We see a lot of speed discussions. I often wonder what speed good solo riders can maintain on flat ground for extended periods. I really don't know. I only know they're a ton faster than I am. I can do 22 miles (getting stronger week by week...) in an hour in the flat lands around Chicago, and just did 40 in 2 hrs (out and back). Right now my eventual goals are a century in under 5 hrs, and 25 miles in 1 hr. What can all of you do?