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Royal Ruby Motorcycles

Royal Ruby 1920 Models

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Royal Ruby at the Olympia Show 1920

The front sidecar connecting bolt of the Royal Ruby passes through the engine bearer plates, and thus clamps them together.
The lubrication system of the Royal Ruby provides a supply of oil to the rear of the front cylinder.

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8 h.p. Royal Ruby-Jap 1920

The spring frame 8 h.p. Royal Ruby-Jap. Fitted with a three-speed gear and enclosed chain drive, this mount is specially suited for passenger work.

Olympia Show 1920

Royal Ruby. (Stand 125.)

  • 8 h.p.; 85.5x85 mm. (976 c.c); twin-cylinder four-stroke; side-by-side valves; drip-feed lubrication; Amac or B. and B. carburetter; chain-driven magneto; three-speed Sturmey-Archer gear; all-chain drive; Dunlop 28x3in. tyres. Price £235.

Ruby Cycle Co., Ltd., Royal Ruby Works, Altrincham.

Notable for its excellent system of springing, employing laminated leaves for both front and rear wheels, both the 3 h.p. and 5 h.p. Royal Ruby are again attracting the attention of prospective buyers. A very fine sidecar outfit is the leading feature of the stand, and employs an 8 h.p. J.A.P. engine. Notable points in the construction of the machine are the locking plates on the spring fork shackles. These enable the shackle bolts to have dome-ended nuts on them, thus preventing the ends of the bolts from getting rusty. A strengthened front down tube, which consists of a main central tube with a single tube of smaller section on each side of it, is another distinctive feature, while another good point is the well-designed spring housing below the saddle, and the double down tubes from it; one goes to the rear engine plate and the other to the front end of the chain stays, immediately behind the gear box.

The back stays also are double, and, in fact, the whole frame gives a fine impression of strength without excessive weight. The springing system is adjustable to the weight of the rider, and the sidecar is beautifully sprung.

  • 2¾ h.p.; 74x80 mm. (349 c.c.); single-cylinder four-stroke; side-by-side valves; drip-feed lubrication; Amac or B. and B. carburetter; chain-driven magneto; two-speed Royal Ruby gear; chain and belt drive; Dunlop 26x25in. tyres. Price £89 5s.

The small four-stroke machine, which has been introduced as a sporting solo mount, is designed on similar lines to the sidecar outfit as far as the front part of the frame is concerned, but the spring frame is not embodied in it. The engine appears to conform to all the standards of modern design, and the gear box, which is also made by the firm, is a very good example of the sliding gear type. The weight of the machine is well under the 200 lb. limit, so that the tax will be only 30s. An alternative model provided with the spring frame is also made; this will have a new engine of slightly larger capacity, and will be sold at £120.

Olympia Show, 1920
The Motor Cycle, December 2nd, 1920. Page 697