Spec Clutch SD08SST-3 Super Twin SS-Trim Multi-Disc Clutch and Flywheel Kit

The Spec Clutch SD08SST-3 Super Twin SS-Trim is a high-performance multi-disc clutch and flywheel kit engineered for vehicles producing extreme horsepower and torque. Rated to handle 700–1,500 ft-lbs of torque, the Super Twin is purpose-built for drivers who demand maximum holding power without sacrificing everyday street manners. The SS-Trim disc configuration uses hybrid discs with Kevlar lining on one side and semi-metallic lining on the other, offering an excellent balance of grip, modulation, and longevity for street, drag, and road racing applications.

Constructed entirely from aircraft-grade aluminum and high-carbon billet steel, every Super Twin assembly is precision-milled to an industry-leading .001-inch tolerance for perfect balance and smooth, consistent actuation. Dampened, full-faced carbon-graphite discs provide reliable friction performance across a wide range of operating conditions, keeping the assembly smooth and quiet even under hard use.

Key Features:

• Torque capacity: 700–1,500 ft-lbs — ideal for high-output builds
• SS-Trim disc configuration: hybrid Kevlar / semi-metallic dual discs
• All-billet construction — aircraft-grade aluminum and high-carbon billet steel
• Precision-milled to .001-inch tolerance for perfect balance and actuation
• Dampened, full-faced carbon-graphite friction discs
• Near-stock drivability with no chatter or aggressive engagement required
• No shimming or setup required — direct bolt-in installation
• Maintenance-free operation with tremendous service life
• Fully rebuildable by SPEC or the end user; replacement components always available
• Flywheel and track-spec hardware included in kit
• SFI approved clutch kit and flywheel

Suitable for all performance driving disciplines including street, drag racing, drifting, road racing, time attack, rally, and pulling. Organic, fiber, and full-metallic disc options are also available within the Super Twin lineup for different application demands.