This '73 Triumph Trophy Trail is an very good example of this rare dual sport machine developed from the BSA B50MX chassis and the venerable twin-cylinder Triumph 500cc. The light, nimble, good-handling chassis, paired with the smooth, torquey Triumph mill produced a wonderful trail bike which could be race tuned for higher performance or all-out competition.
This matching numbers example is roughly 98% stock. The main alterations were the removal of the damage-prone turn signals and the swapping of the original, overly large tail light for a low-profile Lucas-style unit, much better for offroad use (better looking too). Everything else is original, even the paint on the aluminum tank, which shows some wear and stains. There is one small ding on the upper right side, easily removed by a paintless dent remover tech. The chrome is original and mostly very nice; there's a area on the rear of the front fender where it is discolored and some scratches on the top. The frame has typical scratches and chips and has been touched up. The bike marks its spot in usual British fashion. It's not a show bike, but a clean, original rider. Speedo, tach and lights work. It still has the original ignition switch and key. The Trials tires are almost new, the battery is new, fresh engine and gearbox oil change. It starts with one kick. See cold start here: