The 1922 Olympia Show.
Touring and Racing Flat Twins.
2¾ H.P. Model.
60.5x60 mm. (348 c.c); flat twin cyl. four-stroke; side-by-side valves; drip feed lubrication; Amac carb.; gear-driven mag.; 2-5p. gear; no clutch or kick-starter; chain and belt drive; 26x 2¼in. tyres. Price £50.
Douglas Motors, Ltd., Kingswood, Bristol.
For many years the Douglas motor cycle has held a position on the market entirely of its own, and the recent successes of the larger machines have brought the make prominently before the public in the last few weeks. The 348 c.c. machine is practically identical, as far as its main lines are concerned, with the motor cycle with which the Douglas firm made its name, but it is available, of course, now both with the belt and with chain drive, clutch and kick starter, and three-speed gear.
3½ H.P. Model.
68x68 mm. (494 c.c); flat twin cyl. four-stroke; overhead valves; mechanical lubrication; Amac carb.; gear-driven mag.; 3-speed gear; clutch and kick-starter; chain drive; 650x65 mm. tyres. Price £95.
In addition there is the 494 c.c. model, with which so much has been done at Brooklands and which was the first machine of the 500 c.c. class officially to exceed 100 m.p.h. This engine is, broadly speaking, on the same lines as the 348 c.c. model, but has overhead valves, and the machine shown on the stand is of the Tourist Trophy type. There is also the 733 c.c. model, intended especially for sidecar work, which is very much on the same lines as the 494 c.c, save that the engine has a bore and stroke of 83x68 mm. (733 c.c).
Finally the 595 c.c. machine, also chiefly for sidecar work, is exhibited, and has mechanical lubrication. This engine has been but little altered of recent years, and is almost of the same design as the smallest machine, save that the frame is on the lines of the 494 c.c. type. The bore is 74.5 mm. and the stroke 68 mm. The price of the 595 c.c. model is £85 solo, £110 with sidecar.
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