Triumph announced the ultimate expression of Edward Turner's 650cc pre unit twin in September 1958 ready for the 1959 season. Named the Bonneville in recognition of Triumph's record breaking success at the salt flats of the same name, the new machine replaced the Tiger 110 at the head of the sporting Triumph range. The significant difference between it and the Tiger 110 concerned the cylinder head which was fed by two carburettors on splayed inlets together with a higher compression ratio, resulting in a claimed 46bhp.
The 1960 season machines adopted a new duplex frame and lighter styling, losing the headlamp nacelle and partially valanced mudguards which had graced the 1959 models, with further detail revisions to the frame occurring for the 1961 model season.
This example is described by the vendor as being in good condition throughout having been restored during 2006. It is offered with a V5 registration document and a road fund licence valid until the end of November 2007.
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