There is no groove at all. It's the reflection of the photo. It's flat and flush!
See the first post for an angled photo. I only took a photo for one rotor but they are identical on both rotors on each front/back side.
Quote:
Originally Posted by cleex024
can you take a picture of it from an angle...it looks like there is some wear there...for 300 miles there should be no wear but looks like there is a decent groove in the rotor.
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