{"product_id":"namura-030-over-bore-piston-kit-for-honda-sportrax-250-trx250ex-trx250x-69-25mm","title":"Namura .030 Over Bore Piston Kit for Honda Sportrax 250 TRX250EX TRX250X 69.25mm","description":"\u003ch2\u003eNamura .030 Over Bore Piston Kit for Honda Sportrax 250 TRX250EX TRX250X\u003c\/h2\u003e\u003cp\u003eThis Namura .030 over bore piston kit is a direct replacement piston assembly for Honda Sportrax 250 models, increasing engine displacement to 69.25mm for added power and torque.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe Namura .030 over bore piston kit is designed for Honda Sportrax 250 TRX250EX and TRX250X ATVs, providing a cost-effective way to restore or enhance engine performance. This kit includes a precision-cast piston, rings, and wrist pin for a complete top-end rebuild. Ideal for riders seeking reliable power gains from their 250cc engine.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePrecision-machined from high-strength aluminum alloy for durability and heat resistance\u003c\/li\u003e\n\u003cli\u003e.030 over bore size increases displacement for noticeable power gain\u003c\/li\u003e\n\u003cli\u003eIncludes moly-coated rings for reduced friction and improved sealing\u003c\/li\u003e\n\u003cli\u003eForged wrist pin with retaining clips ensures secure connection to connecting rod\u003c\/li\u003e\n\u003cli\u003eManufactured to exacting tolerances for easy installation and long service life\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Honda Sportrax 250 TRX250EX\u003c\/li\u003e\n\u003cli\u003efor Honda Sportrax 250 TRX250X\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eUsed for rebuilding top end of Honda Sportrax 250 engines after wear or damage\u003c\/li\u003e\n\u003cli\u003eIdeal for restoring compression and power in high-mileage ATVs\u003c\/li\u003e\n\u003cli\u003eCommonly installed during performance upgrades or after bore damage\u003c\/li\u003e\n\u003cli\u003eProvides reliable operation for trail riding, recreational use, and light racing\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 (0.030 inch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplacement Increase\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~1.5cc over stock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIncludes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePiston, Rings, Wrist Pin, Clips\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 Will this piston kit require cylinder boring? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, because it is an over bore piston, the cylinder must be bored to the matching 69.25mm diameter for proper fit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Can this kit be used with stock cylinder head? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, the stock cylinder head is compatible, but always check valve-to-piston clearance after 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":44890471759958,"sku":"SZ1F11436","price":131.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_e4825936-aaeb-41be-bd9d-ec9693d37a4a.jpg?v=1781140074","url":"https:\/\/www.solidspare.com\/products\/namura-030-over-bore-piston-kit-for-honda-sportrax-250-trx250ex-trx250x-69-25mm","provider":"Solid Spare","version":"1.0","type":"link"}