Mag Force Pin Drive clutch kits are the perfect choice for racers looking for a lightweight, high torque capacity unit. They are designed to be used for oval track, road racing and dry lakes applications. These units are offered in single disc (500ft tq), double disc (900ft tq) and triple disc (1500ft tq) configurations to meet the harshest needs in the industry. These units rely on a pin drive actuation system where the floater plate slides on 6 evenly spaced pins for quick release in a racing application. These Mag Force units also offer bolt on external balance weights for most applications. Includes Aluminum Flywheel