I commute nearly everyday on a 2006 F650GS and consistantly get 60MPG. The bike handles fine at highway speeds and I have plenty of power to pass at 80MPH (no down shifting required). There is a terrific group at f650.com that has invested a lot of time about the pros/cons of the F650.
I ride 90% street / 10% dirt and the bike is terrific. I am 5'11", 230lbs and the bike can feel small at times but all in all it is terrific. Did I mention that I get 60MPG?...
If I was looking for a bike to commute only, I would strongly consider the KW Versys, ABS and the Triumph Street Triple.
NateLePain screwed with this post 08-27-2007 at 07:17 PM