1978 Behn Monoshock Frame
as a stressed member. With the engine installed the frame became
triangulated. We had special bolts made to secure the engine which were
almost a press fit into the Kawasaki engine cases. The four
diameter backbone was bent to allow Kawasaki Z1-cam cover removal. The
large diameter gives great torsional strength but the tube only had a
wall thickness of .0625". Without the engine to complete the
triangulation the frame would flex. We shipped the frames with a "faux
engine strut" to keep the frame stiff until the final engine
installation. A Colin Chapman, Lotus-esque, approach to chassis design.
Light to win races which it did.
Amortisseurs DeCarbon monoshock with custom valving. Timken bearings in
swingarm. Mild steel DOM tubing. Might as well have been from the
Twilight Zone when it showed up in 1977. Competitors liked to protest
it when it was winning. Our answer at the time was anyone could order
Contrast our frame to the,
at the time, state-of-the-art "Featherbed" frame design that everyone
used...even the factory racers from Japan. Both designs won races
whereas center hub designs from various designers like Andre de Cotanze (ELF), James Parker, Bimota
and others never had racing success. No one really did anything innovative
for many years until Pierre Doncques and John Britten came along. Their monoshock designs also won races.