This book investigates the engineering, design, and historical impact of BMW's 500cc and 600cc twin-cylinder motorcycles produced between 1955 and 1969. It details the evolution of these iconic models, examining their technical specifications and their place in the post-war motorcycle market. The author draws upon extensive historical records and technical documentation to present a comprehensive overview of this significant era for BMW.

This work is recognized as a detailed technical reference for enthusiasts and historians of BMW motorcycles. Its focus on specific engine configurations and production years makes it a valuable resource for those seeking in-depth knowledge of this particular era. The book is likely to appeal to collectors, restorers, and anyone interested in the engineering heritage of BMW's twin-cylinder machines.