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 Jawa - 350 OHV Special
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Jawa OHV Special motocyclette motorrad motorcycle vintage classic classique scooter roller moto scooter
Photo ou archives : D. Ganneau

Capacity : 350
Model : OHV Special
Production : 1935 - 1937
Category : (R) Street Bike


350 OHV Special-1935

Czech with an English accent

As soon as British designer G.W. Patchett arrived at ]awa, he began working on an electric-start, shaft-driven, side-valve 350. It was intended to be a replacement for the

marque's first 500.

Winning Formula

By 1933, however, the Depression showed no signs of lifting, and - in view of the success of his 175 - Patchett sensibly decided not to abandon a winning formula . He ended up basing his new 350 project on the model that had initially brought him success.

Extremely Desirable Motorcycle

The 350, which appeared in 1934, omitted the costly refinements of the prototype. It got by with a total-loss oiling system. Only the semi-unit constructed gearbox and the up-to-the-minute cycle part revealed that this was, in spite of everything, an extremely desirable motorcycle. 2,500 examples were sold until 1936, and this modern motorcycle was backed up in 1935 by the overhead-valve version illustrated. Initially destined for competition work, it stood out by reason of its magnesium gearbox cover. As for the engine, only the cylinder and head differed from the original version. Reliability (notably on the lubrication front) proved a bit of a problem at the outset. As for the cycle part, the forks were slightly strengthened, but the

frame was barely modified overall. Despite the success of this second-generation 350 - only 2,700 units were sold unti11946. Patchett left the firm in 1938 to return to his native England. He gave up designing motorcycles and joined the armaments industry, which was no doubt more profitable at that time.


Engine: 346cc (70x90mm) air-cooled singlecylinder four-stroke; magneto ignition

Power Rating: 15 hp @ 4500 rpm

Valves: overhead

Fuel System: carburetor

Transmission: 4-speed, chain final drive

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

Brakes: drum (front & rear)

Wheels: 3.25x19 inch (front & rear)

Weight: 313 lb

Maximum Speed: 72 mph


Reassured by the success of its 175 after the dismal experience of the 500, Jawa reappeared on the sports scene with this fine machine and its pressed steel frame.

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.