just got this rotor yesterday, i noticed this chip on the side when i was about to install it. is this a defective rotor? or is this a balancing feature?

 

I don't think I've ever seen one with that cut in it. I would take it back and play it safe.

 

wtf?

ummm where did you get them and what kind are they?

 

that normal, at least from the ones I have seen. I purchased few new rotors of acura, and some had it, some did not !

 

it is fine... that is how they balance them.

these are defective:

 

sometimes they place metal wires in-side of the vent holes to balance them (vs. machining them).

 

Yes, perfectly normal.

 

ok i'll just install it, tnx a lot for the feedback

 

I believe they use that on some rotors so you know how much you can machine them without over doing it.

 

I bought some Brembo rotors off a guy on HT and there was a sizable nick missing from the face of the rotor on the outer edge.....It has gotten a little bigger....fark

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Willard &raquo;</TD></TR><TR><TD CLASS="quote">sometimes they place metal wires in-side of the vent holes to balance them (vs. machining them).</TD></TR></TABLE>

I pulled a metal wire out of my rotor before

 

I noticed the same thing on rotors i bought a while back and brought them back only to be told that it was normal and was for balance...i was figuring it wasnt a piece missing as the both faces of the disc were cut exactly the same and there was no rough edge like a bit had chipped out of it but i wanted to be sure....fitted them and they were fine.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Willard &raquo;</TD></TR><TR><TD CLASS="quote">it is fine... that is how they balance them.

these are defective:


</TD></TR></TABLE>

i would not call those defective.............just well used

edit: and part of the reason they do not offer a lifetime warranty anymore