Old BSA M23 Empire Star 1937 500cc Motorcycle Running

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During the 1930s BSA concentrated on producing a range of dependable, well-made, competitively priced motorcycles. The firm’s single-cylinder range was redesigned by Val Page for 1937. source/image: classic-motorcycle.com The engines taking on many of the characteristics they would retain in the post-war era, most notably dry-sump lubrication, rear-mounted magneto and that distinctively...

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