Hey, new to the whole bike thing so don't know much about them and Google hasn't been much help.

First off, when searching the ex650 I always see the 650r. Are they the same bike or use the same parts?

Also I'm looking to get an aftermarket exhaust on mine. Can you use slip on mufflers with the bike, or do you have to switch out the pipes too for aftermarket exhausts to fit?

 

Yes ex650 is the Ninja and you will have to buy a complete system unfortunately, it's one piece

 

So I need some help. I have a ex650 and I just got a 56t rear sprocket I'm curious as to what size chain I need. I know stock is 15t 46t and it' a 520x114. Tia