The BSA B21 was a British

motorcycle A motorcycle (motorbike, bike, or trike (if three-wheeled)) is a two or three-wheeled motor vehicle steered by a handlebar. Motorcycle design varies greatly to suit a range of different purposes: long-distance travel, commuting, cruising ...

made by

Birmingham Small Arms Company The Birmingham Small Arms Company Limited (BSA) was a major British industrial combine, a group of businesses manufacturing military and sporting firearms; bicycles; motorcycles; cars; buses and bodies; steel; iron castings; hand tool, hand, po ...

(BSA) at their factory in

Small Heath Small Heath is an area in south-east Birmingham, West Midlands, England situated on and around the Coventry Road about from the city centre. History Small Heath, which has been settled and used since Roman times, sits on top of a small hill. Th ...

Birmingham Birmingham ( ) is a city and metropolitan borough in the metropolitan county of West Midlands in England. It is the second-largest city in the United Kingdom with a population of 1.145 million in the city proper, 2.92 million in the West ...

. Production started in 1937 and ended with the outbreak of

World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...

in 1939.

Development

After World War I, BSA started designing new models and began exporting motorcycles to the colonial countries. During the depression of the 1930s, the BSA range was reduced and in 1937

Val Page Valentine Page (1891–1978)World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...

started, the Military

BSA M20 The BSA M20 was a British motorcycle 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 servin ...

with a side valve engine of 500cc took over and the B21 was discontinued.

References

External links

1939 BSA B21
B21 Motorcycles introduced in the 1930s Single-cylinder motorcycles {{Motorcycle-stub