I just installed new cross-drilled & slotted rotors about a month ago. I noticed last night that the rear driver's side rotor was cracked. I knew that X-drilled rotors had the tendency to crack, but isn't this a bit premature?

I haven't been to the track, and have put less than a thousand miles since the install. The crack is on the outer edge and goes through one of the drill holes.

How dangerous is this to drive on? I obviously will have to replace this, but do I need to put the stock rotors on until I can get a replacement? Has anyone else experienced this? this soon?

 

It will probably be fine to drive on. How deep is the crack? What company rotors?

 

What brand rotors??

 

I bought them from another forum member that said they were Rotora, but I'm not positive. The crack is about an inch long now, but doesn't look very deep.

I'm just concerned about it cracking further and destroying my caliper or pads.

 

a lot of cross drilled rotors tend to crack from what i've seen.

 

Think they may have been cracked when you bought them?

 

They were fine when I got them... I have heard that X-drilled tend to crack, but I didn't figure they would after this short of time under normal driving conditions....