I cannot answer the question but make sure you follow the mounting instructions. A couple years ago I watched a Honda S2000 right in front of me fly off a hard braking corner at 135 mph. I later asked one of his competitors (that I knew) what happened. He told me the guy had just installed new rotor rings and simply tightened the bolts up without paying attention to the torque requirements or the lock-tight usage. The guy hit the brakes and although the rotors stopped.......the bolts broke and were no longer connected to the hats!