Introduction

Heavy Duty /Race 4-PadRigid Clutch Kit by ACT

ZM10-HDR4 kit features ACT’s most popular Heavy Duty pressure plate and their 4-pad, rigid race disc.

CT Heavy Duty 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.

Features

• 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

Please Note: 225mm upgrade. Must use ACT flywheel (included in kit).

Applications

• 2016 – 2018 Mazda MX-5 Miata (ND)

Specifications

• Torque Capacity (ft/lbs.): 399
• Torque Capacity Over OE: 87%
• Spline Count: 22
• Spline Size (in.): 15/16
• Disc Diameter (in/mm): 8.8/224
• Product Weight (lbs.): 25.4

What’s In The Box?

• 1 – Heavy Duty Pressure Plate
• 1 – 4-Pad Rigid Race Disc
• 1 – ACT Flywheel
• 1 – Release Bearing
• 1 – Pilot Bearing
• 1 – Alignment Tool

References

• Installation Instructions

Warranty

• ACT 1 Year Limited Warranty