{"product_id":"piston-kit-90-91-kx250-67-40-b-wossner-8109db-kawasaki-mx","title":"Piston Kit 90-91 KX250 67.40 B, Wossner 8109DB Kawasaki MX","description":"\u003cp\u003e\u003cstrong\u003eWossner Forged Piston Kit 67.41mm Bore – Kawasaki KX250 \/ KDX250 (1990–1994)\u003c\/strong\u003e\u003cbr\u003e\nThis Wossner forged piston kit is designed for Kawasaki KX250 and KDX250 models manufactured between 1990 and 1994. Featuring a 67.41 mm bore and a piston diameter of 67.35 mm (+0.01 mm oversize), it offers excellent mechanical strength and thermal stability. Forged in Germany, the piston incorporates an elliptical design that promotes even load distribution and minimises the risk of localised pressure build-up under heat expansion.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e \u003cp\u003eForged construction for superior strength and extended service life\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eOptimised for efficient combustion chamber heat dissipation\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eElliptical geometry provides uniform thrust load distribution and reduces wear\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003ePrecision-manufactured 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 Size: 67.41 mm\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003ePiston Diameter: 67.35 mm\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eEngine Displacement: 250 cm³\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eStroke: 70.00 mm\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eClearance: 0.06 mm\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eCompression Height: 37.00 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 Wossner Part Numbers\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e \u003cp\u003ePiston Kit: 8109DB\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eLock: CW18\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003ePin: WP033\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eRing Set: RSB6740 x 2\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eRod: P2022\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\u003e1990 Kawasaki KX250\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003e1991 Kawasaki KX250\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003e1991 Kawasaki KDX250\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003e1992 Kawasaki KDX250\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003e1993 Kawasaki KDX250\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003e1994 Kawasaki KDX250\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\u003eKAWASAKI\u003c\/td\u003e\n\u003ctd\u003eKX 250\u003c\/td\u003e\n\u003ctd\u003e1990-1991\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKAWASAKI\u003c\/td\u003e\n\u003ctd\u003eKDX 250\u003c\/td\u003e\n\u003ctd\u003e1991-1994\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKAWASAKI\u003c\/td\u003e\n\u003ctd\u003eKDX 250\u003c\/td\u003e\n\u003ctd\u003e1991-1997\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKAWASAKI\u003c\/td\u003e\n\u003ctd\u003eKDX E 250\u003c\/td\u003e\n\u003ctd\u003e1992-1995\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":57506616279420,"sku":"56-W607+00B.WO","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3952\/8167\/files\/stock56034_1.jpg?v=1790482172","url":"https:\/\/radhouse.co.uk\/products\/piston-kit-90-91-kx250-67-40-b-wossner-8109db-kawasaki-mx","provider":"Radhouse","version":"1.0","type":"link"}