Chris Bryson said:according to my computer 88 mph-I think its lying!
88k = 55mph, 90k = 56.25mph,
88mph = 140k on a road/racing bike with no suspension, not possible.
The speed record for bicycles over a distance of 200 m with flying start is a good 105 km/h (May 1986 at 2400 m altitude). The world hour record is at present 73 km/h (September 1989)
I don't know if there is a downhill speed record. Anyone know ?
http://www.sheldonbrown.com/rinard/aero/aerodynamics.htm