Spec Clutch SU33MTR Mini Twin R-Trim Twin Disc Clutch Kit

The Spec Clutch SU33MTR is a Mini Twin R-Trim twin disc clutch and billet aluminum flywheel kit engineered for high-performance applications. Rated to handle 800 lb-ft of torque at the flywheel, this kit is built for drivers who have outgrown the limits of single-disc clutch solutions.

Key Features:

• Twin disc design delivers exceptional torque capacity in a compact, lightweight package
• Billet aluminum flywheel included — precision-machined to industry-leading .001-inch tolerances for perfect rotational balance and concentric actuation
• R-Trim friction material — a multi-friction disc featuring carbon semi-metallic on one side and Kevlar on the other for a balance of grip and drivability
• 800 lb-ft torque rating at the flywheel, suited for heavily modified and forced-induction builds
• Near-stock pedal feel — offers manageable street drivability alongside serious performance capability
• No shimming or setup required — bolt-in installation for straightforward fitment
• Rebuildable construction — units can be rebuilt by SPEC or the end user; replacement components and rebuild services are available
• Maintenance-free operation under normal use conditions
• Hand-built and tested in the USA — all SPEC clutches are designed and assembled domestically
• Suitable for limited street, drag racing, drift, road racing, time attack, pulling, and rallye applications

Complete kit includes everything needed for installation: twin disc clutch assembly, billet aluminum flywheel, and associated hardware. A proper break-in period of at least 450 miles of primarily city and stop-and-go driving is required before full-throttle engagement. If reusing an existing flywheel, the friction surface must be resurfaced prior to installation.