Originally Posted by shepherdsflock

I should add that my commute back home in the afternoon is usually only about 14.5 mph even when I'm pushing hard. The route coming to work is a lot of downhill, while going home is more uphill. So, you can see how I manage 11 mph at a leisurely pace if I'm spending a lot of time going downhill; that and I'm on a fairly light roadbike with 700cx23 tires.