BMX Roll Out Calculator

BMX Roll Out Calculator calculates your bike's roll out based on your tires size and gearing. Handy for pit side gear changing at any BMX event.This version includes calculations on the following tire sizes:20x1.7520x1.520x1.37520x1.12524x1.7524x1.5024x1.37524x1.12520 1-1/820 1-3/824 1-1/824 1-3/8