Triumph Bonneville T120 Triumph Bonneville T120 The Triumph Bonneville T120 was a Triumph Engineering motorcycle made from 1959 through 1975. It was the first model of the Bonneville series, which was continued by Triumph Motorcycles Ltd. The T120 was discontinued in favour of the larger-engined T140. It was brought back in 2016 with a host of updates. There were a number of models between 1973 and 2016 including Harris, and the new Hinckley models The Bonneville T120 was Edward Turner's last production design at Triumph (in retirement Turner designed the Triumph Bandit/BSA Fury which did not pass the prototype stage before BSA went
Bonneville Dam (Washington) side. Cofferdams were built to block half of the river and clear a construction site where the foundation could be reached. These projects, part of the Bonneville Dam were completed in 1937. Both the cascades and the old lock structure were submerged by the Bonneville Reservoir, also known as Lake Bonneville, the reservoir that formed behind the dam. The original navigation lock at Bonneville opened in 1938 and was, at that time, the highest single-lift lock in the world. Although the dam began to produce hydroelectricity in 1937, commercial electricity began its transfer from the dam in 1938. A