As low as $4.51/mo with or . (Pay in 4 interest-free payments)
SPORT-PARTS INC. Spring Shim Kit Unlock smoother clutch performance and fine‑tuned engagement with the SPORT-PARTS INC. Spring Shim Kit . Engineered for reliability and precision, this kit helps optimize RPM engagement while reducing friction at the spring ends. Improved lubricity: Two slipper shims reduce friction so spring ends move more freely for consistent response. Fine-tuned engagement: Each zinc-plated engagement shim increases clutch engagement by approximately 40–50 RPM. Complete setup: Includes two slipper shims and three engagement shims for versatile tuning. Durable build: Zinc plating resists corrosion for long-lasting performance. Easy installation: Simple drop‑in shims make quick trackside or garage adjustments. Perfect for riders seeking predictable launches, smoother takeoff, and customizable clutch feel. Whether you’re dialing in your setup for racing or refining everyday performance, this kit provides precise control over engagement RPM. What’s Included: 2 slipper (lubricity) shims, 3 zinc-plated engagement shims. Upgrade your clutch tuning with the dependable quality of SPORT-PARTS INC.
Two lubricity shims allow spring ends to move more freely
Each zinc plated shim increases engagement by 40-50 RPM
Kit includes two slipper shims and three engagement shims
or 
. (Pay in 4 interest-free payments)
