Lot details
Registration No: N/A
Frame No: 1781
Engine No: No Number

With hindsight it seems surprising that the G50 did not come into being before 1958. Although clearly derived from the AJS 7R, AMC were committed to the development of the G45 twin and did not wish to divert their attention from that project. However by the second half of the decade it was becoming apparent that the G45 was not going to succeed and in 1958 a 500cc machine derived from the 7R was unveiled, largely as result of the 7R's proponent at boardroom level, Jock West. The new machine shared the 7R's 78mm bore with a stroke of 90mm giving a capacity of 496cc. The prototype engine underwent a period of intensive development throughout 1958 to prepare it for production commencing in 1959. When the new model was released the engine, although visually the same as the 7R had its own dedicated castings. A power output of 51bhp at 7200rpm was claimed for the new model. The cycle parts followed the same pattern as those used by the contemporary 7R with only the difference in colour and badge to distinguish between them, a fact that has led to numerous argument between enthusiasts ever since as to which is the most attractive, the 7R or G50! Production ended in 1962 after approximately 180 examples had been built. Today G50's continue to win on the track in classic events supported by an industry that continues to refine and develop the model.
The example offered dates from 1961 and formed part of the famous Guggenheim show, "The Art of the Motorcycle". The motorcycle is fitted with a Mick Hemmings five speed gearbox, although the four speed unit has been located and is available. It has been fitted with a set of replacement, period crankcases at some point in the past and is offered with a certificate from the Guggenheim Show confirming its participation in the event.