Just realized this is a thing but don’t understand how some of those riding bikes sitting laid back on an otherwise mostly usual looking two-wheeled bike can be much more aero than a traditional lightweight road racing bike. Why would someone who can’t go over 20 mph on a road bike be able to do 40 on one of these like one of the guys claimed?
Related, are these really the fastest “human powered” vehicle designs or is it just that enough smart people haven’t spent enough time hacking this concept unencumbered by UCI design restrictions?