{"product_id":"piston-kit-87-90-trx250-66-50-wossner-8189d050-honda-atv","title":"Piston Kit 87-90 TRX250 66.50, Wossner 8189D050 Honda ATV","description":"\u003cp\u003eWossner forged piston kit for Honda ATC250R and TRX250R models from 1987 to 1990, featuring an oversize bore of 66.50 mm (+0.50 mm). This piston is crafted for high-performance 2-stroke engines and provides superior heat management and structural integrity. The elliptical piston shape helps ensure uniform expansion and reduces localised stress, improving durability during demanding operation. Manufactured in Germany to precise specifications.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e \u003cp\u003eHigh-strength forged piston design\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eEnhanced combustion chamber heat transfer to cylinder walls\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eElliptical shape for consistent bearing surface under heat expansion\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eDeveloped specifically for 2-stroke engines\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eManufactured in Germany\u003c\/p\u003e \u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e \u003cp\u003eBore: 66.50 mm\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eActual Bore Diameter: 66.44 mm\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eCompression Height: 33.00 mm\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eDisplay Volume: 246 cm³\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eStroke: 72.00 mm\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eClearance: 0.06 mm\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eCompression Ratio: 2-stroke (Wossner and OEM)\u003c\/p\u003e \u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eCross-Reference OEM Part Numbers\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e \u003cp\u003ePiston Kit Part No.: 8189D050\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eLock P\/N: CW18\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003ePin P\/N: WP033\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eRing Set P\/N: RSB6650 (x2)\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eRod P\/N: P2042\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eAlternate Part No.: 56-W562.P2.WO\u003c\/p\u003e \u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eVehicle Fitments\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e \u003cp\u003eHonda ATC250R (1987–1990)\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eHonda TRX250R (1987–1990)\u003c\/p\u003e \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- venture-connect-compatibility:start --\u003e\n\u003csection class=\"venture-connect-compatibility\"\u003e\u003ch3\u003eVehicle Compatibility\u003c\/h3\u003e\n\u003cp\u003ePlease check the exact model and year before ordering.\u003c\/p\u003e\n\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eManufacturer\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHONDA\u003c\/td\u003e\n\u003ctd\u003eTRX 250\u003c\/td\u003e\n\u003ctd\u003e1987-1989\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHONDA\u003c\/td\u003e\n\u003ctd\u003eTRX 350\u003c\/td\u003e\n\u003ctd\u003e2000-2006\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003c\/section\u003e\n\u003c!-- venture-connect-compatibility:end --\u003e","brand":"Wossner","offers":[{"title":"Default Title","offer_id":57506609037692,"sku":"56-W562.P2.WO","price":169.84,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3952\/8167\/files\/stock55806_1.jpg?v=1790481640","url":"https:\/\/radhouse.co.uk\/products\/piston-kit-87-90-trx250-66-50-wossner-8189d050-honda-atv","provider":"Radhouse","version":"1.0","type":"link"}