![Douglas WD21 / 2 ¾hp 1921 350cc 2 cyl sv]( "Douglas WD21 / 2 ¾hp 1921 350cc 2 cyl sv")
Manufacturer: Douglas
Model: WD21 / 2 ¾hp
Year: 1921
Displacement: 348 cc
Cylinder: 2
Engine type: 4-stroke / sv
Bore / Stroke:
60.8
x
60 mm
Frame number: 40696
Engine number: 35521
The Bristol-based Douglas Foundry took up motorcycle production in 1907 with a machine powered by a horizontally-opposed twin, and the company would keep faith with this engine layout until it ceased motorcycle production in 1957. Fore-and-aft installation made for a slim machine with a low centre of gravity, and the design's virtues were soon demonstrated in competition, Douglas machines taking first, second, and fourth places in the 1912 Junior TT in the Isle of Man. Douglas were quick to realize the advantages of the countershaft gearbox, its three-speed entries gaining the Team Prize in the 1914 Six Days Trial, a conspicuous success which resulted in the firm obtaining a wartime contract for the supply of military machines. This distressed and incomplete Vintage-era Douglas has a 350cc side valve engine of the fixed head type with outside flywheel and BTH magneto ignition. The transmission comprises chain primary drive to a two-speed gearbox with belt final drive. The front fork is of the side-spring type with stirrup front brake, while rear wheel retardation is achieved by a v-block belt-rim brake. The WD had the basic “veteran” specification of two speed gearbox and did not have the luxury of a clutch.
This 2 cyl Douglas is fitted with an acetylene lighting, BTH magneto, 2 speed gearbox and a Dunlop hand pump. It´s an interesting project need some cosmetic attention and recommission.