ACT HD/Race Rigid 4 Pad Kit HC4-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. Features Product Weight (lbs.): 9.7 Torque Capacity (ft/lbs.): 300 Torque Capacity Over OE: 0.96 Pilot Bushing Included: Yes Pressure Plate Type: Heavy Duty Release Bearing Included: Yes Clutch Disc Diameter (in.): 8.3 Clutch Disc Diameter (mm): 212 Disc Material: Ceramic Input Spline Quantity: 20 Input Shaft Diameter (in.): 0.875 Alignment Tool Included: Yes Applications 1989-1991 Honda Civic 1989-1991 Honda CRX What’s In The Box? Clutch Friction Disc (4212004) Clutch Alignment Tool (AT20) Clutch Pressure Plate (H023) Clutch Pilot Bearing (PB1002) Clutch Release Bearing (RB427) References Installation Instructions Warranty Manufacturer 1 Year Warranty