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 Triumph - 650 T 120 R Bonneville
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Photo ou archives : F-M. Dumas
701

Capacity : 650
Model : T 120 R Bonneville
Production : 1968 - 1969
Category : (R) Street Bike

Triumph

650 Bonneville T 120 – 1969

One of the most famous british bike

In 1937 Triumph announced a new bike that took the world by storm. Designed by the famed Edward Turner, the 500cc vertical-twin Triumph Speed Twin was so successful that it set a fashion that was quickly followed by all the other major British manufacturers.

Grand Prix Victory

In 1940, during World War II, the Triumph factory in Coventry was blitzed. Production shifted to a new factory at Meriden. The geographical center of England, where military engines with silicon-aluminum cylinder and head based on the Speed Twin were built. Postwar, a Tiger 100 vertical twin with this design won the 1946 Manx Grand Prix. By 1949, British bikes were becoming popular in the United States, and a special American-market Triumph twin, the 650cc Thunderbird, went into production. Triumph became part of the BSA group in 1951.

World Speed Record Breaker

The Triumph twin enjoyed remarkable sporting success and set world speed records on the Bonneville Salt Flats in Utah. In 1955, Triumph power set a speed record of 193 mph and in 1962 raised the record to almost 225 mph. Though the record-breaker was a cigar-shaped projectile on two wheels, from then on Triumph named all of its twin carburetor sports bikes "Bonneville" to commemorate the event. The BSA group collapsed in 1973 and Triumph merged with Norton-Villiers.

SPECIFICATIONS

Engine: 649cc (71x82mm) vertical-twin four stroke

Power output: 47 hp @ 6700 rpm

Valves: overhead valves

Fuel system: twin 1.2 in Amal carburetors

Transmission: 4-speed gearbox; chain final drive

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

Brakes: (front) two-leading shoe 8 in drum; (rear) two-leading shoe 8 in drum

Wheels: wire; (front) 3.00x19 in; (rear) 3.50x18 in

Weight: 386 lb

Maximum speed: 106 mph

 

One of the most famous Triumph models, the Bonneville vertical twin was a high-performance bike with tremendous bottom-end torque.”




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.