The Ninja ZX-10R is a Kawasaki sport bike, and the follow-up to the ZX-9R. It was originally released in 2004 with minor revisions in 2005. It combines an ultra-narrow chassis, low weight, and radial brakes. In 2004 and 2005 the ZX-10R won Best Superbike from Cycle World magazine and the prestigious international Masterbike competition.