Spec Clutch SD08SST Super Twin SS-Trim Multiplate Clutch and Flywheel Kit

The SPEC SD08SST Super Twin SS-Trim is a high-performance multiplate clutch and flywheel kit engineered for street and track vehicles producing extreme power levels. Rated to handle 700–1,500 ft-lbs of torque, the Super Twin delivers the capability of a race clutch with near-stock engagement feel, making it equally at home on the street or on the race circuit.

Built entirely from billet materials, the SD08SST features aircraft-grade aluminum and high-carbon billet steel components machined to an industry-leading .001-inch tolerance for exceptional rotational balance and precise actuation. Friction is provided by dampened, full-faced carbon-graphite discs in the SS-Trim configuration, offering outstanding drivability and long service life under demanding conditions.

Key Features:

• Torque capacity: 700–1,500 ft-lbs — suited for high-horsepower street, drag, drift, road race, time attack, pulling, and rally applications
• SS-Trim: dampened, full-faced carbon-graphite friction discs for smooth, street-friendly engagement
• All-billet construction — aircraft-grade aluminum and high-carbon billet steel machined to .001-inch tolerance
• No shimming or setup required — true bolt-in installation
• Maintenance-free operation with smooth, quiet performance
• Fully rebuildable by SPEC or the end user; replacement components and rebuild services available
• Billet aluminum flywheel and track-spec hardware included
• Organic, fiber, and full-metallic friction disc options also available
• SFI Approved — designed, hand-built, and tested in the USA

The SPEC Super Twin platform is ideal for performance builds that demand race-level torque capacity without sacrificing daily drivability. The infinitely rebuildable design and availability of replacement components make the SD08SST a long-term investment for serious performance enthusiasts.