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 Norton - Manx short stroke
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Norton D2-492-02-02
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.

Motorcycle encyclopedia Moto Passion, realised by François-Marie Dumas, include almost 2000 photos presented with an exhaustive history of the motorcycles exhibited.

This unique collection has been realised with the participation of many specialists. With many thanks in particular to Yves Campion, Michael Dregni, Didier Ganneau, Jean Goyard, Helmut Krackowizer, Michel Montange, Christian Rey, Bernard Salvat, Mick Woollett, etc

One can order here

  • Original cards on paper (in french)
  • High resolution scans or original documents presented and signed with my name.

Please contact me at for conditions and copyright.

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François-Marie Dumas

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