Date of Manufacture: 1983
Engine Size: 650CC
The original Triumph Bonneville was a 650 cc parallel-twin (two cylinder) motorcycle manufactured by Triumph Engineering Co Ltd and later Norton-Villiers-Triumph between 1959 and 1983. Initially it was produced as a pre-unit construction engine but later (1963), a unit construction model was made. It was named after the Bonneville Salt Flats in the state of Utah, USA, where Triumph and other motorcycle companies made attempts on the world motorcycle speed records. It was popular (particularly in its early years) for its performance, compared to other bikes available. Although later enlarged to 750 cc, in the late 1970s and early 1980s it suffered when compared to more modern and reliable Japanese motorbikes from Honda and other manufacturers. The T120 engine, both in standard configuration but especially customised for increased performance, was popular for installing in café racers, particularly Tritons but also Tribsas.
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