Spec Clutch SC10ST Super Twin Multi-Disc Clutch Kit ST-Trim Carbon Graphite

The Spec Clutch SC10ST Super Twin Multi-Disc Clutch Kit (ST-Trim) is engineered for high-output street and track vehicles producing extreme horsepower and torque. Rated to handle 700–1,500 lb-ft of torque, this twin-disc clutch system delivers the holding power of a race-ready drivetrain without sacrificing everyday street manners.

Built entirely from aircraft-grade aluminum and high-carbon billet steel, every component is precision-machined to an industry-leading .001-inch tolerance for perfect rotational balance and smooth, consistent actuation. Friction is generated by dampened, full-faced carbon graphite discs that provide progressive, confident engagement across all driving conditions.

Key Features:

• Handles 700–1,500 lb-ft of torque — ideal for heavily modified street and race builds
• Near-stock pedal feel and drivability despite massive torque capacity
• No-shimming, no-setup bolt-in installation for straightforward fitment
• All-billet construction for smooth, quiet operation
• Aircraft-grade aluminum and high-carbon billet steel machined to .001-inch tolerances
• Dampened, full-faced carbon graphite friction discs (ST-Trim)
• Organic, fiber, and full-metallic disc options also available
• Fully rebuildable by SPEC or the end user; replacement components always available
• Maintenance-free operation under normal use
• Billet aluminum flywheel and track-spec hardware included
• SFI approved construction

Suitable Driving Applications: Street, drag racing, drifting, road racing, time attack, pulling, and rallye.

The SC10ST Super Twin delivers a rare combination of race-level torque capacity and street-friendly driveability, backed by SPEC's commitment to rebuildable, long-lasting performance clutch systems.