Trusted by racers since 1985
- Secure SSL checkout — all major cards accepted
- Ships fast from our Newton, Iowa Store & Showroom
- Not sure it fits? Text or call a racer: 785-341-7301
Product Details
Clutch shims used to set the air gap on Bully style go kart clutches in outlaw kart, junior sprint, quarter midget and micro sprint racing. They bolt under the lever plate on the drive hub, so you can fine-tune the gap without swapping frictions or floaters.
Air gap is what controls how far the levers have to travel before the pack locks up, and it grows as the frictions wear. Shimming it back into spec restores consistent engagement RPM and keeps the clutch from slipping and cooking itself on a long main.
- Gold shim: .005 inch thick
- Silver shim: .010 inch thick
- Installs under the lever plate on the clutch drive hub
- Color coded so you can identify thickness at a glance
Sold individually. Running more than four shims is generally not recommended. Lever plate, drive hub and clutch assembly are sold separately.