AJS 1921 Model D 799cc 2 cyl sv



AJS 1921  7 HP“Model D”   sidecar combination  799 cc  side valve  V-twin    frame & engine & gearbox # 15304

Already in the years before 1920 A.J. Stevens & Co. were major motorcycle manufacturers.
Their first V-twin had been introduced in 1912 and was a very successful model, especially for sidecar use. 
At the 1919 Olympia Show a new  6 HP model was introduced. 
Its features included a new type of saddle tank, interchangeable and quickly detachable wheels with internal expanding brakes, specially sprung comfortable saddle, footboards with rubber mats, rear stand operated by hand lever and big size aluminium exhaust damper, placed under the front of the engine.
For 1921  a number of improvements were announced:  the engine  performance was enhanced  to  7 HP (799 cc)  with  bore x stroke dimensions of  74×93 mm. 
The big ends were fitted with roller bearings instead of bronze bushes  and  better cooling was effected by additional and deeper radiating fins on cylinders  and heads. 
The machine we offer here  is a fresh restoration  and has always been fitted with  a sidecar:  the original sidecar  comes with the machine and has been partly restored already. 
The lubrication system has been improved by the fitting of an external oil pump. 
This mighty AJS comes complete with Lucas electric lighting system and electric horn.