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Dickinson (sometimes spelt Dickenson) were motorcycles produced from 1902 to 1905 at the Toledo works, Aston Brook Street, Birmingham by B. E. Dickinson.
The machine took the form of a bath-chair and had a single front wheel, which carried, and was driven by, the engine, with friction drive to the front tyre. The earliest versions had a two-stroke engine, later to be replaced with a 2.5hp four-stroke Morette, positioned on the left of the wheel. Transmission was a mixture of flywheel friction and then chain to the hub. The starting mechanism was via a pull-cord from the seat.
In 1902 there was also a heavier, 4hp twin-cylinder version, with a slightly different transmission system.
The British Motorcycle Directory - Over 1,100 Marques from 1888 - by Roy Bacon and Ken Hallworth. Pub: The Crowood Press 2004 ISBN 1 86126 674 X