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Lot 155: BSA 347cc B31

Important Collectors' Motorcars & Motorcycles, Bonhams (16 June 2012)

It has been said that, until the advent of its (sl) Umberslade Hall days, BSA had never made a bad motor-cycle. Whether that is true or not, the range of post-WW2 machines was exceptional, with the A and B series of twins and singles being highly respected amongst buyers and with both having a strong following today. The most affordable was the B31 350 single, introduced in the 40's and inheriting the race-bred chassis of its iconic Gold-Star brothers in 1954. The B 31's punchy 'iron' engine had the bore and stroke of the 350 'Goldie' and looked exactly like it to most people as well as having plenty of reliable power and a feeling of durable solidity allied to splendid handling. SSU 522 was registered on 27-04-1956 by the South Yorks. Firm of Campion and Sons and was, apparently, thoroughly rebuilt by Unity Motors inc. in 1989, remaining in very good order indeed since then, with excellent paint and chrome. Running well and in use, though becoming heavy for the vendor, the machine is offered with current Tax Disc and MOT until September 2012, sundry bills, old tax and MOT documents, BSA OC dating certificate and a Haynes manual. As British a 'single' as they come, the BSA is described as 'ready to go' following the usual safety checks.

Lot Details
Auction Important Collectors' Motorcars & Motorcycles
Bonhams, Oxford, UK
TypeMotorcycle
Lot Number155
Estimate£2400-£3400
Outcome NOT SOLD
Hammer Price-
Hammer Price (inc premium)-
Year1956
Condition rating
Registration numberSU 522
Mileage-
Chassis numberEB 315323
Engine numberBB 3126179
Engine capacity (cc)347
Engine - cylinders
Number of doors