JB Racing Aluminum Lightweight Flywheels

Cut your flywheel's mass by up to 66% for a quicker revving, more responsive car

Purchase JB Racing Aluminum Lightweight Flywheels

JB Racing Aluminum Lightweight Flywheels

These lightweight aluminum flywheels significantly lower the high rotating mass of your stock flywheel, allowing your engine to rev quicker.  Makes shifting faster and rev-matching much easier.

JB Racing is one of the best machine shops in the country, used by many professional race teams to do precision machining for engines and other driveline components.  Their BMW flywheels are made with the same precision and quality that these teams rely on, unlike typical units on the market.  Standard features include:

  • CNC machined flywheel, zero-balanced to eliminate vibration
  • Replaceable hardened steel clutch surface, bolted - not riveted on
  • Heli-coil inserts for pressure plate don't strip when clutch is replaced
  • Factory starter ring gear
  • Hardened steel gaul plate keeps the flywheel bolts from damaging flywheel
  • Flywheel bolts, pressure plate bolts, and dowel pins included

CAR

YEAR STOCK WEIGHT (lbs) NEW WEIGHT (lbs)
2002 68-76 16.5 8
318i 84-85 16.5 8
318i 92-98 27 9
320i 77-83 16.5 8
325, 325e 84-87 23.75 8.5
325i 87-91 16 8
323, 325, 328, 330 92-01 25 10
M3 87-92 18 8
M3 95-99 25 10
525i 91-95 25 10
Z3 1.8, 1.9 95-98 27 9
Z3 2.8 96-00 25 10
Z3 3.0, 3.2 96-99 25 10
5, 6, and 7 series 77-81 19 8.5
5 series 89-91 30 11
5 and 6 series 82-89 19 8.5
M5, M6 87-89 19 8.5
7 series (6-cyl only) 82-87 19 8.5
7 series (6-cyl only) 88-91 19 8.5

Purchase JB Racing Aluminum Lightweight Flywheels

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