First AJS model with a V-twin engine. First model with "AJS scientific frame". The top tube ran from headset to seatpost in a straight, sloping line without the use of bent tubes. This motorcycle had the in 1915 super modern 3-speed gearbox with kickstarter. Magneto is missing. This was a Bosch or at the hands of not delivering from Germany to the enemy this was an American Splitdorf. Frame, engine and gearbox are matching numbers!