Honda CRF Valve Shim Calculator

Looking to shim your Honda CRF450R valves to their correct tolerances? Use this valve shim calculator to make the job easy. It's set up with shim specs for the CRF450 but you can change those and use this calculator for the Honda CRF250R and CRF250X as well. It also has the Honda part numbers for all the available shims. Click Here to check it out!