Skip to main content

LOT 363

1958 Triumph 498cc Speed Twin Registration no. 154 EKX Frame no. 017721 Engine no. 017721

Sold for £5,635 inc. premium

1958 Triumph 498cc Speed Twin
Registration no. 154 EKX
Frame no. 017721
Engine no. 017721

Although Edward Turner's Speed Twin caused a sensation when it appeared at the 1937 Motorcycle Show, few of its admirers can have guessed how influential the design would prove to be. True, there had been vertical twins before; indeed, Turner's predecessor at Triumph - Val Page - had designed one a few years previously, but Triumph's newcomer established a formula that all of Britain's major motorcycle manufacturers would adopt in the succeeding decade.

The example offered here dates from 1958 (the last full year of 'pre-unit' Speed Twin production), by which time the model had been upgraded with a stronger 8-stud cylinder barrel (replacing the original 6-stud); Triumph's own telescopic front fork; and a swinging-arm frame among many other improvements. This machine was despatched from the Meriden factory on 25th May 1958 bound for A W Harrison & Sons Ltd of Loudwater, High Wycombe. The current vendor purchased the Triumph in June 2015. Documentation and photographs on file would appear to indicate that this machine has been restored twice: in 1997 and again in 2012. The history file is substantial. Last run in 2015, the machine is described by the private vendor as in good condition throughout; nevertheless, recommissioning will be required following its lengthy period without use. Offered with dating certificate and a current V5C document. Key present.

Footnotes

All lots are sold 'as is/where is' and Bidders must satisfy themselves as to the provenance, condition, age, completeness and originality prior to bidding.

Saleroom notices

The full engine number is: 5T 17721

Additional information

Own a similar item?

Submit your item online for a free auction estimate.

How to sell

Looking for a similar item?

Our Motorcycles specialists can help you find a similar item at an auction or via a private sale.

Find your local specialist

Specialist section

Auction Viewings

  • 22 April 2023, 09:00 - 17:00 BST
  • 23 April 2023, 09:00 - 17:00 BST

Bid now on these items

1926 Triumph 494cc
United Kingdom
Coming soon

1926 Triumph 494cc

£4,000 - £6,000
1934 Austin Seven 65
United Kingdom
Coming soon

1934 Austin Seven 65

£4,000 - £6,000
1915 Douglas 350cc 2¾hp
United Kingdom
Coming soon

1915 Douglas 350cc 2¾hp

£4,000 - £5,000
1952 Vincent 499cc Series-C Comet
United Kingdom
Coming soon

1952 Vincent 499cc Series-C Comet

£5,000 - £7,000
1921 Triumph 550cc Model H
United Kingdom
Coming soon

1921 Triumph 550cc Model H

£4,000 - £5,000
The Ex-John Goodall, 3rd Place, 2003 Manx Grand Prix, Senior, Matchless 500cc G50 Racing Motorcycle
United Kingdom
Coming soon

The Ex-John Goodall, 3rd Place, 2003 Manx Grand Prix, Senior, Matchless 500cc G50 Racing Motorcycle

£5,000 - £7,000
1974 Moto Guzzi 750S
United Kingdom
Coming soon

1974 Moto Guzzi 750S

£4,000 - £6,000
The Ex-John Goodall, 4th Place, 2007 Manx Grand Prix, Junior, AJS 350cc Racing Motorcycle
United Kingdom
Coming soon

The Ex-John Goodall, 4th Place, 2007 Manx Grand Prix, Junior, AJS 350cc Racing Motorcycle

£5,000 - £7,000
A Michaux & Cie Velocipede, circa 1870,
United Kingdom

A Michaux & Cie Velocipede, circa 1870,

£4,000 - £6,000
A 56 inch Ordinary bicycle by Thomas Smith, circa 1885,
United Kingdom

A 56 inch Ordinary bicycle by Thomas Smith, circa 1885,

£3,500 - £4,500