Spec Clutch SO115 Stage 5 Clutch Kit - Full-Metallic Racing Clutch

The SPEC SO115 Stage 5 Clutch Kit is SPEC's most aggressive single-disc clutch offering, purpose-built for heavily modified drag race and pulling applications. Featuring a full-metallic disc with the highest possible friction coefficient, this kit delivers maximum torque capacity where lesser clutches simply cannot hold.

Key Features:

• Full-metallic friction disc — highest friction coefficient available in SPEC's single-disc lineup
• High-clamp pressure plate — maximizes clamping force for extreme torque demands (adjustability available on select applications)
• Solid 12-rivet hub assembly — rigid, unsprung design engineered for race-level torque transfer
• Heat-treated disc assembly — enhanced strength and durability under sustained high-load conditions
• Includes bearing and installation tool kit

Intended Use:

• Drag racing
• Pulling competitions
• Extreme high-output builds requiring maximum clutch grip

Important Notes: The Stage 5 is not street-friendly. The solid, unsprung hub does not absorb drivetrain vibration and harshness the way a sprung hub does — this energy is transferred directly into the drivetrain. Clutch chatter is expected in low-speed or street driving conditions. This kit is best suited as a custom-configured order; consult a SPEC technical representative with details about your specific build and intended use before ordering.