2015 Triumph Thunderbird

The Thunderbird acquired Turner's rear fairing nicknamed the 'bathtub' on account of its shape. This unpopular feature, dropped quickly in the USA market, remained in ever-abbreviated forms for the home market until disappearing altogether for the final year of production, 1966.

The Thunderbird, along with Triumph's other 650 cc models, was given the Turner-designed unit engine. Throughout this time, however, the Thunderbird retained its distinctive nacelle.

But, likely as it was priced the same as the 750 cc version, suffered poor sales and was dropped from the range in late 1982. Planned

'export' models although the contact breaker points and drum rear brake remained. A trail version of the TR65, the TR65T, was also introduced

A custom-styled and further sleeved-down TR60 600 cc Thunderbird was exhibited but not produced, the co-operative closing down towards the end of 1983. The scheduled price for this model was £2,181.

–2010 Thunderbird model, Triumph marketed an alternative chromed clutch cover accessory featuring Edward Turner's original 'paper dart' Thunderbird logo and script which harked back to the chain case covers of the later pre-unit Thunderbird as pictured. The black-finished 2011 Thunderbird Storm mode…