This volume compiles essential information for owners and enthusiasts of BSA A50 and A65 twin-cylinder motorcycles manufactured between 1962 and 1973. It draws from a variety of popular motorcycle magazines to provide a comprehensive overview of these iconic British bikes, covering their development, performance, and maintenance.

This compilation is regarded as a valuable resource for owners and restorers of BSA A50 and A65 twin motorcycles. The inclusion of original road test reports and technical articles from period magazines offers authentic insights into the performance and characteristics of these machines. The scope of models covered and the depth of technical information provided make it a comprehensive reference for enthusiasts seeking to understand, maintain, or restore their vintage BSA twins.