ACT 16-17 Mazda MX-5 Miata ND HD/Race Rigid 4 Pad Clutch Kit

Brand: ACT

Product Code: ZM10-HDR4

Availability:In stock


Warranty 12 Months
Product Weight (lbs.) 25.4
Disc Type Rigid Race Disc
Disc Material Ceramic
Pad Quantity 4
Pressure Plate Type Heavy Duty
Input Shaft Diameter (Inches) 15/16
Torque Capacity Over OE 87%
Torque Capacity (ft/lbs.) 399
Friction Surface Diameter (Inches) 8.8
Friction Surface Diameter (mm) 224
Spline Count 22
Alignment Tool Included AT05
Flywheel Included 600870
Release Bearing Included RB110
Pilot Bushing Included PB1030
ItemCodeDesc HD/Race Rigid 4 Pad

SB5-HDR4 kit features ACT's most popular Heavy Duty pressure plate. ACT 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.

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