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  1. #1
    Reputation: HPilot's Avatar
    Join Date
    Jan 2004

    Brand New XTR Discs rubbing ONLY when....

    sitting on the bike and pedaling.. In the stand they are A-OK. When riding it seems that the rotor is not 100 true. This is strange, but it seems to be caused by the weight on the rear.
    I checked the skewer, hub bolts, all other things. It is only one fraction of the disc that rubs, and it's annoying while riding. Because these are brand new, should I just let the pads 'rub out' and it will eventually go away or should I take off the disc and flatten it to 100% true? I can see it wobble ever so slightly- enough to contact the pad slightly under wieght.
    "A witty saying proves nothing."- Voltaire


  2. #2
    Nouveau Retrogrouch SuperModerator
    Reputation: shiggy's Avatar
    Join Date
    Dec 1998
    What frame, hubs?

    Yes, you should true the rotor.
    The trouble with common sense is it is no longer common

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