Originally Posted by
missmixte
I'm not trying to go very fast. Right now a 7 mile commute takes me an hour. If I could get it down to 45 minutes either through better fitness or the bike or a combination, I'd be happy.
I totally agree that most of the slowness is in the engine!!

Also the route too. Do you have lots of traffic lights?
I am not very fast but around my neighborhood there are lots of traffic lights on some streets. I can't tell you how often someone speeds off uber fast who I run into at the next light. Sometimes we are going the same place, and although they seem way faster, I show up 1 minute behind them, at my much slower pace.
Traffic lights are the great equalizer.