Replacement for Go Kart and Mini Bike,Lawnmower Tooth: 10; Work with #40/41/420 Chain(Chain Not included) 3/4″ bore designed Replacement for 6.5hp 212CC engines Made of high quality iron material,which is lightweight, portable, sturdy, durable, maximum torque, wear-resisting and fast heat disation Package included:1 x Centrifugal Clutch Introductions: If the centrifugal clutch is broken or malfunctioned, you should change it with a new one without any delays. Otherwise, it would endanger yourself, your friends or families. Under this circumstance, you should buy a centrifugal clutch and this Go Kart Centrifugal Clutch would be a great choice. Made of high quality material, this centrifugal clutch is reliable and durable in use. With fine workmanship, this centrifugal clutch can function well exactly as same as the original one. Specifications: