My commuting bike is a SS. As a previous poster mentioned, I tried a few gearing options on another bike and ended up with a gear that I liked. I am running a 46t chainring and a 17t BMX freewheel. My commute is city roads with a few short hills. I spin out going down the hills and frequently have to stand on the pedals going up. Still it is a good compromise. I am actually contemplating a switch to an IGH, though.

-Gary