The BSA range of unit construction singles was in production for fifteen years, and spanned the time of BSA's greatest success, to the eventual failure of the c

Takes the BSA (and Triumph) Unit Single engine apart, and then shows how to rebuild the engine. This book includes wiring diagrams, complete specifications, hun

All you need to know about buying a used BSA unit single, from the very first 250cc C15 to the final 500cc B50. Get the low-down on model histories, relative va

Full history of BSAs world famous Gold Star mode and many other wonderful models.