1957 AJS 7R Boy Racer
There was a time in European racing when Manufactures handed their motorcycles off to racers, and they went to join the Circus. The traveling show that when to Monza, Imola, Nurburgring, and the Isle of Man. These men would race motorcycles with displacements as small as 125cc, the Junior motorcycles of 350cc, and the Senior 500cc bikes. This 1957 AJS 7R was called the Boy Racer because of is 350cc displacement, but don’t think that this boy couldn’t scream.
From the seller
The bike was originally delivered in England and was exported to Australia in the 1970’s according to the records its engine number is 1557 ,which is a late 1957 build ),I bought the bike in Brisbane from a guy in 1986 it was completely un-restored he had bought it from the guy who originally imported it from the UK, it reputedly came from a Midland motor museum and was ridden by Bob McIntyre but i have no documented history of the although the engine was well prepared and had “works type” crankshaft with carbon steel balance weights etc ,after purchase I proceeded to restore it to race in historic events, after we retired the machine I stripped it completely and fully restored the machine to the condition it is in today the price reflects the condition and attention to detail and is competitive when you consider that a similar machine sold for 46k sterling in the recent past.
AJS had been racing and winning with overhead cam engines since before WWII. When racing started back up after the war, designer Phil Walker designed the new 7R and factory riders got exclusive use of the new bike from 1948 until 1954. With improvements almost every year to valve angles, and for a short time the number of valves (7R3), crankshaft length and design, and bore and stroke, the AJS may not have dominated, but they did compete.
After 1954 AJS opened up their race doors to privateers, and the Boy Racer found its way into the hands of enthusiast. AMC was the parent company of AJS in 1954, and saw that factor money spend on racing was not profitable. But this did not stop riders from taking the prize with the AJS 7R. Wins in 1961, 1962 and 1963 at the Junior Manx TT showed that the 7R, factory backed or not was a track weapon. By the final year of production in 1963 reported power output was 40bhp.
The seller of this 1957 AJS 7R gives a break down of each major system that makes up this bike and how it has been restored, revived, and invigorated. This 7R shows you not only how well bikes were build, but also the continuing support of individuals for these vintage motorcycles, and getting them on the track and competing. BB