Are these normal in Power Slotted Rotors
#1
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So i just put on Power Slotted Rotors and noticed these Cracks? or something...They are only on the Driver side rotor and like on about 3/4 of the rotor in no particular pattern...I looked as close as i can & it seems it's just might be the pattern left from the machine cutting the rotor to begin with but i figured i just ask..
![](http://i61.photobucket.com/albums/h52/ny2la17/photo-2.jpg)
#2
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Normal marks from a centerless grinder - which is the right way to surface a disc. Nothing to worry about, they'll wear off quickly enough.
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