Design started on the Honda NAS motorbike concept in 1999
at Honda's research and development department in America.
NAS, standing for New American Sports, was intended to
push the boundarys of sports bike design for the American
market.
Designers of the NAS realised that the overwhelming majority
of sportsbikes had been initially designed and engineered
for the track, Honda bikes included, their intention was
to try and offer another option, a sports bike built for
the road.
The NAS Designers also wanted to create a machine with
more personality which would be easier to make a bond
with, a mischievous face can definitely be made out hiding
in the headlight fairing.
However the NAS was not all about form, some of the most
ingenious engineering solutions in the motorcycle market
were seen on the NAS.
For example the unique mono-arm suspension is constructed
of carbon
fibre and aluminum, with the damper and spring neatly
enclosed within a massive steering head.
Aprilia Magnet
Aprilia Kerkennah
Audi Moto
BMW IMME 1200
Confederate Renovatio
Derbi Mulhacen
Dodge Tomahawk
Honda Concept 1 
Honda DN-01 
Kawasaki ZZR-X
Norton Nemesis
Polaris Revolver
Robrady rMOTO
Sachs Beast
Suzuki Nuda
Suzuki G-Strider
Suzuki Stratosphere
Victory Vision 800
Voxan Charade
Yamaha MT-OS
Yamaha Deinonychus
Yamaha Gen-Ryu
Yamaha Maxam 3000