Gary, no one seems to have addressed you cyclocomputer issue. There are a few things to look for.

1. make sure the set up is correct for your wheel size. The best way is to set the bike in a smooth flat floor (garage is perfect) with the stem at the bottom (6 o'clock) and mark the floor at that point. Roll the bike forward one rev. Mark the floor again. Measure the distance in mm. That is the # you put in the computer at set up.

2. Make sure it is set up for MPH not KPH. Sounds like it is, but it doens't hurt to check.

3. Make sure the spoke magnet is positioned correctly and is tight. The same goes for the sensor. Get is as close as possible with out touching.

Perhaps others have other ideas.

Look forward to seeing you out there climbing the "hill" on Trail's End!