"GoldenCheetah - Imports ride data downloaded with other programs - Provides a rich set of analysis tools - Is released under an Open Source license.
We believe that cyclists should be able to download their power data to the computer of their choice, analyze it in whatever way they see fit, and share their methods of analysis with others." Tested on amd64 and lightly tested on i386. There's one test file (2008_06_25_20_59_49.wko) which makes it segfault during the import. The other .wko test files don't trigger this bug. I'll report this upstream. Otherwise it works fine for me with .fit files from my Sigma ROX 10.0 GPS exported from the Sigma datacenter software. Unfortunately that's the only device I have access to.
GoldenCheetah.tar.gz
Description: application/tar-gz