F.N. started making 4-cylinder cardan-powered motorcycles in 1905. The number of cc's started with 362cc and increased to 700cc in 1920. In 1921 a new model with 750cc head and side valve engine was introduced. At the end of 1923 this model was replaced by the M50 (with chain drive) which was much larger and more cumbersome for sidecar use.

This is an older restoration that has been driven a lot. Starts and runs very well. Previous owner has replaced the gas mannet by a rotary shaft.