In Brief:

  • Tidy example of a 6T Thunderbird
  • Finished in Grey with chrome detailing and a contrasting Black seat
  • Owned by the current registered keeper for the last 6 years
  • Just 3 former keepers
  • A more powerful evolution of the Speed Twin

On the Surface:

This tidy example of a 1959 Triumph 6T Thunderbird presents nicely in Grey with chrome detailing and a contrasting Black seat.

Maintenance & History:

With just three former keepers, this 6T Thunderbird boasts a notably low ownership history for a motorcycle of its age. The current keeper has cherished the bike for the last six years, contributing to its preserved and appealing condition.While no history is on file, its clean condition and long-term ownership suggest it has been well cared for.

The Model:

The Triumph Thunderbird 6T was introduced in 1949 as a more powerful evolution of the Speed Twin, featuring a 650 cc parallel twin engine aimed at satisfying the performance demands of the American market. Its reputation was further cemented by Marlon Brando’s appearance aboard one in The Wild One, turning the 6T into a cultural icon. Production continued through various iterations until 1966.

Sale Insight:

A handsome and increasingly collectible example, this 1959 Triumph 6T Thunderbird offers a great opportunity for enthusiasts seeking a classic British twin.

Estimate:
No Reserve

Key Facts


  • Lot 27

  • Thursday 31st July 25

  • TRIUMPH 6T THUNDERBIRD

  • 650

  • 1959

  • 25,502 Miles

  • RJY573

  • September 1959


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July 25

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Featured Lot

Summer Classic & Performance Auction

Thursday 31st July 25 at 10:00

Viewing Dates:

Saturday 26th July: 9am-11:30am
Monday 28th July: 8am-3:30am 
Tuesday 29th July: 8am-3:30pm
Wednesday 30th July: 8am-3:30pm

Earlier viewing dates available upon request

FREE ENTRIES CLOSE: 04/07/2025

PAID ENTRY WINDOW: 05/07/2025-14/07/2025