Triumph Twenty-One to Daytona - The C Class 350cc & 500cc Twins
The Triumph 350cc and 500cc unit-construction twins were called the 'C' Series, and were made between 1957 and 1974. The range started with the 350cc 'Twenty-one' - a sedate touring bike with full enclosure in the form of the famous Triumph 'Bathtub' - went through such famous names as the Speed Twin, Tiger 100 and Trophy, and ended with the rip-roaring Daytona and the off-road Adventurer.
This book looks at the introduction and development of the range, and covers the various models produced. It gives a detailed technical analysis of the bikes, and charts the development of the basic design into the Daytona-winning roadburners of the late 1960s. It also looks at running the bikes, both in the past and today, including interviews with past and present owners. Tips about sensible modifications that can be made to enhance the riding experience for modern road conditions are described, and finally the author gives a blow-by-blow account of the restoration of a 1969 Trophy T100C.