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 Norton - 500 Manx short stroke
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Photo ou archives : F-M. Dumas

Capacity : 500
Model : Manx short stroke
Production : 1954 - 1961
Category : (R) Racing


350/500 - Manx – 1957

The longest career

 The Manx Norton combined a long career with a long record of success. Norton already had an impressive list of victories to its name when, in 1930, Arthur Carroll redesigned the firm's overhead-cam mode.

 Enter the International

Between 1931 and 1939, Nortons won race after race: in 1932, road-going versions of the works TT racers were added to the catalog in both 350 and 500cc forms. These were named "International." In 1937, the bronze cylinder head was replaced by an alloy head with twin overhead camshafts. The model's record in the Isle of Man TT was so impressive that to commemorate the company's 1938 victory a new version of the International was launched, called the "Manx." In 1938 the bore and stroke dimensions were altered and the girder front fork gave way to an undamped telescopic fork. Plunger rear suspension was added to create the famous "garden gate' frame.

 The Famous Featherbed Frame

The ultimate development of the Manx Norton came in 1950 when the "Featherbed" frame, originated by the McCandless brothers of Belfast, was introduced on the works racers, setting entirely new standards for handling. Detail improvements continued to be made up to the end of production in 1961, and even after that, the Manx was raced frequently, often defeating the new multicylinder machines.


• Engine: 500cc single-cylinder four-stroke

• Power output: 47 hp @ 6500 rpm

• Valves: twin overhead camshafts

• Fuel system: carburetor

• Transmission: 4-speed gearbox; chain final drive

• Suspension: (front) telescopic forks; (rear) swinging fork

• Brakes: (front) drum; (rear) drum

• Wheels: wire; (front) 19 in; (rear) 19 in

• Weight: 313 lb.

• Maximum speed: 125 mph

This 'short stroke" 350cc Manx Norton, dating from 1957, was one of the finest models in the Manx's long and distinguished history.

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.