Very large, very small, slow as a snail and extremely fast: notions like that are always inspirational, for design as well as for potential cyclists. The world speed record on a bicycle by Fred Rompelberg, set in 1995 on the Salt Plane in Utah USA is 268 km/h. He rode behind a dragster to catch the wind. So it was more a matter of behaving dangerously.
Right now students in Delft and Amsterdam are preparing a hypercool bicycle for an attempt to break a Canadian record without the drag catcher. The record is 133 km per hour. The most important properties for such a vehicle are in aerodynamics and lightweight structure consisting of carbon fibre reinforced polymers.
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