{"product_id":"namura-010-over-bore-piston-kit-for-honda-sportrax-250-trx250ex-trx250x-68-75mm","title":"Namura .010 Over Bore Piston Kit for Honda Sportrax 250 TRX250EX TRX250X 68.75mm","description":"\u003ch2\u003eNamura .010 Over Bore Piston Kit for Honda\u003c\/h2\u003e\u003cp\u003eThis Namura .010 over bore piston kit is a direct replacement for Honda Sportrax 250, TRX250EX, and TRX250X ATV engines, featuring a 68.75mm bore size to restore compression and power after cylinder wear. It includes the piston, rings, wrist pin, and circlips for a complete top-end rebuild.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis Namura .010 over bore piston kit is designed for Honda Sportrax 250, TRX250EX, and TRX250X models, providing a 68.75mm bore to match over-bored cylinders. It is ideal for rebuilding ATV engines to factory-like performance, with all necessary components included for a straightforward installation. The Namura piston kit delivers durability and consistent power for recreational and competition use.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePrecision-machined 68.75mm piston for a .010 over bore fit\u003c\/li\u003e\n\u003cli\u003eHigh-strength aluminum alloy construction for heat resistance\u003c\/li\u003e\n\u003cli\u003eIncludes piston rings with optimal tension for reduced blow-by\u003c\/li\u003e\n\u003cli\u003eWrist pin and circlips supplied for secure assembly\u003c\/li\u003e\n\u003cli\u003eDesigned to meet OEM specifications for Honda engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Honda Sportrax 250\u003c\/li\u003e\n\u003cli\u003efor Honda TRX250EX\u003c\/li\u003e\n\u003cli\u003efor Honda TRX250X\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTrail riding and recreational ATV use where engine rebuild is needed\u003c\/li\u003e\n\u003cli\u003eAfter cylinder honing or boring to restore compression\u003c\/li\u003e\n\u003cli\u003eRacing and competitive off-road events\u003c\/li\u003e\n\u003cli\u003eRoutine engine maintenance to extend service life\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\u003e68.75mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOverbore\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e.010 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePiston Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAluminum Alloy\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 Sportrax 250, TRX250EX, TRX250X\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 piston kit? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, the cylinder should be professionally honed to the correct clearance for a .010 over bore piston to ensure proper ring seating and oil control.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Can this piston kit be used with a stock carburetor or EFI system? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, it is designed to work with the original fuel delivery system, but we recommend checking jetting or tuning after installation for optimal performance.\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":44890471694422,"sku":"SZ1F11434","price":131.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_7d232e71-2a1a-4d27-be00-232041484248.jpg?v=1781140072","url":"https:\/\/www.solidspare.com\/products\/namura-010-over-bore-piston-kit-for-honda-sportrax-250-trx250ex-trx250x-68-75mm","provider":"Solid Spare","version":"1.0","type":"link"}