Description
This motorcycle is Lot 115 to be auctioned by Bonhams at The Autumn Stafford Sale (The Classic Motorcycle Mechanics Show) on 12 & 13 October, please see the Bonhams website for full details.
Auction Timings:
Lots 1 - 176 are to be sold from 11:00 on Saturday 12th October 2024.
Lots 201 - 429 are to be sold from 11:00 on Sunday 13th October 2024.
Public Viewing:
Available 12th & 13th October 2024 from 09:00 until 17:00, at The Stafford County Showground (The Classic Motorcycle Mechanics Show).
Lot 115
c. 1949/ 1953 BSA 350cc B32 Competition Model
Registration no. not registered
Frame no. ZB31S 2856
Engine no. BB32. 1048. (see text)
BSA's rugged, workaday B31 was manufactured from 1945 to the end of 1959, its overhead-valve engine providing the basis for the renowned Gold Star sports roadster. At the time of its introduction, the B31 was BSA's sole all-new model, joining the lightweight 'C' and heavyweight 'M' ranges carried over from pre-war days, and was produced initially with rigid frame and telescopic front fork. In January 1946 it was joined by a Competition variant, the B32, which boasted a high-level exhaust system, 21" front wheel, additional chromium plating, a crankcase shield and lowered gearing. An alloy cylinder barrel and head, broadly similar to those used on the contemporary Gold Star but retaining a separate pushrod tunnel, became available as B32 options from 1949 onwards, as did plunger rear suspension in common with the rest of the 'B' singles range.
This motorcycle appears to consist of a 1953 B32 engine in a 1949 frame which one would expect to have plunger rear suspension (as denoted by the 'S' in the frame number). Notable features include a Lucas competition magneto. Amal GP carburettor, vented front brake, and various scrutineering stickers. Used on the Thunder Sprint event circa 2007, the machine is offered for recommissioning and is sold strictly as viewed (the engine turns). It should be noted, the '2' to the engine number prefix appears to be over-stamped but may be a factory error.
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. Visit the Bonhams Motorcycles website for all pertinent auction information.
