Triumph Trident T150, 1973. The Breadbox, The Trident's modernistic styling was, at the time of its unveiling (1973), not universally appreciated, particularly in America. In fact, the angular lines expressed by the Trident were forced off the table a year later. However, in retrospect, it is evident that the clean angular aesthetic Triumph had developed foreshadowed many of the tightly cut designs of the late '70s and early '80s.