Ultra-Lite 5.5-Inch Two-Disc Clutch/Flywheel Assembly

The JB Racing Ultra-Lite Flywheel/Clutch Assembly is a pure race clutch and flywheel combination designed for BMW E85/E86 Z4 M racecars equipped with the S54 Engine. This setup is identical to the system used on World Challenge Touring cars. The assembly features a 5.5-inch, two-disc clutch from Powertrain, mounted to an extremely light flywheel. With a total weight of just 11 pounds and a significantly reduced moment of inertia, this combination allows for incredibly quick engine revs, making it ideal for competition. This product is strictly recommended for full race/track cars only, as the clutch cannot be slipped (e.g., for loading the car onto a trailer). The kit includes the flywheel, clutch, annular throw-out bearing, and all necessary hardware. Made in the USA.