On my ninja 1000, I added a set of new take off rotors from the 2016 zx10. They are 330mm Brembo, and the stock ninja 1000 used 300mm discs.
You would assume an extra 30mm of disc to be awesome. Mind boggling even. They are very nice, but the diameter added very little to the overall package. Honest, its way closer to nothing.
Dont get me wrong, they are awesoem rotors. Smooth, quiet and powerful. However, the added diameter is just no big deal. Honest, if its a big initial hit you are looking for, a set of 310mm galfer waves offer more of that.