Silk were motorcycles produced from 1975 to 1979 at Darley Abbey in Derby by George Silk.
The company was established by motorcycle racer and constructor George Silk and
Maurice Patey, in 1970,
George Silk was a Scott racing enthusiast who went on to build the Scott Silk Special
for road use in 1972. This machine was greatly modified and fitted together a Scott engine, Velocette gearbox and Spondon frame in a combination that worked
Following on came the Derby-built Silk700S, an
of the Scott
that was light and
easy to handle, and fitted with the 653cc Silk engine, a
twin-cylinder two-stroke with the block inclined forward. Inside
all new, with a full crankshaft supported on bearings either
side of each
pair of flywheels, with a horizontally split crankcase. The
gearbox bolted to the back of the crankcase and the whole was
give a smooth, light and economical machine.
A production racing version was also listed for a couple of
was fitted with a racing fairing and had a tuned engine.
Improvements were made as necessary and a Mk II was
cooling fins on the cylinder block. A compact 326cc air-cooled
was also built. It had a four-speed gearbox with a choice of
with the mechanics suspended from a monocoque spine frame and
1976 Thirty machines built.
Production stopped in 1979. Less than 150 of the 700S
had ever been
produced, but as a special, it had always appealed to Scott