Go kart tractor mini bike centrifugal clutch 12 tooth, 3/4″ bore, use 35# chain. The clutch 3/4″ bore 12 tooth 35 chain fits Honda GX160, GX200, GX 140, GX120, GC160, GC190, for Harbor Freight Greyhound 196cc and Harbor Freight Predator 212cc Also fits any other engines with 3/4 crank shaft and 3/16?? key way, most 5.5 HP clones, 6.5 HP clones and 4-7HP motors. The Clutch also fits for 2 – 6.5 HP 168 188 gasoline engines for generator and go kart single wheel drive karts. Predator 2.8 HP 97cc engine with 3/4 inch output shaft with standard keyway. Centrifugal Clutch 3/4″ Bore #35 Chain 12T For Go Kart Mini Bike Engine 3/4 Bar Specifications: Material: IronClutch Bore: 3/4″Sprocket: 12 toothEngagement Speed: 2200??200 RPMFitment: Mini Bike, Go KartRecommended Engine: 2HP – 6.5HP, 3/4″ Shaft Fits: This Clutch Will Fit 2 – 6.5 HP Engines Honda GC160, GC190, GX120, GX140, GX160, GX200Also will fit Briggs & Stratton and 2 –