Spec Clutch SA26A Billet Aluminum Flywheel SFI Certified - 1.1 6.9 lb

The Spec Clutch SA26A is a billet aluminum lightweight flywheel engineered for performance drivers who demand faster engine response, reduced rotating mass, and uncompromising precision. Weighing just 6.9 lbs, this flywheel is a dramatic improvement over heavy OEM dual-mass units, delivering quicker rev response and more efficient power transfer to the drivetrain.

Every Spec aluminum flywheel is CNC machined to an industry-leading .001-inch tolerance — ten times tighter than the standard .010-inch industry specification. This exceptional precision guarantees a perfectly flat friction surface for consistent clutch disc bedding, as well as flawless rotational balance that eliminates vibration and protects engine internals at high RPM. All Spec flywheels carry SFI 1.1 certification, making them approved for use in sanctioned competition environments.

Key Features:

• Aircraft-quality billet aluminum construction — body machined from tempered 6061-T6 or 2024-T3 aluminum for maximum strength at minimum weight
• Replaceable 1050 high-carbon alloy steel friction plate — 1/4-inch thick, specially formulated for optimal clutch bedding and holding power with any disc material, including iron
• Rebuildable design — friction plate is user-replaceable, extending the service life of the flywheel body
• Internal balance — precision CNC machining ensures zero dimensional runout for smooth, vibration-free engine operation
• SFI 1.1 certified — meets safety standards for competitive racing environments
• Aerospace-grade fasteners — friction plate secured with aerospace fasteners or stainless steel rivets for exceptional strength and corrosion resistance
• Heat-treated ring gear — pressed-on and secured with Grade 10 fasteners for long-term durability
• Includes crankshaft and pressure plate mounting hardware

The flywheel's reduced moment of inertia (MOI) allows the engine to rev faster and more freely, improving throttle response and acceleration. Spec invests heavily in R&D to optimize flywheel dimensions and weight for specific platforms, ensuring the SA26A delivers the ideal inertia balance for performance and street use. This flywheel is compatible with the full range of Spec Stage 1 through Stage 5 clutch kits.