I did 26 miles, and felt really sluggish. I figured it was the wind and hills, and the fact that I'm a bit sleep deprived. Then, when I got home, I realized my front brake was rubbing . Doh! I adjusted the brake, took a long nap, so hopefully next ride I'll see a difference! Anyway, it was a great workout. I slept like my new kitten (hmmm, wonder why I'm sleep deprived? ).