ZM2-HDR4 - HD/Race Rigid 4 Pad

Specifications: ZM2-HDR4 Clutch Kit for Mazda Miata

Item Description: HD/Race Rigid 4 Pad Clutch Kit

Product Weight (lbs.): 11

Torque Capacity (ft/lbs.): 310

Torque Capacity Over OE: 74%

Disc Material: Ceramic

Clutch Disc Diameter (Inches): 8.8

Clutch Disc Diameter (Millimeters): 224

Input Shaft Diameter (inches): 0.9375

Pressure Plate Type: Heavy Duty

Warranty: 12 Months (view details)

Description: The ZM2-HDR4 kit features ACT's esteemed Heavy Duty pressure plate, leveraging an exclusive diaphragm design to enhance clamp load, diminish deflection, and optimize clutch lifespan. Each diaphragm undergoes a rigorous four-stage heat-treating process, ensuring unparalleled performance. Precision cover stampings deliver rigidity and consistency. ACT's 4-pad rigid race discs are meticulously crafted with premium ceramic friction materials. The chrome-moly hub is heat-treated for enhanced strength and durability. The lightweight, rigid design facilitates swift shifts and seamless operation. While engagement with the 4-pad rigid race disc may be more aggressive, shifting becomes notably faster. This disc is particularly well-suited for smaller disc sizes in smaller engines.

Description:

• 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; utilizes select ceramic friction materials for high heat tolerance and maximum performance
• Recommended Use: Designed for race use only
• ACT Difference: Rigorously clamp load tested and dynamically computer balanced for smooth high RPM reliability

Vehicle Fitment: The ZM2-HDR4 Clutch Kit is specifically engineered for the following Mazda Miata models:

• 1990-1997: Base, SE, LE
• 1994-2005: M Edition
• 1997-2003: STO, Shinsen
• 1999-2000: 10th Anniversary, LS, SE
• 2001-2005: LS, Mazdaspeed