Triumph Bonneville T140 Bloor, who licensed a company called Racing Spares in Devon, run by Les Harris to manufacture the T140 Bonneville. These continuation bikes are known as the 'Devon Bonnevilles', which did not reach the market until 1985, and were not sold in the U.S. Production ended in 1988. The Bonneville name came from the achievements of Texas racer Johnny Allen on the Bonneville Salt Flats in Utah in the 1950s. The model designation of T140 continued the numbering system started by Edward Turner in 1937 with the Triumph Tiger 70, a number that was intended to advertise the machine's top speed
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