Although he was a hero of East German sport, cyclist Dieter Wiedemann fell in love with Sylvia Hermann, a girl from the other side of the wall. In 1964, he was allowed to participate in a race in West Germany, and Wiedemann used the opportunity to defect. Here Herbie Sykes tells the tale of how Wiedemann lived out a love story and also fulfilled his lifetime ambition of racing in the Tour de France, but risked horrific consequences both for himself and the family he left behind.