Kawasaki's middleweight street bikes under its 650 series of motorcycles are often criticized for their lackluster character. This is mainly because of their rather muted power delivery and exhaust note thanks to their 180-degree parallel-twin engines. Having owned a Kawasaki Ninja 650 for quite some time, I can certainly attest that, while the bike produces adequate power, I'm often left wanting a bit more in terms of character.
