Bicycles require human power to move forward, but that doesn't mean they can't move fast. The record for the fastest speed achieved on a regular (upright) bicycle belongs to Fred Rompelberg, who in 1995, reached a speed of 166.944 miles per hour while being paced by a motor vehicle, which substantially reduced his wind resistance.
The official record for an unpaced upright bicycle is 51.29 miles per hour over 200 meters set by Jim Glover in Vancouver in 1986. Recumbent bicycles -- those funny-looking bikes where the rider sits in a reclined position with legs extended forward -- are aerodynamically faster than conventional bicycles. Canadian cyclist Sam Whittingham set the recumbent bicycle speed record on October 5, 2002, reaching 81 miles per hour over 200 meters with a flying start and no pace vehicle.