Spec Clutch SB60PT Super Twin P-Trim Twin Disc Clutch Kit

The SPEC SB60PT Super Twin P-Trim is a high-performance twin-disc clutch kit engineered for street and track use in high-output vehicles. Rated to handle 700–1,500 ft-lbs of torque, the P-Trim variant is specifically designed to hold up to 910 ft-lbs at the flywheel, making it ideal for heavily modified platforms that demand exceptional holding power without sacrificing daily drivability.

Built with an all-billet construction, the Super Twin delivers a near-stock engagement feel while standing up to the demands of drag racing, drifting, road racing, time attack, rally, and pulling. The no-shimming, bolt-in design means straightforward installation with no special setup procedures required, and the system is completely maintenance-free in normal operation.

Key Features:

• Twin-disc (multiplate) design rated for 700–1,500 ft-lbs torque capacity (P-Trim: 910 ft-lbs)
• Aircraft-grade aluminum and high-carbon billet steel components
• CNC-milled to an industry-leading .001-inch tolerance for perfect balance and actuation
• Dampened, full-faced carbon graphite friction discs for smooth, consistent engagement
• Near-stock drivability with extreme torque holding capability
• No-shimming, no-setup required — true bolt-in installation
• Fully rebuildable by SPEC or the end user; replacement components always available
• Flywheel and track-spec hardware included in the kit
• Suitable for: street, drag, drift, road racing, time attack, pulling, and rallye

SPEC's Super Twin series is constructed with aircraft-quality aluminum and high-carbon billet steel, machined to a tolerance of .001 inch — an industry-leading standard that ensures perfect rotational balance and precise clutch actuation. The carbon graphite friction discs are dampened and full-faced for consistent, predictable engagement across all driving conditions. Organic, fiber, and full-metallic friction disc options are also available for different performance needs.

The SB60PT kit is fully rebuildable, ensuring long-term value and serviceability. SPEC offers rebuild services and replacement components for the life of the unit.