Quote Originally Posted by bikerHen View Post
OK, I'm not a techie. I read the information, but it just doesn't seem to sink into my brain. I think a new bike requires a new Garmin cyclocomputer. Right? I've looked and looked, but can't find the answer to this burning question.
The answer is YES.


Quote Originally Posted by bikerHen View Post
If I get one, I want to use it for both my bikes. I know I need a second bike mount and sensors, but I'm stuck on the calibration. Does this thing calibrate wheel size automatically or do you have to program in the wheel size? Or do you even need a wheel size? My bikes have different size wheels. Will this be a problem? Is it even possible to change back and forth between bikes? Help!
I don't think it required any calibration in the real sense - like measuring out wheels. I don't remember programming anything in, although the user data section is very easy to use. You can program for different bikes, inputting weight of the bike, etc. - but I never even do that. I just switch the unit from one mount to the next (it came with 2 mounts).

I use it on both my MTB and road bikes. The GPS tracks speed and distance. The cadence/wheel mount sensor thing acts as a backup for that GSP speed/distance data. 2 of my 3 bikes don't even have the cadence attachment and all works well.