The Suzuki Biplane which was revealed at the 2007 Tokyo
Motor Show is a concept motorbike inspired by Biplanes.
Rather an unusual source of inspiration, the design uses
colors similar to the canvas often found on older aircraft,
and the lack of any wind protection would also leave the
rider exposed to the elements - similar to the pilot of
an open-top aircraft.
The Suzuki Biplane concept uses a semi-exposed V4 engine
for power, and a girder-type front end, similar to that
found on the Confederate
Wraith, for steering and front suspension. The partly
covered rear wheel and flush seat-to-tank design is similar
to those found on the 1986 Suzuki
Nuda concept bike.
Aprilia Magnet
Aprilia Kerkennah
Audi Moto
BMW IMME 1200
Confederate Renovatio
Derbi Mulhacen
Dodge Tomahawk
Honda Concept 1 
Honda NAS 
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