SPEC Clutch SS185 Stage 5 Clutch Kit - Full-Metallic Drag & Pulling

The SPEC SS185 Stage 5 Clutch Kit is SPEC's most aggressive single-disc clutch offering, purpose-built for extreme drag race, pulling, and high-horsepower competition applications. Designed for heavily modified engines that demand maximum torque transfer, the Stage 5 is also well-suited for slipper clutch or progressive torque-induced engagement setups.

Key Features:

• Full-metallic sintered iron disc with the highest possible friction coefficient for maximum torque capacity
• High-clamp pressure plate delivers aggressive clamping force; adjustability available on select applications
• Rigid, unsprung solid hub disc assembly with a heat-treated 12-rivet solid hub for exceptional strength and durability
• Bearing and tool kit included for a complete installation solution
• Ideal for drag racing and pulling — also suitable for autocross and extreme track use
• Available as a custom-configured kit — contact SPEC technical support with your vehicle details and intended use before ordering

Important Note: The Stage 5 clutch uses an unsprung hub that does not absorb drivetrain vibration, which can result in clutch chatter and harsh engagement. This kit is not recommended for street use and is intended exclusively for competition and race applications.

SPEC clutches are designed, hand-built, and tested in the U.S.A. to the highest manufacturing standards, making them a trusted choice among serious competitors and race teams.