Quote:
Originally Posted by TEF
Likewise for rotors that are little more than a machined disk of steel. It boils down to pretty much rotors with a coating that minimize rust or cheaper ones without coating. The OE rotors on a 5 series are a little different being of two-piece construction (steel disk and aluminum hub). However, replacement, even OE ones, seem to be one-piece (all steel).
|
I posted just a couple of articles above this, with links to genuine BMW two-piece, and PAGID two-piece.
Yes, lots of the traditional OE brands (Zimmerman, Brembo, Balo) do appear to be one piece. Hence - I won't be going with those, since two-piece is the proper construction. I/we have enough problems keeping the front brakes running true - no need to add more thermal distortion than necessary.