Originally Posted by
jimmytango
I need to get something to measure my power... Just out of curiosity ya know? In related news, I got an app for my phone that has a gps-based cyclocomputer in it. I realized I ride faster than I thought. I had estimated my normal cruise at ~15, but over the course of three miles it said my max was 27 and average was 22. Not great I guess, but faster than I thought, so that's a plus.
Those GPS speedometers may measure distance-traveled well, but speed data can be wildly inaccurate. If you have the funds, get a basic computer (wired or wireless).
I use the Cateye Strada on my road bike:
http://www.cateye.com/en/products/detail/CC-RD300W/
http://www.amazon.com/Cateye-CC-RD30.../dp/B003GNTCJI
But there are less expensive options that do the same things:
http://www.performancebike.com/bikes...egoryId=400127