SPEC Clutch SD88ST Super Twin Multi-Disc Clutch Kit ST-Trim

The SPEC SD88ST Super Twin is a professional-grade multi-disc clutch kit engineered for extreme performance applications handling 700 to 1500 lb-ft of torque. This ST-Trim version features carbon composite friction material with full-face sprung hub discs, delivering exceptional power transfer while maintaining near-stock drivability for both street and track use.

Advanced Engineering and Construction:

• Precision-machined from aircraft-grade aluminum and high-carbon billet steel to industry-leading 0.001-inch tolerances for perfect balance and smooth actuation
• Dampened, full-faced carbon-graphite friction discs provide consistent engagement and excellent wear characteristics
• All-billet construction ensures smooth, quiet operation even under extreme conditions
• Rebuildable design allows servicing by SPEC or end user with readily available replacement components

Key Features:

• No shimming or setup required—bolt-in installation with maintenance-free operation
• Complete kit includes billet flywheel and track-spec hardware
• ST-Trim configuration balances performance with streetability
• Suitable for street, drag racing, drifting, road racing, time attack, pulling, and rally applications
• Designed and hand-built in the USA with SFI approval

The Super Twin represents SPEC's flagship multi-disc technology, offering tremendous service life and near-OEM pedal feel while supporting power levels far beyond single-disc clutch capabilities. Available in multiple trim levels (SS, ST, E, ET) to match specific performance requirements.