Publisher's Synopsis
An account of the development history of Triumph's 500cc twin. Commencing with the introduction of the sporting Tiger 100 model in 1939 it continues right through until production ceased in 1974. The first part of the book relates to the original separate engine and gearbox designs and the second part covers the redesigned unit construction models that took on a new name, that of the American road racing event in which they scored some notable successes.;This book includes drawings from the archives of the Old Triumph Engineering Company and specifications of each model and the many changes in colour schemes.
