Spec Clutch ST755 Stage 5 Race Clutch Kit - Full-Metallic Disc

The Spec Clutch ST755 Stage 5 Clutch Kit is SPEC's most powerful single-disc clutch solution, engineered specifically for high-output drag race and pulling applications, as well as builds requiring a slipper clutch or progressive torque-induced engagement. This is a purpose-built race clutch that demands race-level commitment — not intended for street-friendly daily use.

Key Features:

• Full-metallic iron disc with the highest available friction coefficient for maximum torque transfer
• High-clamp pressure plate delivers extreme clamping force suited to heavily modified engines
• Solid 12-rivet rigid hub — unsprung design for instant, aggressive engagement
• Heat-treated disc and hub assembly for superior strength and long-term durability under race conditions
• SFI approved construction meets sanctioning body requirements
• Kit includes pressure plate, iron disc assembly, release bearing, and installation tool kit
• Designed, hand-built, and tested in the U.S.A.

Important Note: The Stage 5's solid, unsprung hub engages instantly and aggressively. Unlike sprung hubs, it does not absorb drivetrain vibrations, resulting in clutch chatter under normal driving conditions. This kit is intended for race-only or competition use. Custom configuration is strongly recommended — consult a SPEC technical representative with details about your specific build and intended application before ordering.

Best For: Drag Racing, Pulling