Quote:
Originally Posted by vrships
the rotors are rated to be good for wear of 1.6mm, both front and rear.
So if your front rotor was 36mm when new, it should be > 34.4mm otherwise it needs replacement.
But some explain this thickness as "the minumium to allow for resrufacing, meaning that you can continue using it beyond 34.4mm if you don't machine them. Not sure if this is correct.
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There can be legal implications so I'm pretty sure it's not just for resurfacing.
It's usually the minimum thickness that manufacturers can guarantee its proper operation and efficiency. Once it goes below the minimum, it can negatively affect its heat dissipation and structural integrity.