High altitude - 54mpg
I live in Boulder, CO and my riding varies between 5100 and 10,000 feet elevation. On my most recent tank of gas I pulled 54 mpg and that was with a mix of canyons, highway, and stop-and-go riding.
For reference, I'm not a heavy guy (~165bs fully geared-up) and I do have a Givi windscreen. I believe both of these things make a difference. Also, I have about 5000 miles on my 2009 model.
SW Motech Engine Gaurds, SW Motech Alu Rack, KTM handgaurds, Custom iPhone mount with Powerlet and heated grip switch