Should I replace these rotor rings? (Pics)
 

I’m trying to decide whether it’s time to replace the rings on my PFC rotors. I would rather not wait until they crack at the track, but I also don’t want to change them way early. They are nowhere near min thickness but there are these cracks that you can feel with your fingernail. If it matters, these are almost 10 years old, but the car is garaged. Thanks for any advice.https://cimg6.ibsrv.net/gimg/www.evo...8e7b77ee3.jpeg
https://cimg0.ibsrv.net/gimg/www.evo...41469d2e3.jpeg
https://cimg0.ibsrv.net/gimg/www.evo...bdf7ed61e.jpeg

Yes, those rotors have seen better days:eek:. Way too many heat cycles. You got your monies worth {thumbup}

There are notes suggesting finger nail tests & cracks running to the edges etc. In this case, it appears its time to R/R those. Better safe than sorry.

$$$Imagine blowing a rotor on the track$$$

I agree with Minus. Once you start forming deep cracks like that it'll create a cascading effect as it cracks more and more very quickly. I wouldn't chance it.

Agreed. Age has more to do with these then cracking to the edge. Replacing them now is cheaper then REPLACING them later.

Thank for you all for the confirmation. I'll swap them out before my next event.

The little more surface cracks would be fine. But the bigger ones that you can probably fit your fingernail in and look 1-1.5" long are what make me say replace them.

https://cimg4.ibsrv.net/gimg/www.evo...cadd4dccc.jpeg
Ah...I feel much better now :)