BSA Model E

The BSA Model E was a British V twin motorcycle made at the Armoury Road factory in Small Heath, Birmingham, from 1919 until 1924, after BSA returned to motorcycles from First World War weapons work. It was the first of a successful series of V twins built around a reliable 770 cc side valve engine with its cylinders at 50 degrees, producing about 6 hp for a top speed of 55 mph, with BSA's own three speed gearbox and an enclosed chain. Valves were interchangeable with quickly adjustable tappets, and the wheels were detachable and interchangeable. It sold well with a matching green and cream sidecar, and about 100 small three wheeled taxis used its engine between 1920 and 1925. The 986 cc Model F largely replaced it in 1922.