The BSA A10 series was a range of 646 cc air-cooled parallel twin motorcycles produced by the Birmingham Small Arms Company at Small Heath, Birmingham, from 1950 to 1963. Bert Hopwood designed it after BSA, then the largest motorcycle manufacturer in the United Kingdom, fell behind in the 650 cc parallel twin race following the introduction of the Triumph Thunderbird. The Golden Flash, launched in October 1949, enlarged the A7 design with a 70 mm bore and 84 mm stroke and a single camshaft behind the cylinders, and a swinging arm frame arrived in 1954. Sports models such as the Road Rocket, Super Rocket and Rocket Gold Star followed, and the unit construction A65 models succeeded the series.
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Source BSA A10 series (Wikipedia)
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Source BSA A10 series (Wikipedia)Lead, manufacturerQuote, Lead, manufacturer
produced by Birmingham Small Arms Company at Small Heath, Birmingham
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Source BSA A10 series (Wikipedia)BackgroundQuote, Background
BSA, then the largest UK motorcycle manufacturer, was falling behind
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1. BSA A10 series (Wikipedia)
Lead
produced by Birmingham Small Arms Company at Small Heath, Birmingham from 1950 to 1963
Lead, body style
a range of 646 cc (39.4 cu in) air-cooled parallel twin motorcycles
Development, Engine
both pistons went up and down at the same time
Lead, status
The series was succeeded by the A65 unit construction models.
Lead, manufacturer
produced by Birmingham Small Arms Company at Small Heath, Birmingham
Background
BSA, then the largest UK motorcycle manufacturer, was falling behind
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