1: The back cog drives the back wheel chain, which unlike on a normal bike can turn either way when the back handlebar is steered.
2:Back handlebar which steers the back wheel and has a rear light.
3:Front handlebar which steers the front wheel and has a light and rear-view mirror.
4:Pedals are at right angles to the wheels.
5:The seat is shaped like an upside-down crescent.
6:This frame goes over the lap of the cyclist, but can go under if preferred.
Quand j'ai vu cette image au boulot, j'en avais les larmes aux yeux tellement je rigolais!
J'ai tiré ca de l'article suivant:
http://worsethanfailure.com/Articles/Th ... cycle.aspx
Y'a même un lien avec un petit film de démo dedans:
http://news.bbc.co.uk/1/hi/magazine/6375259.stm
terrible