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LOT 208

The David Plant Collection 1928 Sunbeam 493cc Model 9 Registration no. not registered Frame no. D3305 Engine no. 7 (see text)

Sold for £6,900 inc. premiumLot to be sold without reserve
Lot 208

The David Plant Collection, 1928 Sunbeam 493cc Model 9

The David Plant Collection
1928 Sunbeam 493cc Model 9
Registration no. not registered
Frame no. D3305
Engine no. 7 (see text)

Sunbeam had begun experimenting with overhead valves on their factory racers in the early 1920s and these duly appeared on production models in 1924. The new '500' sports roadster was known as the Model 9 (the '350'as the Model 8) while its race bike counterpart, which could top 90mph, was accordingly designated the Model 90. Sunbeam missed the industry's virtually wholesale switch from flat-tank to saddle-tank frames for the 1928 season, and a saddle-tank version of the Model 9 did not appear until September of that year. Changes to the Model 9's engine were confined mainly to its top-end.

There are no documents with this Lot. It should be noted that only the final digit (7) of the engine number remains visible. Following a period of inactivity, this motorcycle will require recommissioning and/or restoration to a greater or lesser extent before returning to the road and thus is sold strictly as viewed. Prospective purchasers should satisfy themselves with regard to this motorcycle's completeness, history, authenticity, originality and mechanical condition prior to bidding.
Key not required

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.

Please see the Auction Information and Guide for Buyers at the top of the main sale page, for bidders' obligations. The Spring Stafford Sale

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This Lot will be auctioned on Sunday 26 April, with the auction starting at 11:30am BST.

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  • 25 April 2026, 09:00 - 17:00 BST
  • 26 April 2026, 09:00 - 17:00 BST

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