Mag Force Strapped 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) and double disc (900ft tq) configurations to meet the harshest needs in the industry. These units rely on a strapped drive actuation system where the floater plate is bolted to the inside of the cover with spring steel drive straps in 3 locations, making for a clean and quite release in a racing or high horsepower street application. These Mag Force units also offer bolt on external balance weights for most applications. Includes Aluminum Flywheel