Spec Clutch SU30MT3 Mini Twin X-Trim Multi-Disc Clutch and Flywheel Kit

The SPEC SU30MT3 Mini Twin X-Trim is a high-performance multi-disc clutch and flywheel assembly engineered for drivers who demand race-proven reliability across a wide range of aggressive driving disciplines. The X-Trim configuration is purpose-built for drag racing, road racing, time attack, rally, and limited street use, making it a versatile choice for serious performance builds.

SPEC's Mini Twin platform features multi-disc construction with a compact footprint that delivers significantly higher torque capacity than a conventional single-disc clutch. The assemblies are available in a variety of clutch disc materials, flywheel materials, clamp loads, disc configurations, and diameters — each matched to specific driving demands for optimized holding power and engagement characteristics.

Key Features:

• Multi-disc design — increased torque capacity in a smaller, lightweight package
• X-Trim configuration — suited for drag racing, road racing, time attack, rally, and limited street applications
• Industry-leading .001" manufacturing tolerance — ensures perfect rotational balance and concentric actuation for smooth, consistent engagement
• Flywheel and track-spec hardware included — complete kit ready for installation
• Rebuildable by SPEC or the end user — replacement components and rebuild services are always available, extending the service life of the unit
• SFI-approved flywheels — meets stringent safety certification standards for competitive use
• Billet flywheel options available in high-carbon steel or aircraft-grade aluminum for optimized moment of inertia

SPEC designs and manufactures all clutches, flywheels, and pressure plates in-house at their purpose-built facility, ensuring every component is engineered and tested to work together as a complete system. The Mini Twin's rebuildable architecture and readily available replacement components make it a long-term investment for any high-performance application.

Intended Driving Types: Limited Street, Drag, Drift, Road Racing, Time Attack, Pulling, Autocross, Rallye