Accepts 35# Chain (3/8" chain pitch) 11 Tooth Sprocket Racing Centrifugal Clutch. Go Kart Tractor Mini Bike Cyntrifical Clutch 5/8" Bore. The Clutch fit 2 - 6.5 HP 168 188 Gasoline Engines for Generator and go kart, Single Wheel Drive Karts with Tires no larger than 15" Tall. Set Screws Not Included, Bi-directional operation, Easy to install. Set screws and chain NOT included.
