Features:This torque converter assembly is complete Torque Converter with all parts necessary to mount.This clutch will help you get more power of your small engine by reducing engine load with overdrive. A torque converter acts similar to a transmission, allowing higher speeds of your small engine, and smoother acceleration. Smallengine Torque Converter clutches are heavily used in riding lawnmowers,small tractors, go karts, mini bikes, and waterski winches.Great accessory for Go Kart.Specifications:Sprocket:#420Drive clutch bore: 19mm (3/4")Belt: Asymmetrical typeTop width: 19mm(3/4")Sprocket teeth: 10 teethEngagement range: 2350200 RPMTAV30 TAV20For Go-karting OnlyPackage Included:1 x Set of Torque Converter Assembly