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  1. #1
    Join Date
    Jul 2012
    Posts
    251

    Time to replace the rear brake pads?

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    Wednesday, I did some cleaning on the bike (though it looks like I missed a few spots). Last night, I took an easy ride out with my son, and the rear brakes were squeaking horribly! Before clean - no squeaky. After clean - big squeaky. I tried cleaning the rims and brake pads last night, but it didn't help the squeaking. I'm looking, though, and I'm wondering if maybe it's time to replace the rear brake pads? I've got around 1400 miles on the bike - is that typical?

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    "Susie" - 2012 Specialized Ruby Apex, not pink/Selle SMP Lite 209

  2. #2
    Join Date
    May 2008
    Location
    northern Virginia
    Posts
    5,856
    My brakes squeal after I've cleaned the rims if I don't wipe them down really really really well after cleaning them. Try that. With a dry cloth, or cloth that is damp with a little clean water.

    You can still see the ridges in the brake pads so they should still be okay.

    - Gray Trek Madone 4.7 road bike, mystery crack in top tube repaired by Calfee, Bontrager Affinity RXL saddle
    - Red Trek 6000 mountain bike, Bontrager Evoke WSD saddle

    Gone but not forgotten:
    - Silver Trek 2000 road bike
    - Two awesome and worn out Juliana saddles

  3. #3
    Join Date
    Dec 2005
    Location
    WA State
    Posts
    4,391
    They don't look too worn- they might have gotten a bit glazed though - if they continue to squeal, take some fine sand paper to them.
    "Sharing the road means getting along, not getting ahead" - 1994 Washington State Driver's Guide

    visit my flickr stream http://flic.kr/ps/MMu5N

  4. #4
    Join Date
    Mar 2010
    Posts
    157
    Simple green on rims if not wiped off can cause bad squealing. Good luck!
    Life goes by pretty fast. If you don't stop and look around once in a while, and do whatever you want all the time, you could miss it.

    2010 Fuji Roubaix 1.0
    2007 Fuji Absolute 2.0

  5. #5
    Join Date
    Sep 2006
    Location
    Central Indiana
    Posts
    6,132
    Quote Originally Posted by mariacycle View Post
    Simple green on rims if not wiped off can cause bad squealing. Good luck!
    Amen. Wipe the rims down with rubbing alcohol and see if that helps.
    Live with intention. Walk to the edge. Listen hard. Practice wellness. Play with abandon. Laugh. Choose with no regret. Continue to learn. Appreciate your friends. Do what you love. Live as if this is all there is.

    --Mary Anne Radmacher

  6. #6
    Join Date
    Apr 2006
    Location
    Maine
    Posts
    983
    I second/third cleaning the rims, and would definitely take a file/emory board to the pads.

  7. #7
    Join Date
    Jul 2012
    Posts
    251
    Quote Originally Posted by indysteel View Post
    Amen. Wipe the rims down with rubbing alcohol and see if that helps.
    That's exactly what I did last night. Didn't help.

    ETA: I'll try lightly sanding the pads.
    "Susie" - 2012 Specialized Ruby Apex, not pink/Selle SMP Lite 209

  8. #8
    Join Date
    Jan 2011
    Location
    Austin, TX
    Posts
    212
    If the brakes didn't squeal before cleaning the bike, then the squeal is the result of stick-slip behavior - the pad is sticking to the rim too well. I experience this on my bikes after I give the rims and pads a good cleaning with soap or degreaser. The easiest cure I found was to dab some talcum powder on the rims' braking surface, activate the brakes a couple times, then thoroughly wipe the powder off the rims and the pads with a dry cloth. Be forewarned, the first few times you brake after this, you might not get your usual full braking power.
    JEAN

    2011 Specialized Ruby Elite - carbon fiber go-fast bike
    DiamondBack Expert - steel road bike
    Klein Pinnacle - classic no-suspension aluminum MTB

 

 

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