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What's the Deal with the "Grooves" in Z4M Rotors
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06-30-2022, 09:39 AM
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Reborn_
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Ok so wrapped the job up. Basically all 4 fronts had about a 40 degree cutout. The old rears had about a 120 degree cut out and the new ones had a 10 degree cutout. It’s probably the case that each manufacturing lot will have similar cutouts.
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