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  1. #1
    mtbr member
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    Brakes squealing VERY LOUD

    Hello members,

    I just cleaned my bike and now the brakes are making an obnoxious squealing noise. It will stop if I put an just slight pressure on the brakes but then starts right back up. I have cleaned the rotors with brake cleaner and it still makes a ton of noise.

    I've read online that you can take off the rotors and use sandpaper on the rotors and then clean with rubbing alcohol.

    Any idea how to get rid of the squealing?

  2. #2
    El CicloPath!!!!!!!
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    Dd you get any oils, detergent, grease on the pads? If you did, then they are contaminated. Take them out and light sand them with 100-200 grit. Clean the discs with 91% alcohol. Rebed and see if the squeeling goes away

  3. #3
    mtbr member
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    I will try that; i did spray the entire bike with bike cleaner so chances are it got on the brake pads.

    Thanks for the recommendation.

  4. #4
    rebmem rbtm
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    Quote Originally Posted by Fachiro1 View Post
    Dd you get any oils, detergent, grease on the pads? If you did, then they are contaminated. Take them out and light sand them with 100-200 grit. Clean the discs with 91% alcohol. Rebed and see if the squeeling goes away
    Sanding won't get contaminants out of pads.

    Soak the pads in alcohol and give them a good scrub.
    Dry the pads off and heat them up with a blow torch / stove hot plate / oven / frying pan / BBQ to burn the contaminates in them, contaminated pads can give off a lot of smoke.
    Let the pads cool down and give them another soak and scrub with alcohol.

    After pads and rotors have been cleaned with alcohol they will need to be re-burnish by performing 20 to 30 stops.

    If the pads don't perform any good after cleaning, burning and re-burnishing then throw them away and get some new ones.

  5. #5
    El CicloPath!!!!!!!
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    Actually, it might. My pads were contaminated with some oil and sanding did fix my squeel. If its only the surface layer of the pad, then it might work.

    You mightvas well try it first before having to resort to baking them or using a blow torch.

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