Spec Clutch SN85SST-2 Super Twin SS-Trim Twin Disc Clutch Kit

The Spec Clutch SN85SST-2 Super Twin SS-Trim is a high-performance twin disc clutch kit engineered for street and track use in high-output applications. Designed to handle 700–1,500 ft-lbs of torque, this kit delivers the holding power of a race clutch while maintaining near-stock pedal feel and drivability — making it equally at home on the daily commute or the drag strip.

Constructed entirely from aircraft-grade aluminum and high-carbon billet steel, every component is precision-machined to an industry-leading .001-inch tolerance for perfect balance and smooth actuation. Friction is provided by dampened, full-faced carbon graphite discs that engage cleanly and quietly — eliminating the harshness and chatter common to lesser twin-disc setups. Organic, fiber, and full metallic disc options are also available.

Key Features:

• Handles 700–1,500 ft-lbs of torque — ideal for heavily modified street and race applications
• Near-stock drivability with smooth, quiet engagement
• Full billet construction — aircraft-grade aluminum and high-carbon billet steel
• Precision-machined to .001-inch tolerance for perfect balance
• Dampened, full-faced carbon graphite friction discs
• No shimming or setup required — true bolt-in installation
• Maintenance-free operation under normal use
• Fully rebuildable by SPEC or the end user; replacement parts and rebuild services available
• Flywheel and track-spec hardware included
• SFI-approved for sanctioned competition use

The Super Twin SS-Trim is suited for a wide range of performance driving disciplines including street, drag racing, road racing, drifting, time attack, rallye, and pulling. All SPEC Super Twin components are designed, hand-built, and tested in the U.S.A.