I recently switched over to some Nashbar trekking (butterfly) bars on my Breezer Uptown 8 and like them quite a bit. I wanted to go with mustache bars, but since I have mountain bike sized brake levers and shifter, they weren't really an option. I have the trekking bar set up pretty much like a mustache would be though with the brake levers out in front. I kept the bar flat so it gives me a better aero position when I am out on the front and the more upright position on the side or back of the bar.