1936 OEC Sidecar
the Ministry of Transport wanted a special vehicle
for testing road surfaces OEC was the obvious
maker to approach. No problem for such a firm.
Half a ton of motorcycle and sidecar powered
by a 1000cc J A Prestwich engine capable of
propelling a normal motorcycle at 100 mph. All
this power is necessary because this is no ordinary
sidecar outfit. Its main function is to measure
the grip of the sidecar tyre on the road surface
and to do this the sidecar wheel can be steered
independently of the machine front wheel.
resistence of the sidecar wheel to being dragged
along in the direction it does not want to go.......scrubbing
the tread off the tyre, is measured on instruments
in the sidecar and recorded on tape. All the
equipment and the rider and passenger-tester,
make the outfit the heaviest sidecar machine
to go on the road. With the sidecar wheel pointing
in the right direction the outfit was capable
of near 50mph.