LOT 215
Property of a deceased's estate c.1947 BSA 499cc B31/M33 'AA' Replica Motorcycle Combination Registration no. SMP 635 Frame no. XB31 13038 Engine no. YM33 655
Sold for £3,680 inc. premium
Lot 215
Property of a deceased's estate,c.1947 BSA 499cc B31/M33 'AA' Replica Motorcycle CombinationRegistration no. SMP 635 Frame no. XB31 13038 Engine no. YM33 655
The December Sale Collector's Motor Cars, Motorcycles and Automobilia|7 December 2016, 14:00 GMT|London, Olympia
Property of a deceased's estate
c.1947 BSA 499cc B31/M33 'AA' Replica Motorcycle Combination
Registration no. SMP 635
Frame no. XB31 13038
Engine no. YM33 655
c.1947 BSA 499cc B31/M33 'AA' Replica Motorcycle Combination
Registration no. SMP 635
Frame no. XB31 13038
Engine no. YM33 655
Finished in Automobile Association livery, this BSA motorcycle combination is a hybrid comprising a B31 frame dating from circa 1947 and an M33 engine built in 1948. Based on the pre-war B29, BSA's rugged and reliable B31 was manufactured from 1945 to 1959, latterly with telescopic fork and swinging-arm rear suspension. First introduced for 1948, the BSA M33 combined the B33's overhead-valve engine and the cycle parts of the M20 sidevalve. The B33 engine closely followed B31 lines, but with larger (85mm) bore and heavier flywheels. The M33 was intended to provide more power for sidecar use, which it did with ease. A good, solid, all-round performer by the standards of its day, the M33 could top 60mph with sidecar attached, cruise comfortably all day at 50-plus, and return in excess of 50mpg. One of the organisations that continued to favour the faithful old M21 sidevalve was the Automobile Association, whose distinctive yellow-liveried combinations, ridden by patrolmen wearing military-style khaki uniforms, were a regular sight on British roads well into the 1960s. They never used the M33, though doubtless their patrolmen would have welcomed its superior performance.
Well presented and with age related marks, 'SMP 635' displays a total of 22,774 miles on the odometer. The engine turns over and has compression, while the timing cover, rocker cover, and leg shields are currently detached. Offered with an old-style continuation logbook (1961), an old-style V5, an instruction manual and sold strictly as viewed.
Well presented and with age related marks, 'SMP 635' displays a total of 22,774 miles on the odometer. The engine turns over and has compression, while the timing cover, rocker cover, and leg shields are currently detached. Offered with an old-style continuation logbook (1961), an old-style V5, an instruction manual and sold strictly as viewed.
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