This clutch is a 2 disc 6 spring clutch used for the adult stock briggs flathead class. It may also be used with the Stock Animal but the 3 disc 4 spring is the clutch of choice for the Animal motor. This clutch is set with an approximate 4000 RPM engagement from the factory. Be sure to pick the sprocket size you would like from the list shown below.

Each Bully clutch includes 1 sprocket of your choice. Choose from the list of sprocket sizes you would like installed on your new Bully clutch with #35 chain