{"product_id":"piston-kit-1997-yz125-56-00-wossner-8117d200-yamaha-mx","title":"PISTON KIT 1997 YZ125 56.00, WOSSNER 8117D200 YAMAHA MX","description":"\u003cp\u003eThis Wossner forged piston kit is developed for the 1997 Yamaha YZ125 and features a 56.00mm bore (+2.00mm oversize). Precision-engineered in Germany, it is designed with an elliptical profile that optimises load distribution and reduces localised stress during heat expansion. This construction enhances durability and prevents piston collapse under high-performance conditions. The kit promotes effective heat dissipation from the combustion chamber to the cylinder wall, ensuring stable engine performance in demanding two-stroke applications.\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cul\u003e\n\u003cbr\u003e\t\u003cli\u003e\n\u003cbr\u003e\t\u003cp\u003eHigh-strength forged piston for durability and performance\u003c\/p\u003e\n\u003cbr\u003e\t\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003e\n\u003cbr\u003e\t\u003cp\u003eElliptical profile allows uniform expansion under heat\u003c\/p\u003e\n\u003cbr\u003e\t\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003e\n\u003cbr\u003e\t\u003cp\u003eMinimises risk of piston collapse by reducing localised stress\u003c\/p\u003e\n\u003cbr\u003e\t\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003e\n\u003cbr\u003e\t\u003cp\u003eOptimised for effective combustion heat transfer\u003c\/p\u003e\n\u003cbr\u003e\t\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003e\n\u003cbr\u003e\t\u003cp\u003ePrecision-manufactured in Germany\u003c\/p\u003e\n\u003cbr\u003e\t\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cul\u003e\n\u003cbr\u003e\t\u003cli\u003e\n\u003cbr\u003e\t\u003cp\u003eBore Size: 56.00mm (+2.00mm oversize)\u003c\/p\u003e\n\u003cbr\u003e\t\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003e\n\u003cbr\u003e\t\u003cp\u003eActual Diameter: 55.94mm\u003c\/p\u003e\n\u003cbr\u003e\t\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003e\n\u003cbr\u003e\t\u003cp\u003eCompression Height: 28.00mm\u003c\/p\u003e\n\u003cbr\u003e\t\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003e\n\u003cbr\u003e\t\u003cp\u003eStroke: 54.50mm\u003c\/p\u003e\n\u003cbr\u003e\t\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003e\n\u003cbr\u003e\t\u003cp\u003eDisplacement: 124 cm³\u003c\/p\u003e\n\u003cbr\u003e\t\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003e\n\u003cbr\u003e\t\u003cp\u003ePiston Clearance: 0.06mm\u003c\/p\u003e\n\u003cbr\u003e\t\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003e\n\u003cbr\u003e\t\u003cp\u003eCompression Ratio: 2-stroke (Wossner and OEM)\u003c\/p\u003e\n\u003cbr\u003e\t\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eCross-Reference OEM Part Numbers\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cul\u003e\n\u003cbr\u003e\t\u003cli\u003e\n\u003cbr\u003e\t\u003cp\u003eWossner Piston Kit Part No: 8117D200\u003c\/p\u003e\n\u003cbr\u003e\t\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003e\n\u003cbr\u003e\t\u003cp\u003eLock: CW15\u003c\/p\u003e\n\u003cbr\u003e\t\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003e\n\u003cbr\u003e\t\u003cp\u003ePin: WP032\u003c\/p\u003e\n\u003cbr\u003e\t\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003e\n\u003cbr\u003e\t\u003cp\u003eRing Set: RSB5600\u003c\/p\u003e\n\u003cbr\u003e\t\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003e\n\u003cbr\u003e\t\u003cp\u003eRod: P2019\u003c\/p\u003e\n\u003cbr\u003e\t\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eVehicle Fitments\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cul\u003e\n\u003cbr\u003e\t\u003cli\u003e\n\u003cbr\u003e\t\u003cp\u003e1997 Yamaha YZ125\u003c\/p\u003e\n\u003cbr\u003e\t\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e","brand":"ORO2U","offers":[{"title":"Default Title","offer_id":57161908617589,"sku":"56-W693_200.WO","price":138.82,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5011\/6136\/files\/stock56419_1.jpg?v=1778546009","url":"https:\/\/www.smxoffroad.com\/fr\/products\/piston-kit-1997-yz125-56-00-wossner-8117d200-yamaha-mx","provider":"SMXOFFROAD Ltd","version":"1.0","type":"link"}