E30 325e -3/’86 Aluminum Lightweight Flywheel

BMW Fitments:
3 Series
E30 (84-91) > 325e

Our JB Racing Aluminum Lightweight Flywheel significantly reduces the rotating mass compared to your stock -3/86 E30 325e flywheel, enabling quicker engine revving. This allows for faster shifting and easier rev-matching.

Specifically designed to enhance performance in street-driven vehicles, JB Racing’s lightweight aluminum flywheels reduce static weight and Moment of Inertia (MOI). This lower inertia means less power is required to accelerate the flywheel, allowing more power to be efficiently delivered to the wheels.

Manufactured from high-quality billet aluminum, these flywheels feature a precision “single-mass” design that duplicates critical OEM dimensions, ensuring compatibility with OE clutch components.* JB Racing produces these flywheels using state-of-the-art CNC equipment, maintaining rigorous standards throughout the design, machining, assembly, balancing, inspection, and packaging processes.

JB Racing is nationally recognized for its superior craftsmanship and precision machining services, trusted by numerous professional racing teams. Their BMW flywheels exemplify the same exceptional quality and reliability relied upon by top motorsport teams, distinguishing them from standard market alternatives.

Key features:

• CNC-machined and zero-balanced to eliminate vibration
• Replaceable hardened steel clutch surface securely bolted (not riveted)
• Heli-coil threaded inserts to prevent stripping during clutch replacements
• Factory-spec starter ring gear
• Hardened steel gaul plate protects flywheel from bolt damage
• Flywheel bolts, pressure plate bolts, and captive 10mm dowel pins included
• All metric pressure plate hardware
• Significantly lighter at 8 pounds compared to the 24-pound stock unit