This manual provides comprehensive technical data for AJS and AMC motorcycles, covering a range of models manufactured primarily from the 1930s through the 1960s. AJS, founded in 1909, and the Associated Motorcycles (AMC) conglomerate, which included brands like Matchless, were renowned for their sporting success and robust British engineering. This technical data compendium is an essential reference for enthusiasts and restorers, consolidating vital information for a variety of iconic British motorcycles, including single-cylinder and parallel-twin engine configurations.

The scope of this manual encompasses detailed technical specifications for engine systems, transmission, chassis, suspension, braking, and electrical components. It includes information on engine types, gear ratios, frame details, carburetor models and jetting, and historical model variations. The purpose of this document is to serve as a definitive resource for verifying specifications, understanding model evolution, and supporting the maintenance and restoration of these classic machines, offering a single source of truth for hard-to-find data.