Beschreibung:

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. A good all-round performer by the standards of its time, the B31 could cruise comfortably all day at 60mph while returning 75-plus miles per gallon, virtues that endeared it to private owners and police forces alike. This plunger-suspended B31 dates from 1952, a time when the worldwide nickel shortage resulting from the Korean War forced manufacturers to curtail the number of chromium-plated fittings; BSA kept the exhaust pipes, silencers and minor fittings plated, but tanks and wheel rims were painted. The machine had been off the road for some time when it was acquired by the current owner in the 1970s. Original and complete at time of acquisition, it was restored in 1996, the engine being rebuilt with a ‘new old stock’ standard-size cylinder barrel and piston. All the original fittings were retained and re-plated with the exception of the exhaust system, which was replaced. ‘MOK 964’ was used regularly but sparingly for the next seven years, and has covered only 500-or-so miles since completion. Presented in good condition throughout, the machine is offered with all MoTs for the period 1997-2003; old-style continuation logbook (issued 1962 and recording a change of frame in 1964); a quantity of 1960s tax discs; and Swansea V5C registration document.