Cast iron crankcases
Intake over exhaust (IOE).
The intake/inlet over exhaust (IOE) engine, also known as F-head (in the USA) and pocket valve.
Atmospheric intake
Believed to be 244cc
Belgian made
Sight glass
Rare updraught carburetor
Early FN Motorcycle history
FN (Fabrique Nationale de Herstal) was a Belgian company established in 1889 to make arms and ammunition, and from 1901 to 1967 was also a motorcycle manufacturer. FN manufactured the world's first four-cylinder motorcycle, was famous for the use of shaft drive in all models from 1903 to 1923, achieved success in sprint and long distance motorcycle racing, and after 1945, also in motocross
In 1899 FN made shaft- and chain-driven bicycles, and in 1900 experimented with a clip-on engine.
The 1907 single-cylinder 244 cc FN motorcycle was the first bike with a multiple-ratio belt drive system, using a patented variable-size engine pulley.
Made in Belgium.
The 1907 single-cylinder 244 cc FN motorcycle was the first bike with a multiple-ratio belt drive system, using a patented variable-size engine pulley.
Made in Belgium.
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