With higher and higher horsepower, stronger clutches are needed. However, it can be tough to find something that will handle the amount of power while still being reasonable on your left leg. Clutch Masters' multi-plate clutches are designed to address this and more. The cover plate is made out of machined aluminum, which reduces deflection and strengthens the clutch to handle more power. Even with a tough plate, this multi-plate clutch kit still engages and disengages quickly and smoothly using Clutch Masters' unique QR System. This system incorporates 3 spring bolts that will reduce the pressure needed to operate the clutch while also reducing clutch noise and chatter by up to 50%!
The two discs in each of these multi-plate clutch kits are made of ceramic or fiber tuff, or a combination of both depending on the application (please see application notes for your BMW Z4). Most kits also includes a steel or aluminum flywheel as well (please see application notes for your BMW Z4). Most applications are available in a smaller and more aggressive 725 series or a larger and easier 850 series. Both options are on average 50% lighter than stock assemblies.
Clutch Masters 725 Series Clutch Kit Information:
- Clutch is 7.25" in diameter for the quickest engagement possible.
- 300-350% increased holding capacity.
- Holds a huge amount of torque with much less clutch pedal pressure than an equivalent single-plate clutch.
- Designed mainly for race applications, but can be used on the street as well. Handles track abuse.
- Most kits include a steel or aluminum flywheel, depending on your application.
- Race version uses two rigid ceramic discs. Race/Street version uses one rigid ceramic and one rigid fiber tough disc.
- Billet aluminum QR System cover plate.
Clutch Masters 850 Series Clutch Kit Information:
- Clutch is 8.5" in diameter for easier engagement and even higher torque capacity than the 725 Series. Engagement will not be quite as fast as with the 725 Series though.
- 350-400% increased holding capacity.
- Holds a huge amount of torque with much less clutch pedal pressure than an equivalent single-plate clutch.
- Designed mainly for race applications, but can be used on the street as well. Handles track abuse.
- Most kits include a steel or aluminum flywheel, depending on your application.
- Race version uses a spring ceramic disc and a rigid ceramic disc. Race/Street version uses one spring ceramic and one rigid fiber tough disc.
- Billet aluminum QR System cover plate.
Clutch Masters 1000 Series Clutch Kit Information:
- Clutch is 10" in diameter for easier engagement and even higher torque capacity than the 850 Series.
- Offers the highest holding capacity.
- Holds a huge amount of torque with much less clutch pedal pressure than an equivalent single-plate clutch.
- Designed mainly for race applications. Handles track abuse.
- Most kits include a steel or aluminum flywheel, depending on your application.
- Typically uses a spring ceramic disc and a rigid ceramic disc.
- Billet aluminum QR System cover plate.
Bearing and Alignment Tool Information:
- Pilot bearing/bushing included with many kits (please call or email us if you want details for your specific application).
- Release bearing/throw out bearing included with many kits (please call or email us if you want details for your specific application).
- Alignment tool included for all kits where applicable.
Assembly Notes: Ensure to follow the directions on how to assemble the clutch. Discs and plates have to go in the correct direction for proper assembly and function.
Break-in Notes: Please refer to the manufacturer's specific instructions for proper break in details for your application.
