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  #16  
Old 06-21-2002, 02:06 PM
techbike
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I believe rotors ate "turned" by cutting the surface on a special lathe to ensure the surface is almost mirror-smooth flat and falls within a specific run-out tolerance. Limits are set to a minimum thickness that the rotors can be cut down to. MB discourages the practice but many have done it without adverse effects.
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