BMW E85 JB Racing Lightweight Flywheels

has manufactured and supplied high quality lightweight aluminum flywheels to the performance industry for over 25 years. JB is the original designer and manufacturer of the BMW E36 aluminum flywheel. JB Racing is constantly expanding their flywheel line to include the latest performance applications such as; Mini Cooper and BMW E46 325/330, and Z4 utilizing the new 6-speed (SMG) transmission. ALL of the current dual-mass replacement flywheels are designed to accommodate most of the common sprung-hub clutch discs to minimize the gearbox “rattle.” Sachs, S.P.E.C., Clutch Net, and others manufacture sprung-hub discs that will clear in the center hub cavity of these flywheels.

All of their flywheels are designed, manufactured, and assembled in-house at their Florida facility which allows to maintain stringent quality control. You simply cannot buy a higher quality lightweight aluminum BMW flywheel… at any price!

Available for the following BMWs: (click icon to change BMW)

E36, E46, Z3, Z4 HD Clutch and Flywheel Kit (more info)
This lightweight aluminum flywheel w/ Heavy Duty "sprung-hub" clutch package is the best-engineered solution for the BMW E36, E46, Z3, and Z4 models. Instead of picking a clutch from another car that may or may not work at all, the engineers at JB Racing have taken all of the guess work out of this upgrade and incorporated a Sachs HD sprung hub clutch with the correct pressure plate and combined it with our most-popular aluminum lightweight flywheel. The Sachs HD clutch disc has a sprung hub to minimize noise and vibration and organic linings to give the feel and engagement of a stock clutch. Mixing and matching of the incorrect clutch, pressure plate, and flywheel components can lead to inconsistent engagement and feel -- why make your clutch feel worse?

In addition, the Sachs HD pressure plate will clamp with greater force -- allowing approximately 350 ft-lbs of torque, which makes it an obvious upgrade from the stock clutch kit. And with the aluminum flywheel weight savings is substantial over the stock dual-mass flywheel - which allows your motor to spool up faster and transmit more HP to the ground.

Because Sachs is an OE supplier to most German cars, replacement parts are just a phone call away. This kit uses the stock throw-out bearing (included in the price!).

BMW Fitment/Applications:
1992-1999 E36 3 Series 325i, 325is, 328i 328is, 323is
1995-1999 E36 M3
1999-2005 E46 3 Series 323i, 323Ci, 325i, 325Ci, 328i, 328Ci, 330i, 330Ci (with 5-speed transmission)
1997-2002 Z3 Roadster/Coupe with 2.3, 2.5, 2.8 or 3.0 engine
1998-2002 MZ3 M Roadster & M Coupe
2003-2005 Z4 Roadster/Coupe Z4 2.5, Z4 3.0 (5-speed transmission)

Part #: 520-010S--

Price: $1,532.90 (USD)

E46 330, Z3 3.0 6 SPEED Lightweight Flywheel (more info)
E46 330, Z3 3.0 6 SPEED Lightweight Flywheel has the factory BMW pilot bearing pre-installed into the center. 11LBS compared to the 25LB+ factory flywheel will make a huge improvement!

Part #: 520-190-240

Price: $595.00 (USD)

Grand Am Cup Legal Lightweight Steel Flywheel - E46 M3, 330i, MZ3 Coupe, & Z4 3.0i (more info)
Grand-Am Legal Lightweight Steel Flywheel - E46 M3, 330i & Z4 3.0i. This lightened steel flywheel is specifically designed (and approved) for use in Grand-Am Cup. It fits BMW E46 M3 and Z3 Coupe (GS Class); E46 330 and Z4 models (ST Class) that are accepted for competition in the Grand-Am KONI/Continental Challenge series. It replaces the OEM dual-mass flywheel (25.0 lbs) and weighs 20.0 lbs, for a weight savings of 5.0 lbs. Fully complies with the weight restrictions stipulated in Section 7-13.6 of the 2007 Grand-Am regulations.

Designed to utilize an OEM or HD E36 M3 pressure plate with the appropriate stock diameter 240mm clutch disc and throw-out bearing. Provides improved throttle repsonse and performance.

Note:
All late model 6-speed applications (except E46 M3) require a special flywheel mounted pilot bearing, which adds $25.20 to the price if it pertains to your application. This bearing will come installed prior to shipment.

Part #: 520-010-240SGA

Price: $868.00 (USD)

JB Racing Aluminum Lightweight Flywheel for N51/N52 Engines (E60, E90, E82, E85, E89) (more info)
Lightweight flywheel designed to work with the OEM factory clutch. You can gain more power and acceleration by replacing the heavy steel dual-mass flywheel with this lighter piece made from aluminum. This flywheels weighs 12lbs compared to the stock weight 24lbs!

Applications for N51/N52 Engines:
2006-later E60 5-series - 525i, 528i, 530i
2006-later E90, E91, E92, E93 3-series - 325i, 328i, 330i
2007-later E82, E88 1-series - 125i, 128i
2006-later E85, E86 Z4 Coupe and Z4 Roadster - Z4 3.0i, Z4 3.0si
2009-later E89 Z4 Roadster - Z4 3.0i

Part #: 520-200-240

Price: $630.00 (USD)