Hi,

I had a commuter, I ride now a road bike for both commuting and group rides and
still use the bike of my girlfriend two or three time a week. I think that all the four
points make sense but I think that the geometrie of the frame and the resulting
position on the bike is the most important. With the commuter of my girlfriend a feel like I can not transmit efficiently the power to the crank. And I don't know if it's a consequence of that but I feel on a commuter that I always have to shift up or down in order do ride confortably.

It's my opignon.....