Osborn were motorcycles produced in Lincoln from 1901 to 1909 by Frederick J. Osborn.
These early motorcycles were primitives with a 4hp engine hung from the downtube, and with a flat drive belt. There was also a four-speed engine pulley and the 1909 single had one fitted, plus an adjustor for the belt tension. Production ceased after that year.
Sources: Graces Guide, Phil Meggett
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