Advertise on Bikeforums.net



User Tag List

Results 1 to 7 of 7
  1. #1
    Senior Member lagrassa's Avatar
    Join Date
    Oct 2008
    Location
    Albuquerque NM
    My Bikes
    2003 Colnago Asso 1982(?) Guerciotti
    Posts
    87
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Help With Front Brake Squeal

    I posted this in the C&V forum but didn't get any response so I thought I'd try here:


    OK, I have vintage Campy (Super) Record brake calipers and changed out the stock Campy pads with salmon-colored Scott Matthausers. The front brake didn't squeal before, but it does now. I have the same set-up on my other bike and there is no squeal there. I realize the rims are different, but everything else is the same.
    I know that the front of the pad should make contact with the rim first, but I don't see any way to adjust the angle of the pad to accomplish this. Am I missing something here? Thanks.
    [SIGPIC][/SIGPIC]
    2003 Colnago Asso w/Campy Record
    1982 Guerciotti w/Campy 50th Anniversary
    1981 Colnago w/Campy Super Record
    2002 Litespeed Saber w/Shimano Dura-Ace
    1996 Litespeed Classic w/Campy Record
    1985 Guerciotti/AlAn w/Campy C-Record
    1990 Bianchi Genius in Celeste w/Campy Super Record
    1986 Pinarello Montello SLX w/Campy Super Record

  2. #2
    Peace and bicycle grease! une_vitesse's Avatar
    Join Date
    Apr 2008
    Location
    The Island, CA
    My Bikes
    '85 Schwinn Voyageur, Ross Mt Hood, Rossin, the Nugget
    Posts
    285
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    you can try a number of things:
    -use a rasp to rough up the pads
    -use emery cloth to sand the sidewalls
    -use rubbing alcohol to clean the sidewalls
    sometimes you have to do all three of the above to get results.
    what you don't want to do is try to bend the caliper arms to toe in your pads
    if all else fails, you might want to consider using different pads, either go back to the original ones, or install pads with curved washers that will allow toeing in.
    good luck!
    Ross Mt Hood
    Schwinn Voyageur
    Fuji Cross
    Rossin
    The Nugget

  3. #3
    Peace and bicycle grease! une_vitesse's Avatar
    Join Date
    Apr 2008
    Location
    The Island, CA
    My Bikes
    '85 Schwinn Voyageur, Ross Mt Hood, Rossin, the Nugget
    Posts
    285
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    one more thing, you can check if there is play between the caliper arms. that can cause brake squeal too.
    Ross Mt Hood
    Schwinn Voyageur
    Fuji Cross
    Rossin
    The Nugget

  4. #4
    Senior Member lagrassa's Avatar
    Join Date
    Oct 2008
    Location
    Albuquerque NM
    My Bikes
    2003 Colnago Asso 1982(?) Guerciotti
    Posts
    87
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thnaks for the tips. I will try them. I notice that the back brake, same exact combination of rim and pads, does not squeal. The idea of a curved washed seems to make sense to get the toe-in. Any idea on where to get these?
    [SIGPIC][/SIGPIC]
    2003 Colnago Asso w/Campy Record
    1982 Guerciotti w/Campy 50th Anniversary
    1981 Colnago w/Campy Super Record
    2002 Litespeed Saber w/Shimano Dura-Ace
    1996 Litespeed Classic w/Campy Record
    1985 Guerciotti/AlAn w/Campy C-Record
    1990 Bianchi Genius in Celeste w/Campy Super Record
    1986 Pinarello Montello SLX w/Campy Super Record

  5. #5
    Peace and bicycle grease! une_vitesse's Avatar
    Join Date
    Apr 2008
    Location
    The Island, CA
    My Bikes
    '85 Schwinn Voyageur, Ross Mt Hood, Rossin, the Nugget
    Posts
    285
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    your rear wheel probably locks up before the brakes have any chance of squealing.
    curved washers come stock with "v-brake" specific brake pads, although they work fine with road calipers, as long as you have enough clearance.
    Ross Mt Hood
    Schwinn Voyageur
    Fuji Cross
    Rossin
    The Nugget

  6. #6
    Senior Member lagrassa's Avatar
    Join Date
    Oct 2008
    Location
    Albuquerque NM
    My Bikes
    2003 Colnago Asso 1982(?) Guerciotti
    Posts
    87
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    An idea I had was to cut a thin flat washer in half and use it as shim along with the flat washer that is already there to get a bit of toe-in.
    [SIGPIC][/SIGPIC]
    2003 Colnago Asso w/Campy Record
    1982 Guerciotti w/Campy 50th Anniversary
    1981 Colnago w/Campy Super Record
    2002 Litespeed Saber w/Shimano Dura-Ace
    1996 Litespeed Classic w/Campy Record
    1985 Guerciotti/AlAn w/Campy C-Record
    1990 Bianchi Genius in Celeste w/Campy Super Record
    1986 Pinarello Montello SLX w/Campy Super Record

  7. #7
    Map maker cbchess's Avatar
    Join Date
    Feb 2008
    Location
    Richmond,VA
    My Bikes
    Ventana El Ciclon, Walt Works 29er, Specialized Enduro (fixed up for my son).
    Posts
    728
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    +1 toe in
    and clean the rims and rough up the pads

Posting Permissions

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