LOT 335

1928 Humber 349cc Sports Registration no. UX 2053 Frame no. M10715 Engine no. 10712

Sold for £4,025 inc. premium

Lot 335

1928 Humber 349cc Sports

The Autumn Stafford Sale - The Classic Motorcycle Mechanics Show|12 October 2025, 11:00 BST|Stafford, Staffordshire County Showground

1928 Humber 349cc Sports
Registration no. UX 2053
Frame no. M10715
Engine no. 10712

A firm with its roots in the Victorian bicycle industry, Humber began experimenting with powered transport in the closing years of the 19th Century, introducing its first successful motorcycle - a built-under-license P&M - in 1902 and the first all-Humber design in 1908. A 500cc sidevalve, this new 3½hp model carried its engine in the conventional position and featured belt drive to a two-speed rear hub. V-twin and flat-twin models followed, Humber's first post-WWI offering being a 4½hp version of the latter. This heavyweight machine - 'The Silent Humber' - was joined for 1923 by a 2¾hp lightweight sports model powered by a single-cylinder sidevalve engine of 75x79mm bore/stroke displacing 349cc. Refined and speedy, the newcomer proved good enough to secure Humber the Team Prize in the 1923 A-CU Six Days Trial and would provide the basis of its future motorcycle range, spawning overhead-valve and, later, overhead-camshaft derivatives. Produced in touring and sports versions, the 2¾hp sidevalve Humber remained in the range until motorcycle production ceased at the end of 1930.

This sidevalve Humber was lightly recommissioned by the vendor before successfully completing this year's Banbury Run. Run regularly since then, the machine is offered with a current V5C document and a BM-S photocopied instruction manual.
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 Autumn Stafford Sale

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This Lot will be auctioned on Sunday 12 October, with the auction starting at 11am GMT.

Additional information

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