Description
Valve clearance directly impacts engine efficiency, combustion timing, and overall reliability—even small deviations can reduce power output or cause premature wear. The HOT CAMS Valve Shim 5-pack gives you precision adjustments to dial in optimal clearance on your CRF450R, whether you’re tuning after a top-end rebuild or maintaining race-spec tolerances. With five shims included, you’ll have the flexibility to fine-tune each intake and exhaust valve without multiple orders.
- Fits: CRF450R 2002-2009
- Size: 9.48mm OD × 2.55mm thick
- Quantity: Five shims per pack
- Material: Hardened steel
- Application: Valve clearance adjustment
- Installation: Requires valve cover removal
- MPN: 5PK948255






