c.1950 BSA 499cc B33 Frame no. ZB31 12954 Engine no. ZB33 12887

c.1950 BSA 499cc B33 Registration no. OSU 203 Frame no. ZB31 12954 Engine no. ZB33 12887 A development of the 350cc B31, the 500cc B33 was manufactured from 1947 to 1960. BSA's rugged, workaday B31 was a new introduction for 1945, 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 forks, the B31 was available from 1949 with optional plunger rear suspension and switched to a swinging-arm frame, along with the rest of the range, in 1954. The B33 engine closely followed B31 lines but with larger (85mm) bore and heavier flywheels, while cycle parts were identical apart from a larger-section rear tyre. A good, solid, all-round performer by the standards of its day, the B33 could top 80mph, cruise comfortably all day at 70mph and return in excess of 70mpg. Unfortunately, apart from the previous keeper's identity, nothing is known of the history of this B33 prior to its acquisition by the vendor in July 2010, since when it has been dry stored as part of his extensive private collection. Recommissioning will be required before the machine returns to the road and thus it is sold strictly as viewed (the engine turns over). Offered with a V5C document. 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. REQUEST A TRANSPORT QUOTE Please click the link to request a transport quote from our recommended transport company, Moving Motorcycles. To request a UK or European shipping quote - Moving Motorcycles To request an International shipping quote - Shippio Lot to be sold without reserve. For further information on this lot please visit Bonhams.com For further information about this lot please visit the lot listing