Rotor wear

Discussion in 'General MTB Discussion' started by Exie, Apr 16, 2017.

  1. Exie

    Exie Likes Dirt

    Hi Folks, just wanted a quick opinion if this was normal or not.

    Usually, I just ride a set of pads/rotors until they get lips/grooves cut into them, but these have gone all weird, looks like I've been hacking at them with a screwdriver ?!

    Is it possible is was just crappy alloy they were made out of or what ?!
  2. schred

    schred Likes Bikes and Dirt

    I'd check your caliper is firmly attached, not sure how you've done that. Any wear marks caused by brake pads can only appear as concentric lines/circles.
  3. Flow-Rider

    Flow-Rider Eats Squid

    Is it the whole way round the rotor? Looks like something foreign has rubbed up against the rotor from here.
  4. Shinigami

    Shinigami Likes Dirt

    did you catch a stick or something in your wheels?
  5. moorey

    moorey Isn't flammable.

    That's been emery papered, fo shiz.
  6. Haakon

    Haakon Not happy, Jan.

    Yep. Thats been mucked with big time. Not in any way possibly related to use despite how fucked up anything is.

    But ultimately the rotor is fine - just make sure its all actually ok and working properly and ride it. The marks will fade quickly and not impair performance or safety.
  7. Flow-Rider

    Flow-Rider Eats Squid

    Looks similar to being dragged along the concrete.
  8. Exie

    Exie Likes Dirt

    Thanks everyone, pretty much answered all my questions. I know I frigged up a set of pads when I contaminated them, so I think the shop might have sanded the rotor to clean it.

    Brakes seem ok for now, if you think its ok, I'll keep rolling with it.
    I'll make a note to get new pads + rotors next time around.
  9. Flow-Rider

    Flow-Rider Eats Squid

    They'll clean up a little after a few rides, nothing to worry about unless the rotor goes undersize.
  10. moorey

    moorey Isn't flammable.

    Surely no shop would sand a contaminated rotor....for starters, it doesn't help.
    Keep riding it, will be fine. Clean it with metho/acetone/isopropyl if it's contaminated....Cook your pads if they are...

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