![fn 1905 diagram fn 1905 diagram](https://i.ebayimg.com/images/g/UU0AAOSwIbtcP6wQ/s-l300.jpg)
įor the US market, the 1908 model was upgraded and released as a 1908 1⁄ 2 model, called the F.N. In 1910 the engine was redesigned and enlarged to 498 cc (30.4 cu in), the carburetor was moved and a new oiling system was used. īy 1908, it had a two speed transmission with a plate clutch, overcoming the speed limitations of the earlier model. It had a 5:1 reduction ratio to 26-inch wheels. The 1905 model had a high-tension Bosch magneto ignition, : 43 a spray carburetor, and a rear coaster brake operated by the pedals. The rider started the engine by pedaling bicycle style pedals with a chain drive and sprockets to the rear wheels. It had a single-speed shaft drive turned by a bevel gear. In 1909, a two-speed transmission was offered, then three-speed in 1914 with the 748 cc engine. The motorcycle was originally single-speed. It was a commercial success upon release, with production increasing over its twenty-year run. The motorcycle was developed in 1904, tested late that year, and had its public debut at the 1905 Paris Motorcycle Show. It was also, at 40 miles per hour (64 km/h), the world's fastest production motorcycle from 1911 until 1912. The FN Four was the world's first production inline-4 motorcycle, manufactured in Liége by Fabrique Nationale from 1905 until 1923. 350-750 cc (max) inlet-over-exhaust with compression release