Centrifugal Go Kart Clutch 3/4\" Bore 12 12T for 35 Chain,for
1 Piece Centrifugal Clutch (3/4" Bore 12 Tooth). The Centrifugal Clutch 3/4" needs to be oiled before use. Don't put oil inside the clutch holes: The holes on the drum are to let the hot air out of the clutch.