
LOT 120
1954 BSA 348cc B31 Registration no. KAS 827 Frame no. CB.31.1570 Engine no. BB31.8499 (See text)
Sold for £2,530 inc. premium
Lot 120
1954 BSA 348cc B31
The Autumn Stafford Sale - The Classic Motorcycle Mechanics Show|12 October 2024, 14:00 BST|Stafford, Staffordshire County Showground
1954 BSA 348cc B31
Registration no. KAS 827
Frame no. CB.31.1570
Engine no. BB31.8499 (See text)
Registration no. KAS 827
Frame no. CB.31.1570
Engine no. BB31.8499 (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. Produced initially with rigid frame and telescopic front fork, the B31 gained (optional) plunger rear suspension in 1949 and an all-new swinging-arm frame in '54.
This B31 appears to be an older restoration, displaying 40,915 miles to the odometer and was last taxed until July 2004. It was acquired in July 2003 from a previous owner in Ilkeston, who had purchased the bike in 1991. The machine comes with a printout dated 20-05-2003 titled 'work done since acquisition,' which details various maintenance tasks carried out by the previous owner. The list also includes pending tasks such as shortening the brake cable, addressing a rattle, adding oil to the primary chain case, and fitting the correct handlebars. It is unclear whether these tasks were completed. As a result, the machine will require recommissioning to a greater or lesser extent and is sold strictly as viewed. The engine turns over. Offered with a V5C, an old V5, a selection of MoT certificates (the last of which expired in August 2004), and the aforementioned maintenance list. It should be noted, the machine was previously registered as 'FCH 360' and that the V5C records a different engine number (CB3110992), indicating an engine change.
This B31 appears to be an older restoration, displaying 40,915 miles to the odometer and was last taxed until July 2004. It was acquired in July 2003 from a previous owner in Ilkeston, who had purchased the bike in 1991. The machine comes with a printout dated 20-05-2003 titled 'work done since acquisition,' which details various maintenance tasks carried out by the previous owner. The list also includes pending tasks such as shortening the brake cable, addressing a rattle, adding oil to the primary chain case, and fitting the correct handlebars. It is unclear whether these tasks were completed. As a result, the machine will require recommissioning to a greater or lesser extent and is sold strictly as viewed. The engine turns over. Offered with a V5C, an old V5, a selection of MoT certificates (the last of which expired in August 2004), and the aforementioned maintenance list. It should be noted, the machine was previously registered as 'FCH 360' and that the V5C records a different engine number (CB3110992), indicating an engine change.
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.
Saleroom notices
The odometer reads 43,915 miles.





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