520-130-265

BMW Fitments:

5 Series
E34 (89-95) > 540i
5 Series
E39 (97-03) > 540i

JB Racing Aluminum Lightweight Flywheels – 520-130-265

Transform your driving experience with JB Racing’s Aluminum Lightweight Flywheel for the early-model E39 540. By replacing the heavy stock dual-mass flywheel, this lightweight upgrade drastically reduces rotational mass, allowing the engine to rev faster for quicker shifts and effortless rev-matching.

Designed for high-performance street applications, this flywheel lowers both overall weight and Moment of Inertia (MOI), meaning your engine can spin more freely and transfer more power to the wheels—boosting both response and efficiency.

Precision-built from billet aluminum, each unit is a single-mass design that maintains all critical OEM dimensions for perfect fitment with factory clutch components.* Manufactured entirely in-house at JB Racing’s cutting-edge facility, these flywheels are designed, machined, balanced, and assembled to the highest standards—trusted by professional racing teams across the country.

Key Features:

• CNC-machined and zero-balanced to eliminate unwanted vibration

• Bolted-on replaceable hardened steel clutch surface (not riveted)

• Heli-coil inserts for long-lasting thread durability during clutch swaps

• Retains factory-style starter ring gear

• Hardened steel gall plate protects flywheel bolt area from damage

• Comes with flywheel bolts, pressure plate bolts, and 10mm captive dowel pins

• All pressure plate hardware uses metric threads

• Weighs just 13 lbs compared to the stock 38 lbs

• Proudly made in the USA