Quote Originally Posted by pooks
Oh good -- I love all these resources!

In the meantime I called REI and they said no way there should be that much difference between bike and car odometers, so I'm taking it in for them to either adjust or confirm. And if they confirm -- Honda and I need to have a little talk!
Don't you have the manual for your computer?

It's super easy to adjust it. You will have to reset it and start over. You just need to have the right wheel size number.

For example, the number for my 700 X 23C wheels (road bike) is 2098, which stands for 2098 millimeters, or 2,098 meters. In other words, each time my wheels make a complete turn (and each time the computer magnet on my spoke passes by the sensor, which sends a "click" to my bike computer), I gain 2,098 meters. (Approximately 7 feet.)

The number for your wheel size will be in the instruction manual of your computer, as well as the instructions to reset it.