Hey djebel250
The braking "wavy" rotor is THICKER than the stock rotor by a long shot, in fact it is almost twice as thick, you will need a bracket to relocate the stock caliper, "Talon" (company that makes the hubs0 makes a nice bracket that I used until my caliper came in (I bought the Braking 4 piston caliper) the only problem with this setup is that the rotor is so thick that you will have to grind away some of the brake pads to get it (caliper and pads) to go over the rotor, I used EBC pads and I had to grind that pads roughly .020 inch on each side to get them on. The braking caliper eliminates this problem and it gos on really easy. The other issue with running a bigger rotor and stock caliper is that the stock pads do NOT make perfect contact with the rotors full width, it may be hard to describe but basically the contact surface of the stock pad is say 1.5 inches wide and the rotor contact surface is 2 inches wide so its a bit of a pain, the braking quality using a stock caliper and 320 MM rotor is fantastic, WAYYYY better than stock, but it improved another 100% when I added the 4 piston caliper. in fact I endo'd my bike this weekend showing off doing stoppies cause the front has so much more brake force now. Anyway...have fun with it! P.S. I use Pirelli Dragon Corsa "yellow" (on the rear) and a super corsa race "blue" on the front 150 on the rear and 120 on the front, they work fantastic, slide nicely and grip at full lean.