The Triumph X-75 'Hurricane' motorcycle, introduced in 1972, was a collaborative project between Triumph Motorcycles and BSA (British Small Arms Company), both of which were part of the Norton-Villiers-Triumph (NVT) conglomerate at the time. The X-75 'Hurricane' was designed by Craig Vetter, an American designer, and it combined elements from both Triumph and BSA motorcycles.
In terms of the mechanical components, the X-75 'Hurricane' was more closely related to Triumph motorcycles. It utilized the engine and frame from the Triumph Trident, a three-cylinder motorcycle, which was a flagship model of Triumph Motorcycles at the time. The engine had a displacement of 750cc, providing the power for the 'Hurricane.'
The fuel tank, for example, featured a shape reminiscent of BSA models, and the rear section of the bike had a distinctive tailpiece design that differed from typical Triumph motorcycles of the era.
While the X-75 'Hurricane' was technically a Triumph motorcycle, it incorporated some design elements from BSA, which was also part of the NVT group. The collaboration between the two brands resulted in a unique motorcycle that stood apart from the mainstream offerings of both Triumph and BSA.