[10 Tooth Centrifugal Clutch]3/4inch bore size, engagement speed 2300??300 RPM. Fit for #40/41/420 chain, 2 – 6.5HP, up to 7HP small engines [Product Material] These go kart centrifugal clutch is made of quality iron material, which is sturdy and durable, maximum torque, wear-resisting and fast heat disation [Applicable Models]The 3/4 inch centrifugal clutch is suitable for small engines Honda GX160, GX200, GX 140, GX120, GC160, GC190, and Harbor Freight Greyhound 196cc and Harbor Freight Predator 212. [Compatiable]The centrifugal go kart clutch is perfect for Go Kart Baja Mini Bike, including Baja Heat, Mini Baja and the Baja Warrior.Also fits any other engines with 3/4 crank shaft and 3/16?? key way. [Product Package] 1 x 10 Tooth Bore Go Centrifugal Clutch,1 x #40/41/420 Chain, 1 x Connecting Link Go Kart Clutch and Chain Fits for Go Kart and Mini Bike, Lawnmower and Fun Kart This Go Karts Centrifugal Clutch Also Compatiables to small engines Honda GX160, GX200, GX