What is the fine-grained topic of the following text: The last of the factory MotoGP teams to unveil its 2013 livery (Ducati Corse, Pramac Ducati & Repsol Honda here), Yamaha Racing has finally officially debuted the 2013 Yamaha YZR-M1 race bike, along with the team livery for riders Valentino Rossi and Jorge Lorenzo. Only return the topic.
2013 Yamaha YZR-M1 race bike unveiling