{"product_id":"ref-56-w4966-a-wo-hc","title":"WOSSNER 77mm HC PISTON KIT A, YAMAHA WR250F 18-19, YZ250F 16-18, YZ250FX 17-19","description":"\u003cbody\u003e\n\n\n\n\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003eWossner high-compression forged pistons are built for durability and thermal efficiency, designed to facilitate effective heat transfer and uniform expansion under pressure. The elliptical structure reduces localized stress, preventing piston collapse. This high-compression piston kit features a 77.00mm bore (76.95mm actual size) and a 14.4:1 compression ratio, made for Yamaha YZ 250 F models from 2016 to 2018.\u003c\/p\u003e  \u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eForged for enhanced strength\u003c\/li\u003e \t\u003cli\u003eElliptical design for uniform thermal expansion\u003c\/li\u003e \t\u003cli\u003eHigh-compression specification\u003c\/li\u003e \t\u003cli\u003eMade in Germany\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eBore Size: 77.00mm (actual 76.95mm)\u003c\/li\u003e \t\u003cli\u003eCompression Ratio: 14.4:1\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCross-Reference OEM Part Numbers\u003c\/strong\u003e\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003e1SM-11631-10-00\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eVehicle Fitments\u003c\/strong\u003e\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eYamaha YZ 250 F 2016–2018\u003c\/li\u003e \u003c\/ul\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\n\u003c\/body\u003e","brand":"Wossner","offers":[{"title":"Default Title","offer_id":55594843439478,"sku":"REF 56-W4966.A.WO.HC","price":171.93,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0917\/7032\/3318\/files\/stock94151_1.jpg?v=1783536116","url":"https:\/\/www.awmotorcycleparts.co.uk\/products\/ref-56-w4966-a-wo-hc","provider":"AW Motorcycle Parts","version":"1.0","type":"link"}