I always find it funny that a lot of roadies diss fixie riders cause they think they're at a horrible disadvantage. And on the other side, a lot of fixie riders diss roadies cause they think they're lazy. Honestly, if someone rides a fixie and trains 5 days a week and they're at 90% HRM all the time and a roadie with gears trains 5 days a week and they're also at 90% HRM, aside from a slightly better spin for the fixie, the guy on the geared bike (assuming they're both in the same physical condition) would completely blow away the fixie on a rolling course. And on flat ground, well, geared properly, a fixie is a lot more efficient.

It's really all about you, the motor. NYCCommuter has a fixie and he says it's actually easier going up the hill, assuming you're not trying to kill yourself, cause the pedals have a little momentum that actually pushes you.

On a good day, the fast group does about 20 going up the hill, then around 25 coming around, 35 on the downhill, 25 on the flat after that, slowing to 20 again by the zoo. Sometimes they'll up it to 27-28 on the last laps.