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  1. #1
    mtbr member
    Reputation: ol-crank's Avatar
    Join Date
    Oct 2005

    is squealing more likely the pads, or the disc

    I just put on a new set of the old Formula B4s and had my LBS bleed the brakes. The back is fine but the front squeals pretty bad. I took off the pads and sanded them, cleaned the disc with alcohol, wiped everything and same thing after about an hour on the bike. I do have extra pads, and an extra disc. Any suggestions?

  2. #2
    Reputation: highdelll's Avatar
    Join Date
    Oct 2008
    you say you just put them on?
    give them a bit of time to bed in would be my suggestion...
    I can make my brakes squeal (i have to try) easier when the rotors are freshly cleaned (ie 'squeaky' clean)
    after some bed-in time some of the pad material or dust works into the micro-scratches on the rotor and should quiet down (at least I think )
    Honestly... ahh I give up

  3. #3
    mtbr member
    Reputation: ToneyRiver's Avatar
    Join Date
    Mar 2009

    Let them wear in

    I agree just keep riding for a while and the brakes should break in and stop making noise.

  4. #4
    It's about showing up.
    Reputation: Berkeley Mike's Avatar
    Join Date
    Jan 2004

    Last time I looked at the back of Marta pads

    it said something like (paraphrase) take your bike up to top speed and brake hard to a stop 25 times.

    My wrench said to take it to the top of our steepest local hill, Marin Ave in Berkeley (about.5 mile at 19%), and ride the brakes all the way down.

    It worked.

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