
LOT 15
1961 Triumph 650cc Thunderbird Registration no. BSL 249 Frame no. 11401 Engine no. 6T D11401
Sold for £3,680 inc. premium
Lot 15
1961 Triumph 650cc ThunderbirdRegistration no. BSL 249 Frame no. 11401 Engine no. 6T D11401
1961 Triumph 650cc Thunderbird
Registration no. BSL 249
Frame no. 11401
Engine no. 6T D11401
Registration no. BSL 249
Frame no. 11401
Engine no. 6T D11401
Always a step ahead of their rivals, Triumph followed up the trend-setting Speed Twin 500 of pre-war days by being first in the field with a 650cc parallel twin. Announced in September 1949, the 650 Thunderbird was Triumph's response to demands for more power emanating from American racers and British sidecarists alike. When displayed at the Earls Court Show in October, the new 650cc twin featured the headlamp nacelle and fuel tank with luggage grid first seen on Triumphs the previous year. An interesting change to the Thunderbird for 1952 was the adoption of an SU carburettor in place of the original Amal, a specially prepared machine managing a staggering 155mpg at a steady 30mph on a factory organised economy run. The model remained in production in fundamentally its original form, though with progressively updated cycle parts, until the arrival of the unitary construction 650 range in 1962. One of the most significant developments along the way was the introduction of a swinging arm frame for 1955, but prior to that time Triumph twins could be ordered with the optional 'sprung hub' - designed by the Speed Twin's creator Edward Turner - that offered a limited amount of rear suspension movement.
Purchased for the collection in 1986 (sales receipt on file), this late Thunderbird has been painted to resemble a Bonneville. Additional paperwork consists of old/current V5/V5C documents.
Purchased for the collection in 1986 (sales receipt on file), this late Thunderbird has been painted to resemble a Bonneville. Additional paperwork consists of old/current V5/V5C documents.
Saleroom notices
The frame number is D11401. Believed to be an older restoration, the machine will require recommissioning and detailing. Please click the link to view the walkaround video of Lot 15: click here


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