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 Galbusera - 250 Speedway
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Photo ou archives : D. Ganneau

Capacity : 250
Model : Speedway
Production : 1934 -
Category : (Off-Road) Speedway & other


250 Rudge Dirt Track - 1934

Italian flair, British heart

In 1934, Plinio Galbusera began building machines fitted with British power units. The engines came from Sturmey-Archer and especially Rudge (efficiently represented in Italy by the Miller company). The gearboxes were Burman or Sturmey units and the whole was designed (and often raced) by Adolfo Mannara. Galbusera production was always small.

End of the line

Just before WWII, the range included 350 and 500 side-valve singles with MM motors. But in 1940, it shrank to a handful of three-wheeled utility vehicles with crude power units, either big-singles or little four-cylinders of automobile origins. Then, until the end of 1955, little Sachs-engined machines were built. All these crude machines were a poor reflection of the passion that drove Plinio Galbusera to squander the little money that building motorcycles had brought him.

An Italian Legend

The great legacy left to motorcycling history by Galbusera consists of the legendary 250cc V-4 and 500cc V-8 bikes shown at the Milan Salon in 1938. These two machines – which sadly have not survived – had supercharged two-stroke engines with longitudinal crankshafts. On the 500, the gearbox was mounted transversely between what could be called the front V-4 and the back V-4 and driven by bevel gearing from these engines, which rotated in opposite directions. This highly original layout had been designed by an Egyptian named Marama Toyo, who lived at Trieste and was killed after WWII riding in a speedway race.


Engine: 249cc (62.5x81 mm) air-cooled single-cylinder four-stroke

Valves: overhead radial valves

Fuel System: carburetor

Transmission: 4-speed, chain final drive

Suspension: telescopic forks (front); rigid (rear)

Wheels: 3.00x21 inch (front); 3.00x19 inch (rear)

Weight: 220 lb

Maximum Speed: 60 mph

In their maker's quest for perfection, the first Galbuseras were f-itted with the best proprietary engine available, the radial-valve Rudge single.

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.