strange rotor wear--help?- Mtbr.com
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  1. #1
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    strange rotor wear--help?

    This rotor wear on my brand new Enduro seems strange. Elixir R SL brakes w/ G3 rotors. The rear brakes do not looks like this... The shiny wear section covers the majority of the rotor surface whereas this wear area, on the front, seems extraordinarily narrow. Any ideas? Is this normal?


  2. #2
    Never trust a fart
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    Caliper is probably not centered correctly. Looks like it might be tilted slightly. How does the other side look?

  3. #3
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    Check washer order and completeness.

  4. #4
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    Both sides look about the same. Washers are in the correct order and it is centered properly. I see no tilting and the pad spacing is nearly exactly the same on both sides. Is it possible that the pads are just still breaking in and therefore their "crests" are wearing down to be level?

  5. #5
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    Looks to me like the center of the pad is glazed. Pop em out, work the surface VERY LIGHTLY with some finer-grit sandpaper (put sandpaper on smooth surface, mirror works well, and rub the pad on it). Then, sand the surface of the rotor (you can be aggressive with that, the rotors are quite resilient) until it's uniformly "scratched" (basically, that band is gone).

    Also possible something is outright stuck in the pad, though unlikely.

  6. #6
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    do you use the rear brake more than the front?

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