148 pages, 97 illustrations, size 5.5 x 8.5 inches. Originally published under the title The Book of the BSA (Groups B, C and M) by W. C. Haycraft this book is one of The Motorcyclist's Library series published in the USA by Floyd Clymer by arrangement with the original publishers Pitman Ltd. of London, England.

This re-print of the 15^th edition includes complete technical data, service and maintenance information and detailed instructions for the repair and overhaul of the major mechanical and electrical components for the BSA 250cc, 350cc, 500cc and 600cc B31, B32, B33, B34, C10, C11, C11 De Luxe, M20, M21 and M33 single cylinder OHV & SV series of motorcycles from 1945 through 1959 with the exception of the 1954-59 C10L, C11G, C12, C15 and Gold Star models. There is adequate detailed text and diagrams to assist in major refurbishing such as an engine rebuild or even a complete renovation.

A GUIDE TO THE VARIOUS 'BOOK OF THE BSA' EDITIONS FOR OWNERS OF POST WW2 SINGLES THROUGH 1970

The 10^th, 11^th and 12^th editions published after the end of WW2 were nothing more than a reprint of the 1936-1939 pre-war 9^th edition, each one having and additional 50 page 'supplement' covering the post-war models. Due to the superficial nature of these supplements, they were inadequate in providing overhaul and repair information for owners of the post-war models.

However, when the 13th edition was published, the entire publication focused on the post-war B, C and M models up to 1954 and the 1936-1939 pre-war section was eliminated. The 14^th edition expanded on the years covered, as did the 15^th edition which was the final edition to include the post-war C series models. Therefore, the VelocePress re-print of the 15^th edition (ISBN 9781588502292) is of the most use to owners of the 1945 through 1959 post-war B, C and M singles.

The 16^th and 17^th editions continued coverage of the later B and M models (only) and the last edition to cover the B and M series was the 17^th edition published in 1968. Therefore, the VelocePress re-print of the 17^th edition (ISBN 9781588501561) which covers the 1955 through 1967 models is of most use to owners of the later B and M series motorcycles.

Finally, the 1954 and later C models received their own specific 1^st edition beginning in 1963. This separate publication went through four different editions, each one expanding on the years covered. Obviously, the most appropriate edition for late model C series 250cc owners would be the VelocePress re-print (ISBN 9781588501585) of the 4^th and final edition which covers the 1954 through 1970 models.