I tried USAA at one point w/my bike (I have house, car etc. w/them). Unfortunately, for me they wanted more full coverage $$$ per year than the bike was worth, even liability was steep with them for some reason. I stuck w/Progressive because of the cheap liability ins.
Maybe on a newer bike they would be more receptive? Dunno! Maybe one day I will be lucky enough to find out!
- Nut