Spring Shim

Comet Spring Shim

Precision shim for 102C, 108C, 108EXP & 108 4-Pro clutches. The Comet Spring Shim is a simple, durable washer designed to fine-tune clutch engagement for smoother starts and improved performance.

• Compatible Models: Fits 102C, 108C, 108EXP and 108 4‑Pro clutches.
• Adjusts Engagement: Each shim raises engagement by approximately 100 RPM for quicker throttle response.
• Easy Installation: Thin, uniform washer installs quickly with no modifications required.
• Durable Construction: Made from hardened material to withstand repeated use and maintain consistent spacing.

Perfect for racers and tuners who need precise control over clutch engagement. Use one or stack multiple shims to reach your desired RPM and optimize acceleration and clutch bite.

Note: Verify compatibility with your clutch model before installation. Professional installation recommended for best results.