Bradshaw Dot

   To return from this digression to the mid-twenties an interesting development now began which was to occupy Dorman well into the next decade; in 1925 the company purchased, from James Walsmley and Co. of Preston, the design, engine stocks, components, jigs, patterns and tools for the new Bradshaw motor cycle engine.

   At a time when the popularity of the motor cycle was increasing everywhere due to the heightened public interest in trials, speed events and competitions




such as the T.T. races on the Isle of Man, the Bradshaw engine of simple advanced design, was generally held to have a bright future. Naturally it was with a sharp eye on this future, and with another on the motor cycles growing appeal to a public fascinated by the new opportunities for personal mobility that Dorman made their investment. It was a decision which was to serve the company until well into the Thirties; the Bradshaw engine; a 350 c.c., 2.75 horsepower type was to rapidly establish itself as a production unit not only for motor cycles but for a




Bradshaw Auto Truck

Field Service Engineer

Auto-truck fitted with Bradshaw motor cycle engine.


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Booklet home page                 Page index                    Pages 20 & 21                    Pages 24 & 25

Dorman Centenary CB 20-21 CB 24-25

The Dorman entry did not finish in first, second or third place however a fine performance was achieved which was to be repeated over and over again in races, performance trials and other events over the course of the next few years by motor cycles employing special sports models of the Bradshaw engine.

Ultimately Dorman could boast that they supplied the engine for popular motor cycle models of all types (solo, sidecar sports and touring) including names such as O. K., Dot, Excelsior Nenith, New Seale, Matador, Toreador, Sparkbrook, Cedos and Montgomery.



variety of industrial Applications.
   Dorman were themselves to experiment with it, both as a motive power unit for a small truck and as the petrol starter for a diesel engine.
   Meanwhile Dorman mechanics had gone to the Isle of Man, in 1928 to service a Bradshaw engined motor cycle at the island's Tourist Trophy races, the same year. Considering that the firm's experience of motor cycle engine production was at this point only one year old it was possibly not surprising that this venture, while bold, proved unsuccessful insofar as  





Dot motor cycle fitted with a Bradshaw engine.

Dorman field service engineer with Bradshaw-engined Toreador motor cycle and sidecar.


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