/li\u003e\n\u003cli\u003eDirect replacement for OEM piston assemblies\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Honda CRF250R (2018-2019)\u003c\/li\u003e\n\u003cli\u003efor Honda CRF250RX (2018-2019)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eRebuilding a motocross engine for competitive racing\u003c\/li\u003e\n\u003cli\u003eRestoring top-end performance on a trail or enduro bike\u003c\/li\u003e\n\u003cli\u003ePerforming routine top-end maintenance after hours of riding\u003c\/li\u003e\n\u003cli\u003eReplacing a worn or damaged piston during engine overhaul\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e79mm (Standard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePiston Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSize B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003efor Honda CRF250R\/RX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eYear Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2018-2019\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch4\u003eGood To Know\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is the piston pre-assembled with rings and pin? \u003cstrong\u003eA:\u003c\/strong\u003e The piston comes with rings and wrist pin included but not installed; they must be fitted during assembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Will this standard bore piston work with a worn cylinder? \u003cstrong\u003eA:\u003c\/strong\u003e It is designed for a cylinder within factory specifications; if the cylinder is worn or damaged, it may need to be honed or replaced.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eSlight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Solid Spare","offers":[{"title":"Default Title","offer_id":44949774008406,"sku":"SZ1F14661","price":226.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_2ad1b7a7-1643-418b-97b1-a5ed3591536c.jpg?v=1781398719","url":"https:\/\/www.solidspare.com\/products\/namura-size-b-standard-bore-piston-kit-for-honda-crf250r-crf250rx-2018-2019-79mm","provider":"Solid Spare","version":"1.0","type":"link"}