Terry Joslin

The AJS Model 39/12 reflects a move toward shared engineering and streamlined design, with AJS and Matchless models becoming closely aligned in both structure and identification.

Powered by a 246 cc overhead valve single, its long-stroke layout (62.5 x 80 mm) delivers steady, usable torque, paired with a four-speed gearbox for practical performance. Details such as the steering damper and Smiths speedometer add control and precision, while the exposed mechanical layout keeps the focus on function and simplicity.