{"product_id":"namura-standard-bore-piston-kit-size-a-for-honda-cr85r-cr85rb-2003-2007-47-5mm","title":"Namura Standard Bore Piston Kit Size A for Honda CR85R \u0026 CR85RB 2003-2007 47.5mm","description":"\u003ch2\u003eNamura Standard Bore Piston Kit Size A for Honda\u003c\/h2\u003e\u003cp\u003eThis Namura standard bore piston kit size A is a direct replacement for Honda CR85R and CR85RB models from 2003-2007, featuring a 47.5mm bore for reliable engine rebuilds.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis Namura standard bore piston kit size A is a drop-in replacement for Honda CR85R and CR85RB two-stroke engines from 2003 to 2007. Designed with a 47.5mm bore and precision-machined from high-strength aluminum alloy, this standard bore piston kit restores compression and power after top-end wear. Riders rebuilding their Honda minis will find this kit an economical choice for getting back on the track.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eHigh-silicon aluminum alloy casting reduces weight and improves heat dissipation\u003c\/li\u003e\n\u003cli\u003ePrecision-machined skirt and ring grooves ensure consistent sealing\u003c\/li\u003e\n\u003cli\u003eIncludes piston rings, wrist pin, and circlips for a complete top-end set\u003c\/li\u003e\n\u003cli\u003eBridged intake design strengthens the piston crown under high RPM loads\u003c\/li\u003e\n\u003cli\u003ePlated finish reduces friction against cylinder walls\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Honda CR85R (2003-2007)\u003c\/li\u003e\n\u003cli\u003efor Honda CR85RB (2003-2007)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMotocross racing on outdoor tracks\u003c\/li\u003e\n\u003cli\u003eOff-road trail riding and hare scrambles\u003c\/li\u003e\n\u003cli\u003eRebuilding top-end after piston wear or ring failure\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\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e47.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStandard Bore\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh-Strength Aluminum Alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number(s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSize A\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 Do I need to hone the cylinder before installing this kit? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, always deglaze or hone the cylinder to the correct crosshatch pattern and verify clearance per the manufacturer’s service manual for proper ring seating.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Can I use this piston kit with a stock cylinder? \u003cstrong\u003eA:\u003c\/strong\u003e Absolutely, this standard bore size A piston is designed to fit the stock 47.5mm cylinder bore without oversize machining.\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":44890362118230,"sku":"SZ1F10407","price":105.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_7a8daa1b-2d55-42c2-847a-e8ac11087703.jpg?v=1781138344","url":"https:\/\/www.solidspare.com\/products\/namura-standard-bore-piston-kit-size-a-for-honda-cr85r-cr85rb-2003-2007-47-5mm","provider":"Solid Spare","version":"1.0","type":"link"}