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Lot 110: Matchless 498cc G9 Project

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

Announced in 1948, the Matchless G9 and equivalent AJS Model 20, while following the established pattern of British parallel twins, were unusual in having a third, central, crankshaft main bearing. The new 498cc engine was housed in the sprung frame recently introduced on the heavyweight singles. Progressively developed, the motor underwent a number of capacity increases, finally arriving at 646cc in 1958 with the launch of the AJS Model 31 and Matchless G12. Well-finished, stylish and deservedly popular, the AMC twins were much missed after their demise in 1966. This Matchless G9 was acquired by its late owner some 45 years ago from a friend, who recalls changing the engine prior to sale. The machine appears to be made up of parts from different years, the later AMC-type gearbox being an obvious example. There are no documents with this Lot, which is offered for restoration and sold strictly as viewed. No reserve.

Lot Details
Auction Important Collectors' Motorcars & Motorcycles
Bonhams, Oxford, UK
TypeMotorcycle
Lot Number110
Estimate£200-£400
Outcome SOLD
Hammer Price£650
Hammer Price (inc premium)£747
Year1955
Condition rating
Registration number
Mileage-
Chassis numberA34392
Engine number
Engine capacity (cc)498
Engine - cylinders
Number of doors