Newbie has rotor question- Mtbr.com
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  1. #1
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    Newbie has rotor question

    I have just got my feet wet in mountain biking. Really excited to do it right this time. I have recently bought a used Specialized bike with disc brakes, though the rear rotor is slightly bent. Can I straighten it myself, by professional or do I need to replace it?

    There is a slight drag if the rim spins freely. The rim is true. It is definitely the rotor.

    My other question (remember I am a newbie) do these bend regularly through typical recreational use?

    Thanks for any suggestions or insight.

  2. #2
    Evolutionsverlierer
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    Quote Originally Posted by The Squeaky Wheel
    Hands & channel-lock pliers or crescent wrench for me. Be sure to wrap the wrench in a rag so you don't gauge the rotor. Clean rotor with isopropyl afterwards.
    No need for a special gauge. Just true to the pads.
    From this thread http://forums.mtbr.com/showthread.php?t=48816

    You can bent a rotor fairly easy via force from the side so it might not have happened during a ride.

  3. #3
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    Cool, thanks. I will check that thread out.

    So rotors are pretty susceptible to damage? Even from packing the bike in the truck or rack, huh? Good to know.

  4. #4
    Evolutionsverlierer
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    Under normal circumstances you should have have to worry,
    but they are not really designed to take any impact from the side.
    You can even bent motorcycle rotors fairly easy that way.

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