Spec Clutch SU30MTR Mini Twin Multi-Disc Clutch and Flywheel Kit R-Trim

The Spec Clutch SU30MTR Mini Twin R-Trim is a high-performance multi-disc clutch and flywheel assembly engineered for demanding motorsport applications including road racing, time attack, rallye, and limited street use. The R-Trim designation specifically targets drivers who push their vehicles in precision, endurance, and performance environments where clutch reliability and response are critical.

SPEC Mini Twin assemblies are available in a range of clutch disc and flywheel materials, clamp loads, disc configurations, and diameters — each selected and recommended based on the type of driving the application demands. With a torque capacity of up to 800 ft-lbs, this kit is built to handle serious power while maintaining consistent, predictable engagement.

SPEC manufactures these units to an industry-leading one-thousandth of an inch tolerance, ensuring perfect rotational properties and concentric actuation for optimized balance, drivability, and longevity. The complete assembly is fully rebuildable by SPEC or the end user, with replacement components and rebuild services always available.

Key Features:

• Multi-disc clutch and flywheel assembly in a compact Mini Twin format
• R-Trim configuration: optimized for road racing, time attack, rallye, and limited street use
• Torque capacity: up to 800 ft-lbs
• Manufactured to 0.001-inch tolerances for precise rotational balance and concentric actuation
• Available in multiple disc materials, clamp loads, and diameter configurations
• Fully rebuildable by SPEC or the end user
• Replacement components and professional rebuild services available
• SFI approved

Intended Driving Applications: Road Racing, Time Attack, Rallye, Limited Street