Originally Posted by
tjspiel
I don't doubt there are people who could maintain 20+ mph riding a MTB on the flats without a ton of effort.
I'm not one of them.

Yep that leave me out however my average on my Full suspension flat bar MTB is over 20+ MPH. Hee hee!
I use it only on downhill runs. I have a friend drive me and my bike to the top. I suspect that average will be higher this summer as I hope to take it to the ski slope.