Spec Clutch SV81S Steel Flywheel High Performance CNC Machined

The Spec Clutch SV81S Steel Flywheel delivers precision-engineered performance for demanding automotive applications. CNC manufactured to an exceptional .001" tolerance—ten times tighter than the industry standard of .010"—this flywheel ensures perfect balance and a flawlessly flat bedding surface for optimal clutch disc engagement and longevity.

Key Features:

• High carbon billet steel construction for durability and consistent performance
• CNC machined to .001" tolerance for perfect balance and dimensional accuracy
• SFI certified for competitive racing safety standards
• Replaceable steel friction plate for extended service life and rebuildability
• Friction-enhancing surface specially formulated for maximum clutch holding power
• Optimized weight and inertia characteristics for improved power transfer
• Eliminates power-robbing vibrations with true balance at high RPM

This steel flywheel provides medium-weight inertia characteristics ideal for various racing applications and performance driving. The replaceable friction plate design allows for rebuild capability, making it a cost-effective long-term solution. Spec's extensive research and development ensures each flywheel is engineered with optimized moment of inertia (MOI) to maximize your vehicle's acceleration and power output characteristics.

The precision-ground friction surface promotes consistent clutch engagement and enhanced holding power, while the accurate balance ensures smooth engine operation throughout the RPM range. All Spec flywheels meet rigorous SFI certification standards for competitive motorsports use.