In October 1930, went into production AJS 7 R motorcycle, with its speed to 160 km/h, was used Denli and Beyksrom in order to break the record in the class of 350cc to race in Montleri. A new design by Phil Walker, the chain-driven overhead camshaft 7R had the history of the pre-war AJS singles behind it. Initially, the AJS R7 was not as powerful as its competitors, producing 32hp(24 kW) @ 7500 rpm. The duplex frame and Teledraulic front forks remained relatively unchanged during production, while the engine had a number of changes. The included valve angle was progressively narrowed, and the crankshaft strengthened. In 1956 the engine dimensions changed from the original long-stroke 74 x 90 mm to the squarer 75.5x78mm. The AMC gearbox replaced the older Burman in 1958.
One of the most successful racing motorcycles from the AJS stable. Capable of speeds of 180-190 km/h (115-120 mph), 7R won the 1961, 62 and 63 Junior Manx TT races and came second in 1966. More specs and user manual of AJS 7 R you can see in nextoverview.
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