<P><B>Cycling Book of the Year 2015 - Cross British Sports Book Award</B></P><P>Unbeknownst to the authorities, however, he had fallen in love with Sylvia Hermann, a girl from the other side of the wall. Socialist doctrine had it that the two of them were ''class enemies'', and as a famous athlete Dieter''s every move was pored over by the Stasi. Only he abhorred their ideology, and in Sylvia saw his only chance of freedom. Now, playing a deadly game of cat and mouse, he plotted his escape.</P><P>In 1964 he was delegated, once and once only, to West Germany. Here he was to ride a qualification race for the Tokyo Olympics, but instead committed the most treacherous of all the crimes against socialism. Dieter Wiedemann, sporting icon and Soviet pawn, defected to the other side.</P><P>Whilst Wiedemann fulfilled his lifetime ambition of racing in the Tour de France, his defection caused a huge scandal. The Stasi sought to ''repatriate'' him, with horrific consequences both for him and the