While reading a bicycle book published in 1975,I came across an excerpt regarding the Absolute Speed Record for a bicycle at 138+ mph.I did some further surfing & found some interesting tidbits.
The bike used to set the record was not that radically different than a track bike from that era.[Huge chain wheel & 18" wheels the major exceptions]
Check it out at
http://abbc3.usc.edu/
Also take a look at a more modern 210+ mph record holder:
http://www.homestead.com/
To my surprise these two special purpose bicycles were both certainly different but not too far removed from the contemporary bike designs of their eras.
Nick 'sub 200mph' Zatezalo
Atlanta,Ga