MB1-SPR4 kit features a Sport pressure plate for a nice upgrade. ACT Sport pressure plates use exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four-stage, heat-treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. ACT's 4-pad rigid race discs are made with high quality, ceramic friction materials. The chrome-moly hub is heat-treated for strength and durability. The lightweight, rigid design allows for quicker shifts and smooth, trouble-free service. With the 4-pad rigid race disc, engagement is harsher, but shifting is faster. The 4-pad rigid race disc is well-suited for the smaller disc sizes in smaller engines.

Feel: Light to moderate pedal effort, aggressive engagement, increased gear rattle;

Life: Moderate friction life, extended by ACT's exclusive diaphragm design, rigid design may increase spline wear;

Quality: Carefully engineered, precisely assembled, accurately balanced, uses select ceramic friction materials for high heat tolerance and maximum performance;

Recommended Use: Recommended for race use only;

ACT Difference: 100% clamp load tested and dynamically computer balanced for smooth high RPM reliability;

VIP Motorsport is an official dealer of Advanced Clutch Technology (ACT) Clutches in the UK.

Friction Surface Diameter (Inches)

8.8

Disc Type

Rigid Sport/Race Disc

Input Shaft Diameter (Inches)

0.875

Friction Surface Diameter (mm)

224

Item Description

Sport/Race Rigid 4 Pad

Product Weight (lbs.)

11.8

Pressure Plate Type

Sport

Torque Capacity Over OE

51%

Torque Capacity (ft/lbs.)

385

Warranty

12 Months

Spline Count

20

Disc Material

Ceramic

Pad Quantity

4