{"product_id":"wiseco-81-50mm-black-anodized-piston-ring-compressor-sleeve","title":"Wiseco 81.50mm Black Anodized Piston Ring Compressor Sleeve","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003eRCS08150\u003c\/span\u003e | \u003cstrong\u003eUPC:\u003c\/strong\u003e 00193564176561\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eWiseco 81.50mm Black Anodized Piston Ring Compressor Sleeve RCS08150 for 1983-2012 250cc Motocross and ATV Bikes\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eWiseco ring compressor sleeves are forged in-house in the USA and deliver precision to compress rings smoothly during high-performance engine builds. Designed for 81.50mm bores on models like Kawasaki KX250 Suzuki RM250 Yamaha YZ250 Honda CR250R and Yamaha Banshee YFZ350 this tool prevents ring damage for tight seals and dependable power. Black anodized finish adds durability for repeated professional use.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eForged Construction:\u003c\/strong\u003e Made from 6061-T6 aluminum for high strength and resistance to deformation under pressure\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlack Anodized Finish:\u003c\/strong\u003e Provides corrosion protection and smooth surface to avoid scratching cylinder walls\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Sizing:\u003c\/strong\u003e 81.50mm (3.212 inch) outer diameter ensures exact fit in cylinder bores without play\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlotted Design:\u003c\/strong\u003e Evenly compresses rings as piston slides in reducing risk of flare or breakage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSA Made:\u003c\/strong\u003e In-house manufacturing guarantees tight tolerances for consistent results in every build\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eVerify cylinder bore measures exactly 81.50mm before use\u003c\/li\u003e\n\u003cli\u003ePair with assembly lube on rings for easiest insertion\u003c\/li\u003e\n\u003cli\u003eCompact 3.3 x 3.3 x 1 inch size stores easily in any toolbox\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional installation recommended.\u003c\/li\u003e\n\u003cli\u003eLightly coat inner sleeve and rings with engine assembly lube prior to sliding piston in\u003c\/li\u003e\n\u003cli\u003eWorks with standard Wiseco oversized piston kits for listed fitments\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eThis Part Fits\u003c\/h4\u003e\n\u003ctable border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1987-1996\u003c\/td\u003e\n\u003ctd\u003eKawasaki\u003c\/td\u003e\n\u003ctd\u003eKX250\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1996-2008\u003c\/td\u003e\n\u003ctd\u003eSuzuki\u003c\/td\u003e\n\u003ctd\u003eRM250\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1988-2005\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ250\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1983-1991\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCR250R\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1987-2012\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eBanshee YFZ350\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eWhy Choose Wiseco?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProven reliability in professional motocross and powersports racing\u003c\/li\u003e\n\u003cli\u003eEvery component forged and machined under one roof for flawless quality\u003c\/li\u003e\n\u003cli\u003eEngineering focused on high-rpm durability and exact tolerances\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What cylinder bore size does this sleeve fit?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Built for 81.50mm (3.212 inches) bores common in 250cc two-stroke motocross and ATV engines like those listed in fitment.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What material and finish are used?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Forged 6061-T6 aluminum with black hard anodizing for wear resistance and long-term protection.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Is special installation equipment required?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e No uses standard procedures tap gently with rubber mallet if needed and works with any ring expander tool.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eShipping \u0026amp; Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMethod:\u003c\/strong\u003e UPS Ground or USPS Priority Mail\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock - ships same or next business day\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Protective sleeve in 4 x 4 x 2 inch cardboard box\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.35 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Wiseco","offers":[{"title":"Default Title","offer_id":43758779990095,"sku":"WISRCS08150","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/wiseco-81_50mm-black-anodized-piston-ring-compressor-sleeve-wiseco.jpg?v=1767415308","url":"https:\/\/www.blackopsautoworks.com\/products\/wiseco-81-50mm-black-anodized-piston-ring-compressor-sleeve","provider":"Black Ops Auto Works","version":"1.0","type":"link"}