When it comes to performance, no class is more competitive than middleweight sport bikes. To be prominent, a sport bike needs to do the best in everything — it needs to kick serious tail in every department. Salute to the Kawasaki Ninja ZX-6R then, winner of 600 cc comparison tests in just about every publication and website of note on the planet. With an engine the critics agree feels bigger than 599 cc, and a chassis that out handles all others, Kawasaki Ninja ZX-6R returns as the sport bike to beat in 2010.

2010 Kawasaki Ninja ZX-6R

2010 Kawasaki Ninja ZX-6R

2010 Kawasaki Ninja ZX-6R

2010 Kawasaki Ninja ZX-6R

2010 Kawasaki Ninja ZX-6R

Designed to offer a high-level base package with the stock engine and chassis performance to satisfy even professional racers, the already potent Kawasaki Ninja ZX-10R receives some fine-tuning and a revised styling package for 2010.

2010 Kawasaki Ninja ZX-10R

2010 Kawasaki Ninja ZX-10R

2010 Kawasaki Ninja ZX-10R

2010 Kawasaki Ninja ZX-10R

2010 Kawasaki Ninja ZX-10R