Wiseco
CK220
Wiseco (CK220) 82.0mm 13.5:1 Compression 276cc Big Bore Cylinder Kit
Pistons
Fits: Honda CRF250R 2004-09
Kit comes complete with a big bore cylinder, ArmorGlide skirt coated piston, and complete top end gasket kit to make your rebuild simple with no case modifications are required
Dedicated forgings are used for superior strength to weight ratio utilizing aerospace alloy with a dome designed for improved flame travel and detailed skirt shape and profiles for stability and smooth operation in the cylinder bore
Each Wiseco piston is designed with the proper installed clearance to produce the most power, least wear, and best seal at running temperature, for each application
Utilizes the new ArmorGlide skirt coating, the ultimate in toughness, lubrication, and bond technology working together to minimize friction, maximize horsepower, providing improved wear resistance
Wiseco big bore kits are perfect for those looking to create the ultimate high performance machine. All-in-one solution saves time and money. Wisecoâs detailed skirt shapes and profiles are very specific to each application. Variable cam programming software developed in house allows Wiseco to produce high-performance shapes unique to only Wiseco. The skirt shape (barrel/cam) is one of the most functional areas on the piston, and provides stability and smooth operation in the cylinder bore. Stability is important for proper ring seal, reduced friction, and quiet operation. Each skirt shape is designed for a specific running clearance, based on coefficient of thermal expansion of the piston alloy. Some forging alloys expand more than casting alloys, but each Wiseco piston is designed with the proper installed clearance to produce the most power, least wear, and best seal at running temperature, for each application. Comparing installed clearances on cast versus forged parts is not indicative of the running clearance at temperature. Wiseco engineers have a strong background in all forms of racing applications, and produce the best shapes and designs in the industry. Fits: Honda CRF250R 2004-09. Kit comes complete with a big bore cylinder, ArmorGlide skirt coated piston, and complete top end gasket kit to make your rebuild simple with no case modifications are required.
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