Spec Clutch SV06A Aluminum Flywheel SFI-Certified CNC Billet

The SPEC SV06A is an aircraft-quality billet aluminum flywheel engineered for performance and competitive driving applications. CNC machined to an industry-leading .001" tolerance—ten times tighter than the industry standard of .010"—this flywheel delivers exceptional balance and a perfectly flat friction surface for consistent clutch disc engagement. The SV06A carries SFI certification, making it suitable for sanctioned racing environments.

Why the Flywheel Matters:

The flywheel is the single most important component in achieving optimum clutch performance and longevity. It serves three critical functions:

• Friction Surface: Provides a consistent, friction-enhancing bedding surface for the clutch disc, promoting smooth engagement and maximum holding power.
• Inertia Management: Flywheel weight directly controls the ratio of power to acceleration. SPEC engineers optimal weight and moment of inertia (MOI) for each application, accounting for gear ratio, tire type, vehicle weight, and powerband characteristics.
• Dimensional Accuracy: True balance at RPM eliminates runout-induced vibrations that rob power and accelerate engine wear, ensuring smooth, efficient engine revolutions.

Rebuildable Design:

The SV06A aluminum flywheel features a replaceable steel friction plate specially formulated for optimum clutch bedding and holding power. This rebuildable construction extends the service life of the flywheel and reduces long-term cost of ownership—a key advantage for serious competitors.

SPEC invests heavily in research and development to optimize flywheel dimensions, weights, and MOI across a wide range of driving and racing disciplines. The result is a lightweight flywheel solution that maximizes vehicle output without sacrificing drivability or reliability.