Type:Centrifugal Go Kart Engine Clutch Heavy Duty 10T Sprocket for 40/41/420 Chain 212cc Predator Belt Drive Centrifugal Clutch Fits 2 – 6.5HP, Up to7HP Small Engines, HONDA GC160, GC190, GX120, GX140, GX160, GX200 3/4″ Bore Designed for 2-7Hp 212 Predator Engines Clutch Performance Parts If you are satisfied with our products and services, please give us a five-star rating, thank you! Specifications: Outside diameter: 3/4″ Total width: 3″ Clutch back to sprocket:2 1/2″ Fits: 2-6.5hp Honda Honda Cloned Engines GC160, GC190, GX120, GX140, GX160, GX200 Perfect For Go Kart Minibike Baja Mini Bike MB165 MB200 (Baja Heat, Mini Baja, Baja Warrior) Common clutch for 3.5-7hp engines using #40/41/420 chain Clutch does not need set screws as long as the end of the crankshaft is threaded to accept a bolt. Most go kart clutches are held onto the shaft with a bolt and larger washer. Extra washers if needed are used on the crankshaft to space clutch.go