{"product_id":"namura-030-over-top-end-kit-for-honda-sportrax-250-trx250ex-trx250x-69-25mm","title":"Namura .030 Over Top End Kit for Honda Sportrax 250 TRX250EX TRX250X 69.25mm","description":"\u003ch2\u003eNamura .030 Over Top End Kit for Honda\u003c\/h2\u003e\u003cp\u003eThis .030 over top end kit for the Honda Sportrax 250, TRX250EX, and TRX250X includes a 69.25mm piston, rings, and all required gaskets to rebuild the top end for improved compression and power.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis Namura .030 over top end kit is designed for Honda Sportrax 250 ATVs to restore lost power from wear. It combines a 69.25mm piston, rings, and gaskets for a complete top end rebuild. The kit delivers reliable performance for off-road riding and competition.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e69.25mm oversize piston increases displacement and compression\u003c\/li\u003e\n\u003cli\u003eIncludes wrist pin and circlips for secure installation\u003c\/li\u003e\n\u003cli\u003eHigh-quality ring set ensures proper sealing\u003c\/li\u003e\n\u003cli\u003eComplete gasket set included for a full top end job\u003c\/li\u003e\n\u003cli\u003ePrecision-machined components for consistent fit\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\u003eTop end rebuild after hours of trail riding\u003c\/li\u003e\n\u003cli\u003eRestoring compression and power for competitive racing\u003c\/li\u003e\n\u003cli\u003eReplacing worn piston and rings during engine overhaul\u003c\/li\u003e\n\u003cli\u003eBoring the cylinder to accept an oversize piston for more displacement\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\u003e69.25mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOversize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e.030 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eKit Includes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePiston, rings, wrist pin, circlips, gaskets\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 a cylinder? \u003cstrong\u003eA:\u003c\/strong\u003e No, only the piston, rings, and gaskets are included; the cylinder must be bored to match the oversize piston.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Can I use this on a stock cylinder? \u003cstrong\u003eA:\u003c\/strong\u003e The cylinder must be bored to 69.25mm to accommodate the oversize piston, so a stock cylinder will not work without 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":44949744025686,"sku":"SZ1F13838","price":186.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_1e5835ce-f98e-49e6-a76c-63c269544722.jpg?v=1781397721","url":"https:\/\/www.solidspare.com\/products\/namura-030-over-top-end-kit-for-honda-sportrax-250-trx250ex-trx250x-69-25mm","provider":"Solid Spare","version":"1.0","type":"link"}