Book excerpt: A hybrid machine--powered at times by steam, electricity or internal combustion--the motorcycle in its infancy was an innovation to help bicycle racers go faster. As motor age technology advanced, the quest for greater speed at the velodrome peaked, with riders reaching speeds up to 100 kph on bikes and trikes without brakes, suspensions or gear boxes. This book chronicles the individuals and events at the turn of the 20th century that led to the development of motor-powered two-wheelers.