Valentino Rossi talks about his Yamaha YZR-M1 from 2004 to 2009 (part 1 of 2)

Valentino Rossi talks about each generation of Yamaha's YZR-M1 MotoGP machine from 2004, when Rossi crabbed the first MotoGP title in his first Yamaha year, through to last year's 2009 machine, with which he clinched his 4th MotoGP World Championship with Yamaha. The video consists of 2 parts. This is part 1