Concentric Rings on Brake Rotor

[dmw16]

I noticed the other day after getting home from my last track day that there were concentric rings on my brake rotors. The rotors are Stoptech 355mm. The rings are concentric with the rotors and can be felt if you drag your finger across the rotor. But I am not getting any kind of odd feeling thru the brake pedal or steering wheel under braking.

Is this just normal wear under track conditions.

In the event that it matters, I am using PFC01 pads.

[Gearhead999s]

Yes that is normal.I would be more concerned about the cracks starting from the drilled holes.Why would you get drilled rotors for a track setup?

[dmw16]

Originally Posted by Gearhead999s

Yes that is normal.I would be more concerned about the cracks starting from the drilled holes.Why would you get drilled rotors for a track setup?

I bought the kit used from another forum member and they were drilled. My next set of rings won't be drilled.

I've been keeping an eye on the cracks, but the general consensus is so long as they don't connect or go to the edge of the ring they are ok.