Williamson Flat Twin
Manufacturer | Williamson Motor Company |
---|---|
Production | 1912-1920 |
Engine | 964cc water-cooled twin |
Wheelbase | 60.5 inches (154 cm) |
The Williamson Flat Twin was motorcycle made in Coventry, UK by William ('Billy') Williamson, who had been managing director of the Coventry-based Rex company. He teamed up with William Douglas (of Douglas Motorcycles to develop new prototype motorcycles under the name Williamson-Douglas and employed Billy's brother Harold as a test rider. Douglas had been developing a 964 cc water-cooled flat twin engine that could be used either for light cars or motorcycles. Billy Williamson fitted this engine into a frame with Douglas-Druid girder forks and a Douglas two-speed gearbox and a foot-operated clutch which was launched in 1912 at a cost of £82. In 1913 an air-cooled version was added to the range and in 1914 a kick starter was added. Production was halted by World War I and in 1919 the only engines available were JAP 980 cc air-cooled side valves, so Williamson redesigned the frame to fit. Unfortunately Billy Williamson suffered a fatal heart attack in 1920 after only twenty motorcycles had been produced.[1]
References
- ^ Currie, Bob (1988). Classic British Motorcycles of over 500cc. Patrick Stephens Ltd. ISBN 978-1-85260-083-9.
See also
- List of motorcycles of the 1910s
- List of motorcycles by type of engine
- List of fastest production motorcycles
- Use dmy dates from January 2017
- Use British English from January 2017
- Articles with short description
- Short description with empty Wikidata description
- Pages using infobox motorcycle with unknown parameters
- Motorcycles of the United Kingdom
- Motorcycles introduced in the 1910s
- Motorcycles powered by flat engines
- All stub articles
- Motorcycle stubs