Constructed using a specific heat-treatment to ensure hardness formaximum durability and less wear and precision machined to match exactsizing requirements. Each size is sold individually as a pack of 5 toreduce costs when only requiring a particular size or restocking your valveshim pack.

Most 250cc 4-strokes use 7.48 mm OD shims most 400ccand up 4-strokes use 9.48 mm OD shims and KTM models use 10 or 8.90 mm ODshims.

Heat-treated ensuring hardness for maximum durability andless wear
Precision machined to match exact size
Each size soldindividually to keep cost down
Works with stock or aftermarket cams
Sold as a pack of 5

Sizes available:
7.48mm x 1.20mm -3.50mm in 0.05mm increments
9.48mm x 1.20mm - 3.50mm in 0.05mmincrements