Advertise on Bikeforums.net



User Tag List

Results 1 to 16 of 16
  1. #1
    Downtown Spanky Brown bautieri's Avatar
    Join Date
    May 2007
    Location
    Camp Hill, Pennsyltucky
    My Bikes
    07 Raliegh Grand Sport 98ish Mongoose Manuever
    Posts
    2,099
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    They squeal like a piggy on a spit

    Got a Q for the mechanically inclined.

    I got a set of linier pull brakes (V-brakes) that squeal horribly with the front being considerably worse. Research has indicated that I should "toe-in" the brake pads. To do so I intend on using a shim of some sort but I was wondering if it really is as simple as loosening the bolt that holds the pad to the arm, shimming the pad out, then retightening. It would seem to me that the act of retightening would square the pad back out to its current position. If anyone has any suggestions I would sure appreciate it. Any thoughts on what else it could be? The rims are brand new as are the brake pads, pad position on the rim appears to be proper.

  2. #2
    Insane Bicycle Mechanic Jeff Wills's Avatar
    Join Date
    Mar 2008
    Location
    other Vancouver
    Posts
    6,710
    Mentioned
    15 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by bautieri View Post
    Got a Q for the mechanically inclined.

    I got a set of linier pull brakes (V-brakes) that squeal horribly with the front being considerably worse. Research has indicated that I should "toe-in" the brake pads. To do so I intend on using a shim of some sort but I was wondering if it really is as simple as loosening the bolt that holds the pad to the arm, shimming the pad out, then retightening. It would seem to me that the act of retightening would square the pad back out to its current position. If anyone has any suggestions I would sure appreciate it. Any thoughts on what else it could be? The rims are brand new as are the brake pads, pad position on the rim appears to be proper.
    You might get better answers on the "Mechanics" forum, but, yes- it is as simple as that. Here's a good start: http://parktool.com/repair/readhowto.asp?id=21

    V-brake squeal is a common issue. Other causes are:

    1.Contaminated pads and/or rims (clean thoroughly, finishing with alcohol)
    2. poor surface finish (smooth with Scotch-Brite pad)
    3. loose fitting brake pivots (not much you can do- swap the brakes or the bike)


    I've had a couple different bikes that squealed horribly after I put on Kool-Stop salmon colored pads and brand-new Velocity rims. The squeal went away when I switched to Kool-Stop black pads. After the rims wore in a bit, I switched back to the salmon pads and they didn't squeal.
    Jeff Wills

    All my bikes.

  3. #3
    The Site Administrator: Currently at home recovering from a couple of strokes,please contact my assistnt admins for forum issues Tom Stormcrowe's Avatar
    Join Date
    Mar 2006
    Location
    South Florida
    My Bikes
    Techna Wheelchair and a Sun EZ 3 Recumbent Trike
    Posts
    16,012
    Mentioned
    10 Post(s)
    Tagged
    4 Thread(s)
    Well, you could use the solution I used on my Nishiki......
    I "Fixed" it. (Went Fixed Gear and never touch the remaining front brake, ever....it's there for show only. )

    on light duty due to illness; please contact my assistants for forum issues. They are Siu Blue Wind, or CbadRider or the other 3 star folk. I am currently at home recovering from a couple of strokes. I am making good progress, happily.


    . “He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you.”- Fredrick Nietzsche

    "We can judge the heart of a man by his treatment of animals." - Immanuel Kant

  4. #4
    Gears? CliftonGK1's Avatar
    Join Date
    Jul 2006
    Location
    Philadelphia, PA
    My Bikes
    '08 Surly Cross-Check, 2011 Redline Conquest Pro, 2012 Spesh FSR Comp EVO, 2009 Spesh Singlecross, 2011 RM Flow1
    Posts
    11,321
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    You shouldn't need a shim for the pad holder adjustment. Loosen the retaining screw and the pads are mounted via a spherical washer to allow for 360-degree adjustment of the pad angle, assuring you get appropriate toe-in along with correct angle of contact to the braking surface of the rim.

    If it's an issue with the pivots being loose and allowing the entire armature to shudder, then there's not much you can do about that.
    "I feel like my world was classier before I found cyclocross."
    - Mandi M.

  5. #5
    Ceci n'est pas un vélo. mtclifford's Avatar
    Join Date
    Apr 2009
    Location
    Morgantown, WV
    My Bikes
    Trek 7.2 FX, Canondale Six Carbon 3
    Posts
    333
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    As a West Virginian, I was pretty terrified to open this thread.

  6. #6
    Downtown Spanky Brown bautieri's Avatar
    Join Date
    May 2007
    Location
    Camp Hill, Pennsyltucky
    My Bikes
    07 Raliegh Grand Sport 98ish Mongoose Manuever
    Posts
    2,099
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Tom Stormcrowe View Post
    Well, you could use the solution I used on my Nishiki......
    I "Fixed" it. (Went Fixed Gear and never touch the remaining front brake, ever....it's there for show only. )

    It's tempting but I am hessitent to fixify a brand new $1500 bike.

    Snazzy Nishiki btw

    Thanks for the suggestions, I'm going to try and toe the pads in before my ride tonight. If it works awesome, if not...well...she's almost ready for her 300 mile tune up and it can be the shop's problem. If it ends up being shuddering arms then I am going to toss the whole V-brakes for a nice set of canti's. God I hate that travel agent with a passion matched only by my hated of Necco Waffers.

  7. #7
    Gears? CliftonGK1's Avatar
    Join Date
    Jul 2006
    Location
    Philadelphia, PA
    My Bikes
    '08 Surly Cross-Check, 2011 Redline Conquest Pro, 2012 Spesh FSR Comp EVO, 2009 Spesh Singlecross, 2011 RM Flow1
    Posts
    11,321
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by bautieri View Post
    If it ends up being shuddering arms then I am going to toss the whole V-brakes for a nice set of canti's.
    Don't read the CX brakes thread over on the Commuting forum! There's a lot of smack talk going on over there about cantis vs. Vs vs. discs, and how cantis may as well be worse than just trying to reach down and grab your spokes as far as braking is concerned.
    Personally, I love my canti brakes and wouldn't switch for anything.
    "I feel like my world was classier before I found cyclocross."
    - Mandi M.

  8. #8
    Downtown Spanky Brown bautieri's Avatar
    Join Date
    May 2007
    Location
    Camp Hill, Pennsyltucky
    My Bikes
    07 Raliegh Grand Sport 98ish Mongoose Manuever
    Posts
    2,099
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Adjusting the toe did the trick, no more sqealing

    It's been my observation that properly adjusted canti's will stop you just as well as anything else. V brakes paired up with STI brifters however is teh suck.

  9. #9
    Senior Member Hill-Pumper's Avatar
    Join Date
    Jun 2008
    Location
    In Oregon looking for more hills to ride
    My Bikes
    2013 Norco Sight Killer B-1,2013 Lynskey R330, 2008 Kona Jake
    Posts
    774
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by bautieri View Post
    Adjusting the toe did the trick, no more sqealing

    It's been my observation that properly adjusted canti's will stop you just as well as anything else. V brakes paired up with STI brifters however is teh suck.
    I would love to say that is always the case, but the Avid Shorty 4's that came on my Jake are less then desirable for stopping power. I knew that going in because of some of the reviews here on BF. I am upgrading to Tektro CR720 canti's with Kool-Stop black MTB pads. I hope that does the trick.

  10. #10
    I'm a Cyclist! Missbumble's Avatar
    Join Date
    May 2008
    Location
    Boca Raton
    My Bikes
    Specialized Dolce Elite
    Posts
    1,397
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    All I have to say is the title of the thread is enough to make me a vegetarian ...the pooor lil piggy.

  11. #11
    Full of Love and Meatloaf aidanpryde18's Avatar
    Join Date
    Jul 2007
    Location
    Louisville, KY
    Posts
    176
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Missbumble, if it makes you feel any better, in my experience, the pig is usually dead before it gets put on the spit.

    That and barbecue tastes waaay too good to ever give up.

  12. #12
    Gears? CliftonGK1's Avatar
    Join Date
    Jul 2006
    Location
    Philadelphia, PA
    My Bikes
    '08 Surly Cross-Check, 2011 Redline Conquest Pro, 2012 Spesh FSR Comp EVO, 2009 Spesh Singlecross, 2011 RM Flow1
    Posts
    11,321
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by bautieri View Post
    Adjusting the toe did the trick, no more sqealing

    It's been my observation that properly adjusted canti's will stop you just as well as anything else. V brakes paired up with STI brifters however is teh suck.
    Did you put a travel agent on that setup? V-brakes require different pull than traditional cantis or road brakes, that's why you need special V-brake drop bar levers or you need to use a travel agent pulley to get the appropriate pull.
    "I feel like my world was classier before I found cyclocross."
    - Mandi M.

  13. #13
    Lone Star Tex_Arcana's Avatar
    Join Date
    Feb 2008
    Location
    Houston, Tx.
    Posts
    562
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Don't worry Miz Bee.

    No one really puts live pigs on spits, and dead pigs don't squeal.
    Men do not quit playing because they grow old; they grow old because they quit playing. ~Oliver Wendell Holmes

    My Website: New Home http://www.eclectic-relic.co.cc/
    I'm a Twittering Idiot: http://twitter.com/Tex_Arcana

  14. #14
    Downtown Spanky Brown bautieri's Avatar
    Join Date
    May 2007
    Location
    Camp Hill, Pennsyltucky
    My Bikes
    07 Raliegh Grand Sport 98ish Mongoose Manuever
    Posts
    2,099
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Missbumble View Post
    All I have to say is the title of the thread is enough to make me a vegetarian ...the pooor lil piggy.
    Don't worry Miss B, this will reel you back over to omnivore side:



    *drools

  15. #15
    Downtown Spanky Brown bautieri's Avatar
    Join Date
    May 2007
    Location
    Camp Hill, Pennsyltucky
    My Bikes
    07 Raliegh Grand Sport 98ish Mongoose Manuever
    Posts
    2,099
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by CliftonGK1 View Post
    Did you put a travel agent on that setup? V-brakes require different pull than traditional cantis or road brakes, that's why you need special V-brake drop bar levers or you need to use a travel agent pulley to get the appropriate pull.

    Yeah, I have a set of travel agents. I think I may have made a mistake by having the cross levers removed. They annoyed me and took up space that was much better utilized by a computer and headlight.

  16. #16
    Tilting with windmills txvintage's Avatar
    Join Date
    May 2008
    Location
    North Texas 'Burbs
    My Bikes
    Many
    Posts
    4,832
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by mtclifford View Post
    As a West Virginian, I was pretty terrified to open this thread.
    Oh come on. Deliverance was one of the greatest love stories evar!

Posting Permissions

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