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 Alcyon - 250 Motocyclette l?g?re
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Alcyon Motocyclette l?g?re motocyclette motorrad motorcycle vintage classic classique scooter roller moto scooter
Photo ou archives : F-M. Dumas

Capacity : 250
Model : Motocyclette l?g?re
Production : 1909 - 1914
Category : (R) Street Bike


250cc "light Motorcycle" - 1909

Popular lightweight

A motorcycle manufacturer since 1904, Alcyon of Courbevoie quickly achieved fame by winning the "Criterium du Tiers de Litre" in 1905 - a race for machines of 333cc or less.

Profane Genius

The marque's principal rider was the Italian Alessandro Anzani, an engineering genius who later found fame building aero-engines-one of which powered the first airplane to fly across the English Channel. He was also famed for the awesome profanity of his language!

From the Wild to the Tame

But while Alcyon's reputation was created by the marque's sports exploits, the company quickly realized that there was a considerable market for a tamer kind of two-wheeler. In 1906, in response to the demand from customers who found their motorcycles too fast and heavy, Alcyon launched its first "Light Motorcycle," a 250 powered by a coil-ignition 2 hp Zedel engine. It weighed less than 80 lb and cost just $130. Its success sparked the production of an even smaller and cheaper motorcycle, the $122 "Gasoline Bicycle," still Zedel-powered, with an automatic intake valve and coil ignition, but only of 200cc. But Alcyon had aimed too low - its customers found its 18 mph top speed not fast enough. As a compromise, in 1909 Alcyon launched a new "Light Motorcycle" costing around $158. This had a mechanically-operated intake valve and Bosch high-tension magneto ignition, giving it more power. Its success was immense and Alcyon centered output on this model, which, with a new fuel tank and fork, was built until 1914.


Engine: 247cc (62x82mm) air-cooled Zedel single-cylinder four-stroke; Bosch magneto

Power Rating: 2 hp

Valves: side

Fuel System: carburettor

Transmission: direct belt drive

Suspension: rigid (front and rear)

Brakes: rim (front); belt rim (rear)

Wheels: 600x50mm clincher (front & rear)

Weight:93 lb

Maximum Speed: 37 mph

The modern design of the Alcyon "Light Motor-cycle" ensured its immediate success, and it was produced until the outbreak of WWI.

Le fichier Moto Passion réalisé par François-Marie Dumas réunit près de deux mille photos accompagnées d'un historique très complet des machines présentées.
Il sera progressivement mis à jour ici et toute information complémentaire est la bienvenue sur info@moto-collection.org.

Cette documentation unique, qui constitue sans doute l'encyclopédie la plus exhaustive jamais écrite sur l'histoire de la moto, a été réalisée avec l'assistance de nombreux spécialistes dont principalement Didier Ganneau, Christophe Gaime, Mick Woollett, Jean Goyard, Bernard Salvat, Christian Rey, Yves Campion, Helmut Krackowizer, Michael Dregni, Michel Montange, etc. que je remercie ici.

Disponible sur demande :
- Les fiches originales sur papier
- Les photos et archives signées de mon nom en haute définition ou les documents originaux.
Me contacter sur info@moto-collection.org pour les conditions et droits d'utilisation.