{"product_id":"piston-98-00-yzf-wr400f-92-hc-wossner-piston-kit-8639dc","title":"PISTON 98-00 YZF\/WR400F 92 HC, WOSSNER PISTON KIT 8639DC","description":"\u003cp\u003eWossner forged piston kit designed for high compression and performance. Engineered for optimal heat transfer to cylinder walls, ensuring efficient combustion. The elliptical design provides a uniform bearing surface under heat expansion, reducing localized pressure and evenly distributing thrust loads to prevent piston collapse. Manufactured in Germany to high-quality standards.\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\u003eHigh-compression forged piston for enhanced performance\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003eOptimized heat transfer for efficient combustion\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003eElliptical design to prevent piston collapse\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003eManufactured in Germany\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\u003eBore Size: 92.02mm\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003eActual Bore Diameter: 91.97mm\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003eDisplacement: 399 cm³\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003eStroke: 60.10mm\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003eClearance: 0.05mm\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003eWossner Compression Ratio: 13.50:1\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003eOEM Compression Ratio: 12.50:1\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003eDome Volume: -4.60 cm³\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003eCompression Height: 24.10mm\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003eTheoretical Weight: Not specified\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eIncluded Components\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cul\u003e\n\u003cbr\u003e\t\u003cli\u003eLock Part Number: CW18\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003ePin Part Number: WP053\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003eRing Set Part Number: 920XSY\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\u003eYamaha WR400F (1998-1999)\u003c\/li\u003e\n\u003cbr\u003e\t\u003cli\u003eYamaha YZ400F (1998-1999)\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e","brand":"ORO2U","offers":[{"title":"Default Title","offer_id":57151091507573,"sku":"56-W199+00C.WO","price":195.87,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5011\/6136\/files\/stock53907_1.jpg?v=1778374149","url":"https:\/\/www.smxoffroad.com\/es\/products\/piston-98-00-yzf-wr400f-92-hc-wossner-piston-kit-8639dc","provider":"SMXOFFROAD Ltd","version":"1.0","type":"link"}