Bike Computer Troubleshooting: Calibration
For every bike computer, you need to enter your wheel size, through various methods, to let the computer know the distance of a revolution of the wheel. Most are related to the diameter of the wheel in centimeters or using the actual wheel designation (ie 700x23 or 26x1.95)
Each computer manual comes with a little chart for calibration. We are working on tabulating a master table for calibration numbers. In the meantime,check out this page