TRIUMPH THUNDERBIRD 6T (1954-1962) Specs, Performance & Photos

The Triumph Thunderbird 6T was a British motorcycle made from 1949 to 1966. It was also known as the TR65 and was intended to replace the Triumph Speed Twin. The Thunderbird name was used three more times for new and distinct Triumph models.

The bike was shown to the public at Montlhery, 26 km (16.2 miles) from Paris, where three standard bikes were ridden around a circuit with an average speed of 148 kph (92 mph) over a distance of 800 km (500 miles) and back to the Meriden factory.

In 1954, the British motorcycle manufacturer launched the Triumph Thunderbird, a motorcycle that featured several modifications, such as a new frame with a swingarm, replacing the rigid unit previously used, and a new look with a Shell Blue Sheen color scheme that retained the classic appearance.

The 1954 Triumph Thunderbird had installed a 649cc vertical twin OHC engine underneath its fuel tank that featured several internal changes, delivering an output power of 34 hw with a peak force at 6,500 rpm.

The bike's suspension system comprised a telescopic fork on the front with hydraulic damping and a swingarm with two Girling dampers, offering optimum suspension performance and handling.

In the braking department, the bike's wheels were fitted with front and rear SLS drum units, offering optimum stopping power.