Deronziere Autocyclette 1906

1906 Deronziere Autocyclette 282cc. Deronziere motorcycles were built in France between 1903 and 1914. The company was based at 8, rue Dumont d'Urville, Lyon. They were using 282cc engines of their own design as well as motors from Peugeot and Zedel.

This example is equipped with Deronziere engine kit sold separately to be fitted to a purchaser’s own bicycle. It has an automatic inlet valve and mechanically operated exhaust valve as was common with many French machines at the time. Below you can see description of Deronziere motorcycle engine dated 1906. Here a special feature is the ignition system, a make and break system in the cylinder head instead of the usual points in the magneto. There is a spark plug in the cylinder head, but that only has a central electrode. This feature does not exist in Deronziere auxiliary engine, though.

The vehicle has been restored.