To many enthusiasts the FN 1905 four has always been one of the most appealing machines of veteran and vintage times. Its production ran from 1905 till 1926. The earliest type had a 363cc engine with an automatic overhead inlet valves and side exhaust valves. The machine was single geared, had shaft drive and the top speed was about 60 km/hour. The earliest four-cylinder FN motorcycles was used by Osmont on a widely publicised journey through Europe in November 1904 in Paris.
Except that the front fork was unsprung, the machine was similar to the first production model for 1905: the "Type A". The major dating points for this model are the finless cylinder heads, the absence of windows to check the oil level in the crankcase, and the straight inlet manifold that curves down to meet the carburettor mounted behind the cylinders The FN four was an immediate success and found customers all over the world. It found many customers in the US and made Americans interested in the 4-cylinder concept.
Percy Pierce purchased a 1908 model on one of his trips to Europe and the FN became a point of reference for the first Pierce Four in 1909. This machine is equipped with period horn and acetylene lighting and has been restored with the utmost care. More specs and user manual of FN 1905 four you can see in next overview.