I'm averaging right @ 14 mph 1 hr 26min (or so) on a 20 mile trip. That's calculated by taking the distance I ride and divide by the time it takes to do that. Bearing in mind that I spend a bit of time sitting still at stoplights and such, I imagine I'm actually traveling a little faster than 14 mph, but I don't have a GPS or a computer on the bike. I ride a Trek 7100 I've got decked out as a commuter.

I plan to upgrade the bike this year.