Pre-war 1936 to 1939 (factory racing) Post-war 1948 to 1954 (factory racing), 1954 up to 1963 (public availability)
Engine
348cc single SOHC four stroke
Power
37 bhp (28 kW) at 7500 rpm.
Weight
285 pounds (129 kg) (dry)
The AJS 7R was a British 350 cc racing motorcycle built from 1948 to 1963 by Associated Motor Cycles.
It was also commonly known as the ‘Boy Racer’, and won victories both for the factory and for privateers right from its introduction in 1948.
The AJS7R was a British 350 cc racing motorcycle built from 1948 to 1963 by Associated Motor Cycles. It was also commonly known as the ‘Boy Racer’, and...
of the 1940s and start of the 1950s, the AJS Porcupine, a 500 cc forward-facing parallel twin, and the AJS7R (32 bhp, 350 cc OHC single) were being raced...
fielding the AJS Porcupine (500 cc forward-facing parallel twin), the AJS7R (32 bhp, 350 cc OHC single), the Matchless G50 (a 500 cc variant of the 7R) and by...
otherwise relevant in this period. Acme motorcycle (1939–49) AJS 18 AJS7RAJS Model 16 AJS Model 20 AJS Porcupine Ariel Red Hunter Ariel W/NG 350 BMW R24 BMW...
Matchless works in Plumstead, London. Developed in 1958 from the 350 cc AJS7R, but with the engine capacity increased to 500 cc, 180 G50s were built in...
leaks and vibration. The factory diverted Chief Engineer Jack Williams from AJS7R development to address the problems and modify the bikes for racing, with...
31 August 2005 27th Milestone 2005 Manx Grand Prix Junior Classic 350cc 7RAJS 219 England Tim Johnson 31 August 2005 Stonebreakers Hut 2005 Manx Grand...
respectively. On the racing front AMC were fielding the (supercharged) AJS Porcupine and the AJS7R alongside the 1951 Matchless G45 500 cc vertical twin. Even when...
his half-share in a garage to fund his full-time racing using a 350 cc AJS7R and a 500 cc Matchless G50 for the 'classic' races. His big break came when...
Prix in championship. In racing he rode a variety of machines including AJS7R, Mondial and NSU. Miller has won three 250cc North West 200 events (1956-1958)...
single-cylinder racing bikes (such as the Manx Norton, the BSA Gold Star and the AJS7R) that were prominent in the TT until the later 1960s. The GB500 was a fine-handling...
Matchless. In the mid-1960s, Rickman also produced road-racing frames for AJS7R singles, and in the 1970s they began selling chassis kits for Japanese bikes...
The AJS V4 (1935 – 1939) started out as a prototype air-cooled V4 road bike, but became a water-cooled and supercharged racing bike. In 1935, at the Olympia...
compression ratio. The factory diverted Chief Engineer Jack Williams from AJS7R development to address the problems with leaks and vibration and modify...
race machines – the 500 cc Manx Norton and Matchless G50 or the 350 cc AJS7R. Monty, in conjunction with his business partner Allen Dudley-Ward, a renowned...
and Dale was 25th. For the time being, MV Agusta still had to bow to the AJS7R and the Norton Manx. 1955 In 1955 the 350 cc MV Agustas did not start in...
Manx race without success. In the 1948 Skerries 100 he rode a Tom Arter AJS7R to success, boosting his confidence enough to purchase a Triumph GP, with...
engine tooling and spares for their racing AJS, Matchless and Norton motorcycle brands. The availability of AJS7R and Matchless G50 engines was ensured,...
paint. As well as the Burman BAR gearbox, Vincent also experimented with AJS7R gearboxes but used Albion gearboxes for most of the machines produced. The...
Arthur Dobson ERA E-Type 1939 Albi Grand Prix 350cc 3.38.000 Bill Doran AJS7R 1951 French motorcycle Grand Prix 250cc 3.40.800 Bruno Ruffo Moto Guzzi...
Chris McGahan 350 cc Honda 100.238 mph 1:30.20.24 4 John Goodall 349 cc AJS7R 98.191 mph 1:32.13.21 5 Steve Elliot 349 cc Honda 97.573 mph 1:32.48.24...
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