{"product_id":"forged-piston-kit-47-52mm-bore-yamaha-yz85","title":"Forged Piston Kit, 47.52mm Bore, Yamaha YZ85","description":"The Wossner 8104DC is a forged piston kit engineered for enhanced durability and performance in two-stroke engines, specifically designed for Yamaha YZ85 models from 2002 to 2019. Its construction utilizes forged materials in Germany, ensuring maximum strength and reliability.\n\nThis piston kit features a precision elliptical profile and a permanent skirt coating. These design elements work together to reduce friction and piston rock, leading to quieter operation and improved performance. The elliptical shape also promotes a uniform bearing surface and minimizes the risk of piston collapse under thermal expansion.\n\nKey specifications include a bore of 47.52mm (actual bore: 47.47mm), an engine displacement of 85 cm³, a stroke of 47.80mm, and a clearance of 0.05mm. The compression ratio is designed for 2-stroke applications (compatible with both Wossner and OEM specifications), with a compression height of 26.00mm. This kit includes the piston, rings, pin, and clips, with part numbers provided for all associated components: Lock Part Number: CW14, Pin Part Number: WP058, Ring Set Part Number: RSB4750, and Con Rod Kit Part Number: P2008.","brand":"Wossner","offers":[{"title":"Default Title","offer_id":52866780070200,"sku":"8104DC","price":88.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687415652.jpg?v=1787909627","url":"https:\/\/store.motormia.co\/products\/forged-piston-kit-47-52mm-bore-yamaha-yz85","provider":"MOTORMIA","version":"1.0","type":"link"}