Speeds in parentheses list both my bike computer velocity, and my overall (distance/time) velocity. The first number only counts the time that the wheel is rotating, and does not include stoplights, stopsigns, and food breaks. The stopwatch, however, runs continuously, so the second number is overall average speed.
Most of these records were set with my Fuji Mountain bike. However, I've started attacking my PR's with my new Performance R205 road bike. Each record has a [Mtn] or [Road] tag to signify which bike was used for the record.
My old record [Mtn] was 18:52, 13.6mph, 5400', on a nearly closed loop from Palo Alto - Hollister - Monterey - Los Gatos, July 13, 1996.