Quote:
Originally Posted by gomer_110
The Z1 2-pc rotors have been just fine on my autox car. Perhaps the heavier use on a road course is the real problem.
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I have not had any issue with the Z1 2 piece rotors as well. I think some people mistake the checkering on the rotor face to be cracking. The the simple test is to run your fingernail across the rotor face and if it doesn't catch in a groove then it is not cracked.
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