G2 1958-66, 248cc ohv single, 330lb, 66mpg, 70mph

At a time when most other manufacturers were going to unit-construction, AJS produced this single, which retained a separate gearbox. Employing butterfly valve springs & an oil tank in the engine case casting it was a brave attempt, which never succeeded. Heavy for a lightweight the handling improved with the AMC front forks on later models. The 14CSR was the sports model with improved styling & suspension.

G3 1945-66, 348cc ohv single, 400lb, 80mpg, 75mph

A good British single, which was not particularly spectacular for it’s time. The rigid versions had bad handling characteristics.

G5 1960-62 348cc ohv single, 350lb, 70mpg, 80mph

This is the bigger version of the Model 14 & G2, which has increased performance.