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 AJS - 500 Silver Streak
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Photo ou archives : F-M. Dumas

Capacity : 500
Model : Silver Streak
Production : 1938 -
Category : (R) Street Bike


500 Silver Streak – 1938

All in the family

The AJS range displayed at the 1938 London Motorcycle Show, held at Earls Court for the first time, comprised no fewer than 16 different models, from a 250 single to a 990cc V-twin. But the main attraction on the AJS stand was the new Silver Streak sports single.

Silver Single

Matchless had acquired AJS in 1931 to create Associated Motor Cycles and had long used the model prefix "Silver" (as on the narrow-angle 400cc V-twin Silver Arrow and the 600cc V4 Silver Hawk). Now the designation was being applied to an AJS single.

Chief Designer

This was the last engine designed by Bert Collier, son of H. H. Collier, who founded Matchless in 1899. His other sons, Harry and Charlie, had many racing successes with Matchless machines before WWI. Bert had also been a very successful racer, but after completing his studies, became chief designer for the company between WW1 and WWli. The new engine was available in three capacities -250, 350 and 500cc -and was also used in three bread-and-butter models as well as the three sporty Silver Streaks. The latter models had specially-prepared engines, with a "hot" cylinder head, polished ports, a special exhaust system and a strengthened frame with good ground clearance, a sump shield and a beefed-up Burman box with a special bottom gear, plus lots of chrome to justify the name Silver Streak.


Engine: 498cc (82.5x93mm) air-cooled single-cylinder four-stroke

Power Rating: 22 hp @ 6000 rpm

Valves: overhead Fuel System: Amal carburettor

Transmission: separate Burman 4-speed, chain final drive

Suspension: Webb-type girder telescopic forks (front); rigid (rear)

Brakes: 7 inch drum (front & rear)

Wheels: 19 inch (front & rear)

Weight: 330 lb

Maximum Speed: 107 mph

In keeping with its name, the 1938 A]S Silver Streak was superbly finished with plenty of chrome and polished aluminum.

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.