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  1. #1
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    How to True a Disk Brake Rotor

    Does anyone have a good technique for doing this? I tighten the calipers to the point where they rub the rotor then bend the disk away from the rubbing caliper with a small crescent wrench. While this works to a certain point, I can never get it really true. There must be a better way of doing it.

  2. #2
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    there's no better way to true rotors. if the rotor is bended 1~2 spots, you can easily true it, but if it is like wave shape, you need a rotor truing gauge to true perfectly.

  3. #3
    Senior Member
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    I take the rotor off the wheel and place it on a hard flat surface. In my case a formica bench top. I then mark the rotor where it needs to be bent and put it (wraped in cloth) in a vice and gently tug on it with my hands. I do this until the rotor lies flat.

  4. #4
    cab horn
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    Quote Originally Posted by BikeToWork View Post
    Does anyone have a good technique for doing this? I tighten the calipers to the point where they rub the rotor then bend the disk away from the rubbing caliper with a small crescent wrench. While this works to a certain point, I can never get it really true. There must be a better way of doing it.
    Note that you should bend rotors at the "arms", not at the circumference. That does nothing.
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

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