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AJS (Great Britain).
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Updated: 2002-09-14
AJS is one of the famous Brittish marquees. The AJS story begun in 1911 when the brothers Albert John, George, Harry and Jack Stevens begun producin the very first bike by the name AJS at their father, Joe Stevens company. They had been producing engines prior to that. In 1915 they released the AJS Model D. From the beginning until World War II their models where. AJS Model D, AJS twin port overhead valve 500 , AJS R7 , AJS S3 , AJS Supercharged V4, AJS Stormer Y4, 250cc two stroke AJS Stormer Y5, 370cc two stroke AJS 410 Stormer, 400cc two stroke

The AJS 7R where released in 1948 and was a popular machine in early scrambling (motocross). During the mid 50's the Wolwerhampton based motorcycle industry released the AJS 16M and the AJS 18S (CS). The development halted and by 1967 the AJS factory closed and the rights to the AJS name where sold to the Norton Villers group.

The marquee was involved in real early scrambling (motocross). One of the most famous riders during the 40's was Hugh Viney (Great Britain) who participated in both motocross and Interrnational Six Days Trial (ISDT). During the 50's The AJS where represented by great names like: Geoff Ward and the swede, Bill Nilsson.
AJS Stormer Y4, 1968
The tecnical data on the Stormer 250cc is:
Bore and stroke: 68 x 68mm.
Compression: 11:1
Sprockets: 13/61, 520 chain
Carb: Amal Mk1 32mm
Gearbox oil: 570cc Gearbox oil
Fork oil: 210cc x 2 hydraulic fork oil 10w
AJS Stormer Y5, 1969
The tecnical data on the Stormer 370cc is:
Bore and stroke: 83 x 68mm.
Compression: 11:1
Sprockets: 12/65, 520 chain
Carb: Amal Mk1 34mm
Gearbox oil: 570cc Gearbox oil
Fork oil: 210cc x 2 hydraulic fork oil 10w
AJS 410 Stormer, 1972
The tecnical data on the Stormer 400cc is:
Bore and stroke: 83 x 74mm.
Compression: 11:1
Sprockets: 13/61, 520 chain
Carb: Amal Mk1 32mm
Gearbox oil: 570cc Gearbox oil
Fork oil: 210cc x 2 hydraulic fork oil 10w




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