The Triumph Thunderbird is a British motorcycle that was introduced by Triumph in 1949 and produced in many forms until 1966. The name was used three more times for new and distinct Triumph models.
The 6T Thunderbird was launched publicly at near Paris, where three standard-production bikes were ridden around a circuit by a team of riders who between them averaged a speed of 92 mph (148 km/h) over a distance of 500 miles (800 km). All three machines were ridden to the circuit and back to the Meriden factory
Triumph obtained further lasting publicity with 's 1953 motion picture The Wild One, in which he rode a 1950 6T Thunderbird. In the book Triumph Motorcycles In America, there is reproduced a letter from Triumph's importers objecting to the producers as to the use of their machine in this film about rowdy motorcycle gangs.