Back in the 1950s and 1960s, the «Bonnie», as she was affectionately called by her fans, was Triumph’s top seller.
A supersport machine that was mentioned in the same breath as the famous 1000cc Vincent Black Shadow, BSA Super-Rocket, Norton 650SS and BMW R69S.
Also no wonder. The T120, as the official model designation was, owed its nickname «Bonneville» to a spectacular record ride. In September 1956, Texan Johnny Allen roared across the Bonneville Salt Lake in the U.S. state of Utah at 344 km/h on a souped-up methanol-fueled 650cc Triumph called «The Devils Arrow. In his first attempt in 1955, the U.S. racer had reached a speed of «only» 311.
In honor of this success, the factory launched the 42-hp T120 Bonneville at the end of 1958. A machine that sold over 250,000 units over the next 30 years.