ProX Valve Shim Assortment 250cc 7.48 from 1.20 to 3.50

*7.48mm diameter - Includes three valve shims in each size between 1.20 and 3.50mm in .05mm increments. 141 shims in total. (example: 1.20mm 1.25mm, 1.30mm, 1.35mm, 140mm) *

ProX Valve shims are made of premium materials. Specified heat-treatment processes ensures the hardness of the shims to offer maximum durability and less wear. ProX shims are precision machined to the exact OEM size specifications. All kits contains 3 shims in different sizes, with a handy plastic storage box with seperate compartments to stop your shims from intermingling.