Advertise on Bikeforums.net



User Tag List

Results 1 to 6 of 6
  1. #1
    Senior Member
    Join Date
    Aug 2004
    Location
    San Francisco, CA
    Posts
    1,169
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    My brakes squeak.

    I have a 2005 Bianchi Axis cyclocross bike (this bike), with cantilever brakes.

    The front brakes squeal like crazy every time I slow down. The back brakes are nice and quiet all the time.

    How do I make my front brakes shut up?

  2. #2
    Call me The Breeze I_bRAD's Avatar
    Join Date
    Aug 2006
    Location
    Corbyville Ontario
    My Bikes
    2004 Litespeed Siena, 1996 Litespeed Obed, 1992 Miele (unknown model), 1982 Meile Uno LS.
    Posts
    3,699
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    toe them in

  3. #3
    Senior Member
    Join Date
    Aug 2004
    Location
    San Francisco, CA
    Posts
    1,169
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by I_bRAD View Post
    toe them in
    What is the procedure for doing this correctly?

  4. #4
    Call me The Breeze I_bRAD's Avatar
    Join Date
    Aug 2006
    Location
    Corbyville Ontario
    My Bikes
    2004 Litespeed Siena, 1996 Litespeed Obed, 1992 Miele (unknown model), 1982 Meile Uno LS.
    Posts
    3,699
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Depends on the design of the caliper, but you essentially want to set it up so the front of the pad contacts just before the rear does.

    Warning- if you've never tried this before prepare to get frustrated.

    Look on www.sheldonbrown.com or www.parktool.com for more specific instructions.

  5. #5
    Gone, but not forgotten Sheldon Brown's Avatar
    Join Date
    Jul 2002
    Location
    Newtonville, Massachusetts
    My Bikes
    See: http://sheldonbrown.org/bicycles
    Posts
    2,301
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by notfred View Post
    I have a 2005 Bianchi Axis cyclocross bike (this bike), with cantilever brakes.

    The front brakes squeal like crazy every time I slow down. The back brakes are nice and quiet all the time.

    How do I make my front brakes shut up?
    Squealing brakes is a common problem, and there's no one simple solution to it.

    It's caused by the friction of the brakes against the rim flexing the brake arms, which then slip back, grab, slip back, grab, etc. This process happens at such high speed that it often causes an audible vibration.

    All brakes do this, but with luck the pitch (frequency) is too high for human hearing.

    This is generally annoying, but not a safety issue. Unlike automotive brakes, bicycle brakes that squeal are usually in good functional condition.

    Here are some things to try:

    "Toe in" the brake shoes, so that the front edge of the shoe hits the rim slightly before the rear edge. Not all brake systems permit this type of adjustment, but most do.

    Clean the rims with a good, oil-free solvent (citrus, alcohol, something like that.)

    If the pivots of your brakes are adjustable, make sure that you've eliminated as much play as possible without causing them to bind.

    Different brake shoes may help. I particularly recommend Kool Stop salmon colored units.

    Sheldon "Shhhh..." Brown
    Code:
    +--------------------------------------------------------------+
    |   Wherever there is sufficient space for a motor vehicle     |
    |   there must be sufficient space for a bicycle,              |
    |   because the bicycle is smaller. Is that not obviously so?  |
    |                                         -- John Forester     |
    +--------------------------------------------------------------+
    [COLOR=blue][CENTER][b]Harris Cyclery, West Newton, Massachusetts[/b]
    Phone 617-244-9772, FAX 617-244-1041
    [URL= http://harriscyclery.com] http://harriscyclery.com[/URL]
    Hard-to-find parts shipped Worldwide
    [URL=http://captainbike.com]http://captainbike.com[/URL]
    Useful articles about bicycles and cycling
    [URL=http://sheldonbrown.com]http://sheldonbrown.com[/URL] [/CENTER] [/COLOR]

  6. #6
    Senior Member mike's Avatar
    Join Date
    Jul 2000
    Location
    Snowy midwest
    Posts
    5,392
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    +1 for Sheldon's comments. Also, you might have some glazing on the brake pads. Remove the brake pads and rub the braking surface on the concrete sidewalk (use your neighbor's sidewalk because it leaves a mark).
    Mike

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •