Originally Posted by Plecks

As far as I know, there's actually a fairly big fixed gear following in San Fransisco. How many of them actually ride them, I don't know.

To the OP, I have a Mark V Pro with a 17t/19t fixed/free flipflop, 46t chainwheel, and it works great in Seattle which is pretty hilly (on the fixed most of the time, unless I'm getting tired and still in a hilly area).

Have a front brake.