Spec Clutch SH224 Stage 4 High-Performance Carbon Semi-Metallic Clutch Kit

The Spec Clutch SH224 Stage 4 Clutch Kit is a race-engineered clutch system built for heavily modified engines that demand maximum torque capacity and instantaneous engagement. As a solid hub evolution of the Stage 3, this kit is designed for serious motorsport applications where performance takes priority over street comfort.

At the core of the Stage 4 is a solid 8-rivet rigid hub paired with a high-clamp pressure plate and carbon semi-metallic friction disc. The entire hub and carrier assembly is heat-treated for exceptional strength and durability under high-stress race conditions. The kit is available in 3, 4, or 6-puck configurations to suit your specific racing needs — choose the 3-puck for the lightest possible rotating mass, the 6-puck for the smoothest engagement among the puck options, or the 4-puck as an ideal balance between the two.

Key Features:

• High-clamp performance pressure plate
• Carbon semi-metallic friction material for superior heat resistance and torque capacity
• Solid 8-rivet rigid hub and carrier assembly — heat-treated for strength and durability
• Available in 3-puck, 4-puck, or 6-puck disc configurations
• Torque rating: 298 ft-lbs
• Bearing and tool kit included (select configurations)

Intended Use: Drag Racing, Road Racing, Drift, Rally, Pulling, Circle Track

Note: The Stage 4 features a rigid (non-sprung) hub that delivers instantaneous, aggressive clutch engagement. While technically drivable in 6-puck form, this kit is not recommended for daily street use and is best suited for dedicated race and performance track builds.