These heavy-duty Hayabusa clutch cushion replacement springs are engineered to handle the most demanding drag and land speed racing applications. By increasing clutch pressure, they reduce clutch wear while improving acceleration and top-end performance.
FEATURES
- Includes (6) extra heavy duty green springs (.120″ dia. wire)
- Direct replacement in Hayabusa Clutch Cushion Kit (1999–2020)
- Compatible with Brock’s adjustable spring tops
- Reference: 120 lb. static pressure at 1.00″ installed height
- Proven in Real Street, Grudge, and high-power hand-clutch racing
- Provides quicker acceleration, longer clutch life, and higher MPH
- Made from valve-spring quality material, shot-peened and stress-relieved
- Engineered for millions of trouble-free cycles
FITMENT – IMPORTANT INFORMATION BEFORE ORDERING
- Do NOT use with Ultra Mod spacers in early Hayabusa applications.
- These springs replace stock springs and Ultra Mod spacers in the Hayabusa Clutch Cushion Kit.
- Not compatible with stock Hayabusa Clutch Mod or Ultra Mod without the Clutch Cushion Kit installed.
- Expect severe lever pressure, suitable only for serious performance builds.
- A Clutch Slave Cylinder Support is required on 1999–2007 Hayabusa applications.
- Installer is responsible for ensuring proper assembly without coil-bind
