Spec Clutch SN85ST-2 Super Twin Multiplate Clutch Kit Street & Track

The SPEC SN85ST-2 Super Twin Multiplate Clutch Kit is engineered for high-performance street and track applications, purpose-built for vehicles producing extreme horsepower and torque ratings between 700 and 1,500 ft-lbs of torque. Despite its race-ready capability, the Super Twin delivers near-stock drivability, making it a versatile solution for daily-driven performance builds and dedicated competition vehicles alike.

Key Features:

• Handles extreme torque loads from 700 to 1,500 ft-lbs — ideal for forced induction and high-output builds
• Near-stock drivability with smooth, quiet engagement for street use
• Full billet construction using aircraft-grade aluminum and high-carbon billet steel
• Precision-milled to an industry-leading .001-inch tolerance for perfect balance and actuation
• Friction provided by dampened, full-faced carbon graphite discs
• Available friction disc options: organic, fiber, and full metallic
• No shimming or setup required — true bolt-in installation
• Maintenance-free operation under normal use conditions
• Fully rebuildable by SPEC or the end user; replacement components and rebuild services available
• Flywheel and track-spec hardware included in each kit

Intended Use:

• Street performance
• Drag racing
• Drifting
• Road racing
• Time attack
• Pulling
• Rally

The SPEC Super Twin's all-billet design minimizes rotating mass while maximizing clamping force, resulting in a clutch system that is both durable and precise. With its rebuildable architecture and readily available replacement parts, this twin-disc clutch kit offers an outstanding long-term value for serious performance enthusiasts.