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British Motorcycles

St. George's Motorcycle Co

SGM, (from the initials of St. George's Motorcycle Co of Birmingham) was a motorcycle produced in 1919.

This was an early post-World War I machine fitted with a 634cc Norton Big Four engine and three-speed Sturmey-Archer gearbox with belt final-drive. The long wheelbase frame had sprung forks.


Sources: Graces Guide



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Allen Motorcycle Museum
Allen Motorcycle Museum
Private museum in Boston, MA, with many highly collectable vintage motorcycles for sale.