Valve Shims

Hotcams precision shims are made from the finest steel and CNC-ground to ensure maximum accuracy. Each shim undergoes strict surface hardness and dimensional tests to ensure maximum reliability for your engine.
The 7.48 mm size is used on all major Japanese 250cc 4-stroke motorcycles.
The 8.90 mm size is used on most KTM 4-stroke models. It is recommended to check the actual shim diameter before ordering.
The 9.48 mm size is used on all major Japanese 450cc 4-stroke motorcycles.
The 10 mm size is used on the latest Beta 4-stroke models. It is recommended to check the actual shim diameter before ordering.
The shims are sold both individually and in practical KITS that include 3 shims per size in 0.05 mm increments.