Skip to main content

LOT 522

1954 Sunbeam 489cc S8 Registration no. JCO 950 Frame no. S8 7660 Engine no. S8 12547

Estimate: £4,000 - £6,000

1954 Sunbeam 489cc S8
Registration no. JCO 950
Frame no. S8 7660
Engine no. S8 12547

A wartime design by Erling Poppe, the Sunbeam inline twin was introduced by BSA, owners of Sunbeam Cycles Limited, in 1947. A luxury tourer inspired by the pre-war BMW, it was of advanced specification with overhead-camshaft engine, shaft drive and plunger rear suspension. The clutch housing and four-speed gearbox bolted directly to the back of the engine, which was rubber mounted in the duplex loop frame, an innovation that required a flexible joint in the exhaust system ahead of the silencer. The first S7 version was equipped with balloon tyres, a feature not carried over to the deliberately more conventional, and also lighter and cheaper, S8 introduced in 1949. The front fork and 7" brake were now standard BSA components and there were numerous other changes made in the interests of rationalisation. Never as popular as BSA's more performance orientated models, the gentlemanly S7 and S8 remained in production until 1957.

This S8 was purchased by the vendor in 2021. Later that same year various restoration works were carried out to include professionally relining and repainting the fuel tank; fitting new fuel lines and taps; and fitting new tyres/tubes (invoices of file). There are also receipts present accumulated during previous ownership. Run earlier this year, the machine is offered with a copy of The Book of the Sunbeam; Stewart Engineering parts list; and old/current V5/V5C documents. It should be noted that the frame and engine numbers are transposed on the V5C.

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

This lot is offered with a key.

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

  • 14 October 2023, 09:00 - 17:00 BST
  • 15 October 2023, 09:00 - 17:00 BST

Bid now on these items

1971 Kawasaki 500 Mach III
United Kingdom
Coming soon

1971 Kawasaki 500 Mach III

£3,000 - £5,000
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
1936 Austin 7 Ruby,
United Kingdom
Coming soon

1936 Austin 7 Ruby,

£3,200 - £4,000
Triumph 5T
United Kingdom
Coming soon

Triumph 5T

£3,000 - £4,000
Triumph Tiger 100
United Kingdom
Coming soon

Triumph Tiger 100

£3,000 - £4,000
1915 Douglas 350cc 2¾hp
United Kingdom
Coming soon

1915 Douglas 350cc 2¾hp

£4,000 - £5,000
Triumph 6T
United Kingdom
Coming soon

Triumph 6T

£3,000 - £4,000
1952 Vincent 499cc Series-C Comet
United Kingdom
Coming soon

1952 Vincent 499cc Series-C Comet

£5,000 - £7,000
Triumph 6T
United Kingdom
Coming soon

Triumph 6T

£3,000 - £4,000
1921 Triumph 550cc Model H
United Kingdom
Coming soon

1921 Triumph 550cc Model H

£4,000 - £5,000
1916 Radco 211cc
United Kingdom
Coming soon

1916 Radco 211cc

£3,400 - £4,400
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