The Engine BSA C15, B40, B25, B44, B50, Triumph TR25W.
The restorers guide - a complete description of every variation of every BSA Unit Single (C15, B40, B25, B44, B50 and TR25w) including all the myriad detailed factory modifications, the reasons for the changes, modern equivalents (especially paints) and modifications to improve roadworthiness - if it is a Unit Single then the answers are here! The companion volume to the very well known Rupert Ratio Unit Single Manual Volume 1 The Engine, Volume 2 covers in considerable detail every component (except the engine) during the long production history of the BSA Unit Single and includes variations for the US and other markets. The book covers all the frames, tanks, wheels, tinware, stands, brakes, suspension, seats, exhausts, electrics, paint colours and finishes, electrics, controls, instrumentation and tools. An essential book for restorers of BSA Unit Singles and also the Triumph variation of the Unit Single the TR25w, and also for those who are seeking to improve their machines through the use of modern parts and techniques. Amazingly detailed and well illustrated with a colour section for the transfers (decals), this book is a real boon to owners of BSA Unit Singles.