{"product_id":"namura-standard-bore-piston-kit-size-a-66-34mm-for-honda-cr250r-2002-2004-66-4mm","title":"Namura Standard Bore Piston Kit Size A 66.34mm for Honda CR250R 2002-2004 66.4mm","description":"\u003ch2\u003eNamura Standard Bore Piston Kit Size A 66.34mm for Honda\u003c\/h2\u003e\u003cp\u003eThis piston kit is a direct replacement for Honda CR250R two-stroke engines from 2002 to 2004, restoring compression and performance.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe Namura standard bore piston kit size A 66.34mm is engineered for Honda CR250R motorcycles, providing a reliable replacement that maintains factory compression ratios. Precision-machined from cast aluminum alloy, this piston kit ensures a proper fit in the cylinder bore. Ideal for engine rebuilds or top-end refreshes, it helps restore lost power and reliability.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSize A 66.34mm diameter for standard bore applications\u003c\/li\u003e\n\u003cli\u003eIncludes piston, rings, wrist pin, and circlips\u003c\/li\u003e\n\u003cli\u003eHigh-quality cast aluminum alloy for strength and heat dissipation\u003c\/li\u003e\n\u003cli\u003ePrecision pin bore and ring grooves for consistent compression\u003c\/li\u003e\n\u003cli\u003eDesigned to match OEM specifications for Honda CR250R 2002-2004\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor Honda CR250R (2002-2004)\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMotocross and off-road racing\u003c\/li\u003e\n\u003cli\u003eTrail riding and recreational dirt biking\u003c\/li\u003e\n\u003cli\u003eEngine rebuilds and top-end replacements\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\u003e66.34mm (Size A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOversize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e66.4mm (if applicable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNamura\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTwo-Stroke Single Cylinder\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 re-plate or hone the cylinder for this piston? \u003cstrong\u003eA:\u003c\/strong\u003e For a standard bore piston kit, the cylinder must be within specification; measure wear and condition before installation, and consider a light hone if needed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What is the difference between Size A and other sizes? \u003cstrong\u003eA:\u003c\/strong\u003e Size A denotes the standard bore size; larger sizes (B, C, etc.) are oversize pistons for rebored cylinders. This kit is for stock bore.\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":44890496204886,"sku":"SZ1F11992","price":140.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_c316ccf5-d74e-4615-a3dd-6acb9ea6586e.jpg?v=1781140796","url":"https:\/\/www.solidspare.com\/products\/namura-standard-bore-piston-kit-size-a-66-34mm-for-honda-cr250r-2002-2004-66-4mm","provider":"Solid Spare","version":"1.0","type":"link"}