E34 M5 and Early M30 Engines Lightweight Alumnimum Flywheel

BMW Fitments
5 Series
E12 (77-81) > 528i
E12 (77-81) > 530i

Our JB Racing Aluminum Lightweight Flywheel greatly reduces the rotating mass compared to the stock flywheel of your E34 M5 or early M30-equipped vehicles (E12, E23, E24), allowing your engine to rev quicker. This enhances shifting responsiveness and simplifies rev-matching.

Designed specifically to boost performance in street-driven vehicles, JB Racing’s lightweight aluminum flywheels significantly lower static weight and Moment of Inertia (MOI). This results in reduced power needed to accelerate the flywheel, thereby delivering increased power efficiently to your wheels.

Each flywheel is precisely manufactured from premium billet aluminum with a single-mass design, closely replicating the OEM flywheel dimensions for compatibility with OE clutch components.* JB Racing flywheels are produced using state-of-the-art CNC equipment, with each unit meticulously designed, machined, assembled, balanced, inspected, and packaged at JB Racing’s facility.

JB Racing is renowned nationwide for its exceptional machining capabilities and is trusted by numerous professional racing teams for precision engine and drivetrain components. Their BMW flywheels match the exacting quality standards relied upon by top motorsports teams, setting them apart from typical market offerings.

Standard features:

• CNC-machined flywheel, zero-balanced for minimal vibration
• Replaceable hardened steel clutch surface, secured with bolts (not rivets)
• Heli-coil threaded inserts to prevent thread damage during clutch replacements
• Factory-compatible starter ring gear
• Hardened steel gaul plate to protect flywheel surface from bolt damage
• Includes flywheel bolts, pressure plate bolts, and captive design 10mm dowel pins
• Metric hardware for pressure plate included

Fitment:

• 1991-1995 BMW E34 M5 (S38 engine)
• 1977-1982 BMW E12, E23, E24 (early M30 engine only)

Made in the USA.