Claudio Porrozzi, Fabrizio Porrozzi
Already the winner in 2010, Max Biaggi confirmed he was still at the top of the Superbike World Championship by winning the 2012 title in the saddle of an Aprilia. But after taking his second world title, he announced his retirement from competition. So the 2013 Superbike World Championship opens without a reigning champion, but it is still packed with excitement. The Superbike World Championship...
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