Just got a cyclocross bike and I'm a total newb, so bear with me. Not wanting to spend more than I have to (I know, I know...), I picked up a cheap Bell wireless computer. Installed great, has all the functions I need, etc. Took the bike out for a spin along my normal jogging route. I have a Garmin Forerunner 101, which I love. Well, when I got to the spot where my GPS says is 1 mile, the bike computer only said like .84! I mapped the route on Google Maps and the GPS is dead-on accurate.
The bike computer had standard wheel sizes that you could put in. Is there another wheel size that I should try, or should I just junk this one and get a new one? FYI, here is the link to the manual for my computer.
If I need to get a new one, I'm kind of leaning towards just forgetting the whole magnet/tire size thing and going straight GPS with the Forerunner 205. That way, I can use the same thing jogging and biking. Any pros/cons for going this route?