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Thread: Brake Noise

  1. #1
    FReak
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    Brake Noise

    Hi, have a set of 2008 Avid Juicy 7 Ultimates and I have been riding them for about a month now, every day, and they seem to have developed a lot of brake noise and if I hold them int he right spot, they even vibrate and grab. Ideas?
    2010 Specialized Demo 8 II (Upgraded to II from I)
    2008 Specialized Enduro SL Expert

  2. #2
    ride hard take risks
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    Possibly the caliper needs to be re-centered.
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  3. #3
    FReak
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    How would I go about recentering the caliper?
    2010 Specialized Demo 8 II (Upgraded to II from I)
    2008 Specialized Enduro SL Expert

  4. #4
    ...idios...
    Reputation: SteveUK's Avatar
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    You'll have to excuse dogonfr; he posts to SPAM with his signature, not to actually supply useful content. The ambiguity of his posts means that, as you've found here, he needs to give multiple 'replies', thus blanketing the thread with all that multi-colored nonsense.

    Anyway, caliper alignment is pretty much the first thing to check if you have a noisy brake. On a hydraulic system such as yours, the caliper needs to be fixed over the rotor so that the rotor runs smack bang through the centre of the slot in the caliper. With this fundamental part of the set-up done, it should ensure that both pistons, and therefore both pads, extend equally when the lever is pulled and that the pads are both perfectly parallel to the rotor and touch it at the same time and with even pressure.

    The Avids use the CPS, a far from fool-proof (no offence intended) way of supposedly aligning the caliper. I'd recommend ignoring the conical washer system and just loosen the two Allen bolts and align the caliper visually, remembering to check each 'end' of the rotor slot to make sure that clearance is equal. Tighten the caliper bolts each a little at a time to help ensure even torque. Be prepared to indulge on some trial and error adjustments.
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  5. #5
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    Quote Originally Posted by FROGMAN524
    How would I go about recentering the caliper?
    Here are a couple great link.

    http://www.parktool.com/repair/readhowto.asp?id=142

    http://www.utahmountainbiking.com/fix/index.htm
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  6. #6
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    Quote Originally Posted by SteveUK
    You'll have to excuse dogonfr; he posts to SPAM with his signature, not to actually supply useful content. The ambiguity of his posts means that, as you've found here, he needs to give multiple 'replies', thus blanketing the thread with all that multi-colored nonsense.
    I Love you SteveUK

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  7. #7
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    Juicy Ultimate Users Manual

    Scroll down to step 6 of the installation procedures for aligning the calipers.

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