Proven on the track and trusted by champions, the Brock’s Performance Clutch Mod Kit is the upgrade every serious ZX-10R rider needs for smoother, faster, and more consistent launches. Seen on David Fondon's XDA Super Stock Championship Winning ZX-10R, this kit has become the go-to solution in Real Street, Grudge, and other competitive hand-clutch applications—and it’s especially effective for heavier riders demanding maximum performance.
By disabling the factory slipper clutch, this kit eliminates the harsh grab-and-jerk of the stock setup, allowing riders to launch smoothly from a dead stop. The result is longer clutch life, improved drivability, lower ETs, and more MPH.
Engineered for Performance
The Super Stock kit includes extra heavy-duty clutch springs and precision shims to increase clutch pressure without introducing chatter or sacrificing top-end speed. With shim-adjustable spring tops, riders can fine-tune their setup to find the perfect balance of launch control and performance.
Each spring is made from valve-spring quality steel, shot-peened and stress-relieved to withstand the extreme heat and stress of high-horsepower drag racing. This attention to detail ensures consistent performance and reliability pass after pass.
FEATURES
- Eliminates ‘bucking’ during dead-stop launches – smoother takeoffs, lower ETs
- Disables factory back-torque limiter (slipper clutch) for improved drag-style performance
- Smoother operation, longer clutch life, and improved drivability
- Heavy-duty clutch springs – increased lever pressure for more consistent power transfer
- Valve-spring grade material, shot-peened and stress-relieved for durability
- Includes .025" and .062" thick steel shims for pressure adjustment
- Black oxide finish with engraved Brock’s Performance logo
- Click here to view Clutch Mod Installation Video
- Click here to view Spring Kit Installation Instructions
KIT INCLUDES
- 1 Clutch Mod
- 6 Extra Heavy-Duty Clutch Springs
- 6 Shim-Adjustable Spring Tops
- 6 Steel Shims (.025" thick)
- 12 Steel Shims (.062" thick)
Attention: While casual street riding is generally unaffected, some rear-wheel ‘chirp, hop, or chatter’ may be experienced depending on riding habits. All Brock’s Performance products are designed for Competition Use Only. Please review our Terms and Conditions for more details.
