Actually any of the "full floating" quality rotors are good and so far I have not warped one of them. I have had the Harley ones on a 01 RK and they worked great for 30K that I rode the bike, then on the SEEG I had Renegade's verison of full floating and they also worked for the 30K with 6-Piston HHI Calipers to a very high level, almost equal to my 02 Buell, then on the 09 SERG I have the Polished HD ones and they are hanging in there without any problems. Of the three bikes all had same principle rotors but different calipers. RK with chrome HD Calipers and Lyndall pads stopped, at the time, I thought pretty good, the SEEG with the HHI's and Lyndall pads was amazing in the stopping department so far superior to HD calipers/rotors you had to be careful when riding in a group or people would be almost running over you from behind, the SERG with HD/Brembo calipers and Lyndall pads stops better than the RK did but no where near the SEEG with HHI's.