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Lot 358: 1929 Sunbeam 347cc Model 5

Collectors' Motorcycles, Bonhams (16 October 2005)

Already established as makers of high-quality bicycles, the firm of John Marston Ltd, of Wolverhampton, introduced the first Sunbeam motorcycle, a 350cc sidevalve single, in 1912. The marque quickly established a reputation for sporting prowess, achieving second place in the 1914 Isle of Man Senior T.T. and winning the 1920 race. Overhead-valve engines were introduced in the mid-1920s, but early successes were achieved with sidevalve-engined machines. This Model 5 sidevalve dates from 1929, the first year of the ‘saddle tank’ Sunbeams, and was previously attached to the Watsonian launch-type sports sidecar (Lot ???). Offered for restoration, the machine comes with old-style continuation logbook and Department of Transport letter linking the registration mark ‘PG 1129’ to the machine.

Lot Details
Auction Collectors' Motorcycles
Bonhams, Classic & Motorcycle Mechanics Show, Stafford
TypeMotorcycle
Lot Number358
Estimate£1600-£2000
Outcome SOLD
Hammer Price£2400
Hammer Price (inc premium)£2760
Year1929
Condition rating
Registration number
Mileage-
Chassis number
Engine numberJ3322
Engine capacity (cc)
Engine - cylinders
Number of doors