LOT 224
c.1966 Triumph 650cc T120 Bonneville 'TT Special' Project (see text) Registration no. not registered Frame no. T120TT DU31350 Engine no. T120TT DU31350 (see text)
Sold for £6,900 inc. premiumLot to be sold without reserve
Lot 224
c.1966 Triumph 650cc T120 Bonneville 'TT Special' Project (see text)Registration no. not registered Frame no. T120TT DU31350 Engine no. T120TT DU31350 (see text)
The Autumn Stafford Sale: The Classic Motorcycle Mechanics Show|19 October 2019, 14:00 BST|Stafford, Staffordshire County Showground
c.1966 Triumph 650cc T120 Bonneville 'TT Special' Project (see text)
Registration no. not registered
Frame no. T120TT DU31350
Engine no. T120TT DU31350 (see text)
Registration no. not registered
Frame no. T120TT DU31350
Engine no. T120TT DU31350 (see text)
The café racer's favourite since its launch in 1959, the Bonneville continued as Triumph's top-of-the-range sports model after the switch to unitary construction of the engine/gearbox in 1963. An alloy cylinder head equipped with twin carburettors helped the 'Bonnie' motor produce 46bhp at 6,500rpm, and the model was reckoned good for a top speed approaching 120mph. The USA had long been Triumph's most important export market, and to cater for local tastes a 'TT Special' (also known as the 'Competition Sports') Bonneville was introduced in 1964. The Triumph twin was already a formidable force in American flat-track racing, and the TT Special's stripped-down look, smaller fuel tank and short, open exhaust pipes echoed the style of the racers. By this time a maximum output of 52bhp was claimed for the Bonneville, while the TT Special engine produced 54bhp courtesy of 11.2:1 pistons (up from the T120 roadster's 9.0:1). A crankcase under-shield, tachometer-only instrumentation, larger-section front tyre, and an absence of lighting further distinguished the TT, which came with lowered overall gearing reflecting its intended role as primarily a dirt bike. It should be noted that the 'TT' engine number stamping on this machine does not appear to be factory original. Accordingly, prospective purchasers should satisfy themselves with regard to the origin and correctness (or otherwise) of this motorcycle's component parts prior to bidding. There are no documents with this Lot.
Footnotes
As with all Lots in the Sale, this Lot is sold 'as is/where is' and Bidders must satisfy themselves as to the provenance, condition, age, completeness and originality prior to bidding.


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