{"product_id":"namura-standard-bore-top-end-kit-for-honda-sportrax-250-trx250ex-trx250x-68-5mm","title":"Namura Standard Bore Top End Kit for Honda Sportrax 250 TRX250EX TRX250X 68.5mm","description":"\u003ch2\u003eNamura Standard Bore Top End Kit for Honda\u003c\/h2\u003e\u003cp\u003eThis Namura Standard Bore Top End Kit rebuilds the top end of a Honda Sportrax 250 TRX250EX or TRX250X with a 68.5mm bore, providing a direct replacement for worn pistons, rings, and gaskets to restore compression and performance.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis Namura Standard Bore Top End Kit for Honda delivers the essential components needed to refresh the cylinder assembly on a Honda TRX250EX or TRX250X, replacing factory parts with a 68.5mm bore size to bring back lost power and reliability. The kit includes a piston, rings, wrist pin, and gaskets, making it a complete solution for top-end restoration on these specific Honda sport ATV models.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eIncludes a 68.5mm standard bore piston specifically for Honda TRX250EX and TRX250X engines\u003c\/li\u003e\n\u003cli\u003eHigh-quality ring set designed for proper sealing and reduced blow-by\u003c\/li\u003e\n\u003cli\u003ePrecision-machined wrist pin ensures smooth connection between piston and connecting rod\u003c\/li\u003e\n\u003cli\u003eComplete gasket set allows a hassle-free reassembly of the top end\u003c\/li\u003e\n\u003cli\u003eManufactured to exacting tolerances for reliable long-term use\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\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\u003eRebuilding a worn top end on a Honda Sportrax 250 trail ATV\u003c\/li\u003e\n\u003cli\u003eRestoring compression after high-mileage or seasonal use\u003c\/li\u003e\n\u003cli\u003eReplacing a damaged or seized piston and cylinder assembly\u003c\/li\u003e\n\u003cli\u003ePerforming a routine top-end refresh 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\u003ePart Number(s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNamura Standard Bore Top End Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e68.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eComponents\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePiston, rings, wrist pin, gaskets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHonda 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 Does this kit include everything needed to rebuild the top end? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, it includes a 68.5mm piston, ring set, wrist pin, and complete gasket kit for a full top-end refresh on the specified Honda models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Can I use this kit on a standard-bore cylinder without machining? \u003cstrong\u003eA:\u003c\/strong\u003e This kit is designed for a standard 68.5mm bore, so your cylinder must be in good condition and within spec; always measure before installation.\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":44949744353366,"sku":"SZ1F13848","price":186.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_74dc5297-cb13-42c0-96da-e1a0cdc2a444.jpg?v=1781397734","url":"https:\/\/www.solidspare.com\/products\/namura-standard-bore-top-end-kit-for-honda-sportrax-250-trx250ex-trx250x-68-5mm","provider":"Solid Spare","version":"1.0","type":"link"}