Way back in 1937, Albert Marquet achieved a speed of 85.3 he was motor paced following behind a car with a wind break in front of him like he was right on the bumper of the car and using the drag of the car to help his speed. Top speed of a motor paced bike is held by the current record holder Fred Rompelburg, who in 1995 reached a speed of 166.944 mph.
Recently a specially designed recumbent with a carbon fiber outer shell hit 82.3mph in a stand alone type ride by himself. He is Sam Whittingham. Here is a link to the story of the 82.3 mph run and a short video.
There was a guy on a recumbent bicycle that set the fastest record, but the upright world has denied him of this record. His name was something like Broadnoor, I tried googling it as I can't remember his name. Senior moment!
It is called motor pacing. The biker rides directly behind a vehicle with a windscreen attached to the vehicle. They use the draft of the vehicle to help them achieve the speed. See the following link it shows some setups.
That was his second run his first run was on a standard Mountain Bike and he smashed the previous world record (set by himself a couple of years earlier) by recording a speed of 101mph. His second run, on a specially modified carbon fiber bike ended in the crash. He broke several ribs and his sternum but was lucky to be alive.
He had crossed the speed sensor when the crash happened which recorded his speed at 107mph. So even though he crashed he got the record.
It has since been beat by Mark Stockl who beat it by going 130.7mph aug 2007 on snow. [ame=http://www.youtube.com/watch?v=dhAkj1UBY1c]YouTube - Markus StÃ¶ckl "serial bike downhill world record 210,4 km/h"[/ame]
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