Spec Clutch SB10MT3 Mini Twin X-Trim Multi-Disc Clutch and Flywheel Kit

The Spec Clutch SB10MT3 is a Mini Twin X-Trim multi-disc clutch and flywheel kit engineered for high-performance street and motorsport applications. Designed for drivers who demand maximum torque capacity without sacrificing drivability, this twin-disc assembly delivers the holding power needed for drag racing, road racing, time attack, drift, pulling, and limited street use.

SPEC's Mini Twin assemblies are available in a range of clutch disc materials, flywheel materials, clamp loads, disc configurations, and diameters — each combination tailored to match the specific demands of the intended driving environment. The X-Trim designation represents SPEC's full-faced carbon composite disc configuration, offering exceptional torque capacity while maintaining streetable engagement characteristics.

Kit Includes:

• Rebuildable billet flywheel
• Twin-disc clutch assembly
• Grade 10.9 flywheel bolt kit
• Release bearing

Key Features:

• Precision-machined to .001-inch tolerances for perfect rotational properties and concentric actuation
• Optimized balance, drivability, and clutch life through industry-leading manufacturing standards
• Fully rebuildable by SPEC or the end user — replacement components and rebuild services are always available
• SFI-approved flywheel and clutch assembly
• CNC-machined billet flywheel construction for consistent friction surface and true rotational balance

Intended Driving Applications:

• Limited street
• Drag racing
• Road racing
• Drift
• Time attack
• Pulling
• Rallye / autocross

SPEC manufactures all clutches and flywheels in-house at their purpose-built facility, ensuring every component is designed, tested, and optimized to work together as a complete system for the best possible performance and longevity.