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The BSA Blue Star is a British 
The B33-3 O.H.V. 249cc Blue Star was called the ''Blue Star Junior'' and the R33-5 348cc O.H.V. Blue Star was known as the ''Sporting Blue Star''. It was the W33-8 (Q21 in 1936) 499cc O.H.V. that became the most popular, however, and led to the development of the '' Gold Star''.It was known as the "sea beezer" and it was BSAs fifth best seller.
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 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. ...
, 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 ...
. The Blue Star range was produced between 1932 and 1936. In 1936 a slightly uprated sports version called the BSA Empire Star
The Empire Star was a standard motorcycle made by BSA at their factory in Small Heath, Birmingham. Named to commemorate the Silver Jubilee of King George V of the United Kingdom and advertised as ''The Masterpiece of the Industry'', the Empir ...
was launched with the Blue Star remaining in the model range and called the “New Blue Star, Q21”. The Blue Star became known for its reliability and handling. In 1937 an entirely new engine designed by Val Page featured in the Empire Star and the Blue Star was dropped from the range. The Empire Star developed into the famous Gold Star in 1938 (also known as the M24)..
The B33-3 O.H.V. 249cc Blue Star was called the ''Blue Star Junior'' and the R33-5 348cc O.H.V. Blue Star was known as the ''Sporting Blue Star''. It was the W33-8 (Q21 in 1936) 499cc O.H.V. that became the most popular, however, and led to the development of the '' Gold Star''.It was known as the "sea beezer" and it was BSAs fifth best seller.
References
Blue Star Motorcycles introduced in the 1930s Single-cylinder motorcycles {{motorcycle-stub