I always feel very left out when I read posts, here or elsewhere (yes, there are other bike forums, but they really seem crummy after you've been on this one any time!

)--about average speeds.
Because I've never been able to maintain an average speed much over 10.5 miles per hour, on either my mountain bike or road bike, commuting or otherwise. All my riding is done in the city with lots of traffic lights and perils and such, but they don't really count because the MTB computer has auto start/stop, and the new one on my road bike does too--it's 10.5 or so, regardless.
If there were no hills, the average would probably be about 12. Still way below what everybody else seems to ride.
Oh, well. I hope there's some other poor soul out there that may read this and realize he or she is not alone. Maybe people with poor averages like mine just don't post about it.