
LOT 115
c.1949/1953 BSA 350cc B32 Competition Model Registration no. not registered Frame no. ZB31S 2856 Engine no. BB32.1048. (see text)
Sold for £2,530 inc. premium
Lot 115
c.1949/1953 BSA 350cc B32 Competition Model
The Autumn Stafford Sale - The Classic Motorcycle Mechanics Show|12 October 2024, 14:00 BST|Stafford, Staffordshire County Showground
c.1949/1953 BSA 350cc B32 Competition Model
Registration no. not registered
Frame no. ZB31S 2856
Engine no. BB32.1048. (see text)
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.
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.
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.
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This Lot will be auctioned on Saturday 12 October starting at 2pm GMT.





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- 12 October 2024, 09:00 - 17:00 BST
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