Spec Clutch SN35ST Super Twin ST-Trim Multi-Disc Clutch Kit

The SPEC SN35ST Super Twin ST-Trim Multi-Disc Clutch Kit is engineered for street and track use in high-output vehicles producing extreme torque in the 700–1,500 ft-lb range. Designed to handle serious power without sacrificing daily usability, this twin-disc system delivers near-stock pedal feel and engagement while standing up to the demands of the most aggressive motorsport applications.

Built with an all-billet construction, the Super Twin is precision-machined from aircraft-grade aluminum and high-carbon billet steel, milled to an industry-leading .001-inch tolerance for perfect rotational balance and consistent actuation. The result is a clutch assembly that is remarkably smooth and quiet — even under extreme load.

Key Features:

• Torque capacity: 700–1,500 ft-lbs — suited for heavily modified street and race builds
• Aircraft-grade aluminum and high-carbon billet steel construction milled to .001-inch tolerances
• Friction provided by dampened, full-faced carbon-graphite discs
• Disc material options available: organic, fiber, and full metallic
• No shimming or setup required — true bolt-in installation
• Maintenance-free operation under normal use
• Fully rebuildable by SPEC or the end user; replacement components and rebuild services are always available
• Rebuildable billet flywheel included
• Track-spec hardware included in the kit

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

The SPEC Super Twin ST-Trim is the solution for builds that have outgrown traditional single-disc clutches and demand a proven, rebuildable multi-disc system with exceptional longevity and broad disc material versatility.