The Bonneville T120 was the first model of the Bonneville series, built by Triumph Engineering from 1959 to 1975 before the 750 cc T140 replaced it. It uses a 649 cc air-cooled overhead-valve 360-degree parallel twin of 46 bhp at 6,500 rpm, with a four-speed gearbox and chain final drive. Here we have a 1966 Triumph T120 in white with a red stripe.