This page links to owner's manuals and setup instructions for almost any cyclecomputer or bicycle GPS unit you are likely to come across. Send us the manual of one we don't list, or a scan, and we'll post it.

This page is a complement to the cyclecomputer database, providing appropriate calibration numbers for most cyclecomputers and wheel sizes. This document also describes techniques to improve on stock calibration numbers to improve accuracy.

A version of the Cyclecomputer Calibration Chart designed to be printed out on paper.

17 Tips For Installing Cyclecomputers

Cyclecomputers and GPS systems each have their own pecularities, and this article describes them, along with a bit of history.

Three cyclecomputers are tested against one another to see whether their distance readings are consistent with one another. Well, almost!

How to use this online service to find and store rides; setup on your bicycle and home computer or tablet.

Mark describes how changes in GPS signals created a problem, and how you may be able to solve it without replacing your phone.

by Charles Learoyd

It sometimes matters which way the magnet faces!

Cyclecomputers can be serviced when they malfunction, and most problems are not that difficult to fix. You will need a multimeter (volt-ohm-milliammeter) which can be purchased for under $15.

Some repairs may also require a soldering iron and knowledge of how to use it.

An encyclopedic listing of bicycle lore, technical data and opinions.

Who needs all the tech, anyway?? Back to basics!