I have a Raleigh Rush Hour with 46/17 gear ratio (fixed) and flop-chop bullhorns. I ride it about 12 miles each way from a parking lot midway between my house and work for my "short" commute. Otherwise, I ride door to door (21 miles each way) on a geared road bike.
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Cat 2 Track, Cat 3 Road.
"If you’re new enough [to racing] that you would ask such question, then i would hazard a guess that if you just made up a workout that sounded hard to do, and did it, you’d probably get faster." --
the tiniest sprinter