Brand: Advanced Clutch Technology Manufacturer's Part Number: HC5-XXR6 Part Type: Clutch Kits Product Line: ACT Maxx Xtreme Clutch Kits Automotive Fittings Part Number: ACL-HC5-XXR6 UPC: 00842385015176 Clutch Usage: Performance Clutch Disc Quantity: 1 Flywheel Included: No Input Spline Quantity: 20 Input Shaft Diameter: 0.875 in. Disc Diameter (in.): 8.300 in. Disc Diameter (mm): 212mm Disc Material: Ceramic Disc Style: 6-paddle Hub Style: Solid Pressure Plate Style: Diaphragm Throwout Bearing Included: Yes Alignment Tool Included: Yes Pilot Bushing Included: Yes Pilot Bushing Material: Steel roller bearing Counterweight Assist: No Mounting Hardware Included: No Quantity: Sold as a kit. Description: For racing, you need a clutch that will enable quick shifts and hard slips to advance you across the finish line. ACT Maxx Xtreme clutch kits maximize the road to high performance by meshing solid products, outstanding quality, and exceptional value. These Maxx Xtreme clutch kits with racing discs are based on solid engineering principles. They afford a clamp load increase of 70 to 150 percent with a stiffer pedal feel, and many of these new, not rebuilt, units are SFI-certified to ensure safety. You've spent long hours building your engine; get it in motion with the smooth, precise feel and longer life of the ACT Maxx Xtreme clutch kits.