Triumph Bonneville T120 was based on the American X-15 rocket plane. In 1966 Detroit Triumph dealer Bob Leppan raised the record to 245.66 mph (395.3 km/h) with his Gyronaut X-1, powered by two 650 cc Triumph engines. For the next few years, Triumph fitted Bonneville roadsters with "World's Fastest Motorcycle" stickers. 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
Bonneville Dam second powerhouse (and dam structure) was started in 1974 and completed in 1981. The second powerhouse was built by widening the river channel on the Washington side, creating Cascades Island between the new powerhouse and the original spillway. The combined rated capacity electrical output of the two power houses at Bonneville is now 1.2 gigawatts. Despite its world record size in 1938, Bonneville Lock became the smallest of eight locks including seven built subsequently at different locations upstream on the Columbia and Snake rivers; eventually a new lock was needed at Bonneville. This new structure was built on the Oregon