An important period in motorcycling was that of ‘production derivatives’, the bikes that competed in short, nervous races or in the legendary 500 kilometres events. The list includes mechanics and industrialists, elite teams and simple workshops, British, Italian and Japanese motorcycles. The elegant Koelliker-Triumph team challenged the Moto Guzzis of the Brambilla brothers, the Laverdas of the Venetians and Tuscans. The Hondas took on each other, ridden by Bonera and Del Carro of Milan and Pelletier and Piccirilli of Rome and their respective preparers. Riders who also competed include Franco Uncini, Virginio Ferrari and Marco Lucchinelli, all at the start of their fabulous careers. This and more appears in a 160-pages book that also contains complete results tables of the races that took place from 1970 to 1979.