red dragon parts CENTRIFUGAL CLUTCH 5/8 BORE #35 CHAIN 11 Tooth for Go Kart Mini Bike Engine 5/8 BAR Important: Please measure your output shaft and chain pitch before ordering High Quality Clutch 5/8" Bore w/ integrated key Accepts 35# Chain (3/8" chain pitch) 11 Tooth Sprocket 1 year warranty