i purchased my 1st bike earlier this summer. A Ninja 500r. Great bike.
i would say after next summer im gonna want something bigger.
can someone/anyone tell me what are the main differences between the two?
Thanks

 

both reliable, both fast, primary difference will be comfort - you have to sit on each to decide which is more comfortable to you.

 

comfort is what sold me on my ZX6R. i'm 6'2'' 220lbs. and i didn't like how the honda felt.

 

^^^^^ I am with you same reason I bought my Kawi. Unless you plan on racing on the track you will never put either bike to its full potential. The 08 600rr is a little lighter.

 

I recommend to go by what your eyes like the most.. unless you doing serious racing .. I have 05 636... red.... one thing that sold me on it is the undertail exhaust....

 

I have ridden both and the 636/ ZX6R is more comfortable. I don't know what it is with Honda and their seats? The seem to use the hardest foam for their seats. I had an F4i, rode a VFR800 and the 07 CBR600RR and all their seats were hard. Also all the Honda's shifting were KLUNKY! The Kawasaki's have the smoothest shifting by far especially with good Synthetic Oil like Motul 300V. It's almost too smooth

 

i own a 04 636 and i have rode a couple of the 600rr and i like the feel of my kawi better. the 600rr feels a little lighter and narrower.