Since I've started commuting I've been wanting to go faster and faster, on the flats and the inclines, which is why I asked. I don't have a computer on my bike and have been figuring out my average speed using the "dirt" formula. As for sustained, I really meant the whole ride. I should have worded it better. This morning I averaged 15mph, and its usually anywhere between 13-15. I felt like I was doing at least 20 on a slight downhill, I just tucked a bit and sprinted. I didn't last very long and my legs were killing me for the minute or two it took to recover. But all and all it was pretty cool.

The bike I have is the KHS Urban Express with 700c x 32 tires. Its the fastest bike I've ever owned. (only 24) And I really can't wait to get a bike with drop bars. I used to go to and from school on a MTB, but after the 3 or 4 miles it took to get there I was soaked. On this bike I can travel the 17 miles it takes to get to work, be just as sweaty, but not as tired.

Jeremy, Memphis is like Chicago in the urban setting but with way worse drivers. There might be more cars and people in Chicago but people here don't know how to drive.