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Douglas Motorcycles

Douglas-1922-2-5hp-TMC
1922 3½ h.p. Sports Model Douglas

The 3½ h.p. Sports Model Douglas. Observe that the tool-box is carried on the mudguard in the absence of a carrier. It is sold equipped with lighting set and horn.

Douglas 1922 Models

All 1921 Models Retained, with Minor Improvements. .

New 6 h.p. Douglas Sidecar Outfit.

A SIDECAR outfit which, it is claimed, will exceed 60 m.p.h., is the chief addition to the Douglas range of motor cycles for 1922. Although new to the public, this machine has been on the road for many months, and we have heard very good accounts of it from various sources. We have also seen it perform when in its " hush, hush " disguise, and long ago we had formed the opinion that, when marketed, it would be a worthy addition to the short list of really fast machines produced in this country. Having a bore of 83 mm. and a stroke of 68 mm., the piston displacement of this new engine is 733 c.c. From these figures it will be seen that the power unit is a development of the speedy 3½ h.p. sports model, the bore and stroke of which are 68 mm.

An o.h.v. 6 h.p. Twin.

The new 6 h.p. unit embodies the over-head valve arrangement, now well-known as a feature of the smaller machine, and which, it will be recalled, includes a unique system of, wick lubrication for the rockers contained in aluminium boxes over the cylinder heads. All bearings in the engine are of the ball or roller type, the cylinder heads are detachable, and the connecting rods are of H section with double row roller big ends. A special heated induction system is also incorporated.

Two shock absorbers are fitted, the first on the engine shaft, and the second interposed with the rear hub. Renold chains transmit the power via the Douglas three-speed gear box, which embodies the clutch and a kick starter on the off side.

Incorporated with the rear shock absorter is a very powerful internal expanding brake, operated from the right-hand toot pedal. A Douglas patent V shoe brake, acting on a wedge-shaped drum running on roller bearings, is fitted to the front wheel; at the same time both wheels are quickly detachable and interchangeable by removing the knock-out spindle. Light car type rims are used with specially large oversize tyres. Aluminium foot-boards of a very handsome design are fitted, and an extremely rigid tool box is carried as on the 3 ½ h.p. o.h.v., i.e., on the mudguard, instead of on the more usual carrier, which is not fitted.

Finished in the Douglas blue, the side-car equipment includes apron, windscreen, dash, etc.; and the complete outfit, fully equipped with lamps, generator, horn, and licence card holder, is £165.

Embodying minor improvements only, the other and well-known models of the Douglas range will be marketed next year at prices which show a substantial reduction over the 1921 figures. The 4 h.p. outfit will be offered at £135 and at £110 solo, fully equipped. The 1922 3 ½ h.p. sports model is £130; the 2¾ h.p., with three speeds, clutch, and kick-starter, £90; and the ever popular little¾ h.p., with plain two-speed, at £75, also fully equipped. This is surely the most comprehensive range of fiat twins imaginable, embodying, as it does, four different engines.

The MotorCycle


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