Montgomery Motorcycles was a pioneering British motorcycle manufacturer. Originally based in Bury St Edmunds, Suffolk, following the First World War manufacturing was moved to Coventry.^[1] Its founder William Montgomery was an innovator and is credited with the invention of the sidecar.^[1] Like Brough, Montgomery made use of the best proprietary components from other specialist companies and concentrated on the production of frames and forks in-house - and Montgomery supplied a number of frames and its own sprung fork to George Brough.^[2] In an advert from the time, Montgomery claimed "These Montgomery machines are for the men who prefer a distinctive mount in appearance and performance. That extra degree of soundness – those little touches which distinguish the 'super' machine from the mere motorcycle, come naturally to the Montgomery and at a price that is amazingly low."^[3]

The first bike from Montgomery Motorcycles was a flat twin produced in 1913 with a Morton and Weaver engine. The First World War halted production, which did not resume until 1922 in Coventry.^[4] William Montgomery continued to experiment with sidecar design and actually competed himself in the 1923 Isle of Man TT sidecar race.^[5] The entire Montgomery works was destroyed by fire in 1925^[1] but were able to eventually recover and by 1930 were a leading producer of quality two-stroke and four-stroke motorcycles. The top of the range was the Greyhound, finished in a special grey enamel paint. The Second World War brought an end to all production and Montgomery ceased trading in 1939.^[4]