Those bikes with the "ZX" designation, such as the ZX-6R, fall into the Supersport category. These are even more performance-oriented than the regular Ninjas. They have specially tuned engines ...

On the other hand, CBR650R is powered by 649cc, liquid-cooled, inline-four engine that has been updated ... between Kawasaki Z900 vs Kawasaki Ninja ZX-6R? As per the users experiences Kawasaki ...