2017 Triumph Bonneville T120

By Triumph as "The Best Motorcycle in the World", the Bonneville T120 was aimed mainly at the lucrative US market, where enthusiasts were demanding extra performance. Initially produced with a pre-unit construction engine which enabled the bike to achieve 115 mph (185 km/h) without further modificat…

A stiffer and more compact unit construction model was introduced, with additional bracing at the steering head and swinging arm. The steering angle was altered and improved forks were fitted a couple of years later, which, together with the increased stiffness enabled overall performance to match t…

Triumph posted its most successful year in the United States with an estimated 28,000 T120s sold.

The T120 gained a new and more reliable ignition system.

T120 models used a new frame which contained the engine oil instead of using a separate tank (this became known as the oil in frame/'OIF' version). A five-speed gearbox finally was fully available by 1972, but competition from larger-capacity motorcycles led to the T120 being superseded by the 750 c…

Fewer than 1000 assembled 650cc machines were released by the workers, with another 38

. Production of the T120 was not resumed following the sit-in, the Meriden Motorcycle Co-Operative created after the dispute concentrating upon the 750cc twins instead.