1956 AJS 7R

This lot has been removed from the website, please contact customer services for more information

Lot 156
1956 AJS 7R

Sold for US$ 57,500 inc. premium
1956 AJS 7R

Built from 1948 to 1963, Associated Motor Cycles' AJS 7R - known as the "Boy Racer" - was one of the most, if not the most, successful over-the-counter 350cc class racing motorcycles of all time, until the advent, that is, of the Yamaha-dominated 2-stroke era in the 1970s. Almost all of Britain's road-race stars of the 1950s and 1960s rode a 7R at some stage of their careers and the model remains a major force in classic racing today, being highly sought after by competitors and collectors alike. 25 years at the top is an impressive track record for any motorcycle.

Although a new design by Phil Walker, the 7R, with its chain-driven overhead-camshaft, was very reminiscent of the AJS "cammy" singles of pre-WWII days. Despite the fact that the 7R was not, initially, as powerful as its main rivals - the Velocette KTT and Junior Manx Norton – its robust and simple construction endeared the model to the privateer responsible for his own maintenance. While the duplex loop frame and Teledraulic front fork remained essentially unchanged throughout production, the engine underwent almost continuous revision: the valve angle being progressively narrowed, the crankshaft made stronger and, in 1956, engine dimensions changed from the original long-stroke 74x81mm bore/stroke to the "squarer" 75.5x78mm, permitting higher revs. AMC's own gearbox replaced the previous Burman in 1958, while engine development continued almost to the end of production, by which time the 7R was putting out around 41 horsepower.

Since the AMC factory records have sadly been lost, little is known of the history of the motorcycle on offer other than it is understood to be a 1956 model, with the older style frame used until early 1956, fitted with a 1956 engine. Around 50 machines were built that year in the AMC factory in Plumstead, East London. The machine has been with the present owner since 1985, and has not been run during that time, though it is understood to be in good working order. It will require re-commissioning before returning to the track.

Footnotes

  • Offered on a Bill of Sale.
Contacts
1956 AJS 7R
1956 AJS 7R
1956 AJS 7R
1956 AJS 7R
1956 AJS 7R
1956 AJS 7R
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