BSA M20

BSA M20 / M21
ManufacturerBirmingham Small Arms Company
Production1937–1955
Engine496cc single cylinder side valve 4 stroke
Bore / stroke82 mm × 94 mm (3.2 in × 3.7 in)
Power13bhp @4,200 rpm
Transmission4 Speed / chain
Fuel capacity3 gallons
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The BSA M20 is a British motorcycle formerly made by Birmingham Small Arms Company (BSA) at their factory in Small Heath, Birmingham. Although initially viewed as a near failure by the War Office in 1936, the M20 evolved into one of the longest serving motorcycles in the history of British military motorcycling, as well as becoming the most numerous type produced for World War II with 126,000[1] in active service. Many are still in use around the world today.[2]

  1. ^ Cite error: The named reference Mirco was invoked but never defined (see the help page).
  2. ^ Kemp, Andrew; De Cet (2004). Classic British Bikes. Mirco. Bookmart Ltd. ISBN 1-86147-136-X.

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