Country: Great Britain
Engine: Air-cooled, vertical twin four stroke
Ignition: Lucas competition magneto
Power rating: 46bhp @ 6,500rpm
Bore x stroke: 71mm x 82mm
Displacement: 649cc
Valves: Overhead, pushrod activated
Fuel system: Two Amal 1-1/16 Monobloc carburetors with remote float bowl
Transmission: Four speed
Suspension: Front telescopic forks, rear twin shock
Brakes: Front and rear drum
Weight: 300 lbs
Top speed: 105mph
1959 was the first year of the Bonneville, recognizable by the headlamp nacelle, generator and remote fuel float bowl, these components only featured on this year’s model. The Bonneville got its name due to the success of a team from Big D Cycles in Dallas, Texas, that set a World Speed Record at the Bonneville Salt Flats in Utah with a Triumph powered steamliner. This superb example was sold new from Big D and restored by then 35 years later.
