Still works fine, the front is 1.9mm and doesn't have the dark patches. I was thinking it might be the aluminium core showing through.
The markings on the rotor should specify a minimum thickness. Think it's 1.5mm for non-icetech rotors...
@chiroshi started
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Still works fine, the front is 1.9mm and doesn't have the dark patches. I was thinking it might be the aluminium core showing through.