Originally Posted by oboeguy
I enjoy a good laugh when I see folks cruising at a bruising 12mph on aero bars. I don't use 'em (plus they wouldn't fold very well, I imagine (see sig

)).
If you're fast enough you'll notice a time difference, I would imagine. Then there's the control issue -- you'd be nuts to use aero bars in high traffic areas.
Aeros truly help with the extra position and the tuck is surprisingly effective in a headwind. Don't knock it 'til you've tried it, and of course not in high traffic areas.