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  1. #1
    billyymc
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    Sqealing Brakes - tried all the usual stuff

    Riding a 2007 Tricross Comp with Avid Shorty 4 brakes.

    Rear brake is fine - quiet.

    Front squeals like a pig. Have put on some Kool Stop multi MTB pads (multi-compound), cleaned the wheel, sanded the rim slightly,cleaned again, toed in the pads. Still squeals like hell, and has a bit of a shudder now too -- I'm thinking maybe I toed them in too much? Would that cause the shudder/stutter?

    Any other suggestions? Thanks.
    Last edited by billyymc; 07-22-09 at 11:07 PM.

  2. #2
    My bike's better than me! neil0502's Avatar
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    You can always try a brake booster.

    If the cause of your canti squeal is a slightly-too-flexy fork, then this could solve it.

    The "shudder" part leads me to believe this could be it.

  3. #3
    Great State of Varmint Panthers007's Avatar
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    I've had pads do this before. I just rode them like that one day. They shut up by themselves.
    How do you keep an idiot in suspense?

  4. #4
    aka Tom Reingold noglider's Avatar
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    I doubt you toed them in too much. You may not have toed them in enough.
    You don't read my signature anyway, do you?

    Tom Reingold, noglider@pobox.com
    Residences: West Village, New York City and High Falls, NY
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  5. #5
    cab horn
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    Those koolstops maybe your problem. Try $5 generics.
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  6. #6
    billyymc
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    Quote Originally Posted by operator View Post
    Those koolstops maybe your problem. Try $5 generics.
    Seriously? Seems like I've seen the KS's recommended to help brake squeal problems...why the generics?

  7. #7
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    Quote Originally Posted by neil0502 View Post
    You can always try a brake booster.

    If the cause of your canti squeal is a slightly-too-flexy fork, then this could solve it.

    The "shudder" part leads me to believe this could be it.
    Brake boosters have silenced my loud squealing V brakes with Koolstop pads - highly recommended.

  8. #8
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    Quote Originally Posted by billyymc View Post
    Riding a 2007 Tricross Comp with Avid Shorty 4 brakes.

    Rear brake is fine - quiet.

    Front squeals like a pig. Have put on some Kool Stop multi MTB pads (multi-compound), cleaned the wheel, sanded the rim slightly,cleaned again, toed in the pads. Still squeals like hell, and has a bit of a shudder now too -- I'm thinking maybe I toed them in too much? Would that cause the shudder/stutter?

    Any other suggestions? Thanks.
    I've been through what you've been through and tried the same fixes - none worked. The only thing that worked for me is a massive amount of toe-in (or toe-out if you prefer) -- about 2 mm at the front. This fixed the squeal at the expense of 'squishy' brake feel and a longer pull for hard braking. I dislike the squishy feel but I hate squeal more. I might try the brake booster suggestion mentioned above.

  9. #9
    billyymc
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    I think I'll give a brake booster a try. Any recommendations -- is any one better than another?

    bmorey - I probably have about that much toe-in as well, and I thought it might be excessive. I played with different amounts, and nothing seemed to work too well. I put in what I thought was too much, and it worked for the first couple rides, then started squealing louder than ever.

    Makes me want disc brakes.

  10. #10
    aka Tom Reingold noglider's Avatar
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    Toeing in costs less than a brake booster. I'm telling you, it will work. Keep increasing the toe-in until the noise goes away.
    You don't read my signature anyway, do you?

    Tom Reingold, noglider@pobox.com
    Residences: West Village, New York City and High Falls, NY
    Blogs: The Experienced Cyclist; noglider's ride blog

  11. #11
    billyymc
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    Quote Originally Posted by noglider View Post
    Toeing in costs less than a brake booster. I'm telling you, it will work. Keep increasing the toe-in until the noise goes away.
    You're right. Will do this first.

  12. #12
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    Well, a brake booster costs about $6 (one for the front brake only). The pads can be left parallel to the rim - no toe in necessary. To me when the pads are parallel to the rim, the braking action feels more powerful compared to toed in pads. So if toed in pads feel squishy try a brake booster.

  13. #13
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    I had the same problem on my 'cross bike with carbon fork. Seemed that no matter what I tried the front brakes would squeal and shudder like crazy. Toeing the pads to an extreme is NOT recommended as you will find that you will lose alot of braking power. After trying many different pads I think I've finally found the answer ... Kool Stop Tectonic pads. These are very highly rated and after putting them on my bike with no toe-in there is no squealing and the brakes are rock solid. You can get the pads at Cambria Bike for less than $10/pr ... http://www.cambriabike.com/shopexd.a...RIM+BRKAE+PADS

  14. #14
    Team Beer Cynikal's Avatar
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    Shorty's have been known to squeal like crazy and I couldn't ever get them to stop. You can switch out to something like the Tektro 720 for $25 (use you KS pads) and you will get excellent power and modulation with no squeal or shutter. I'm currently running these on my Cannondale CX9 with the EC90X carbon fork with great luck.
    I'm not one for fawning over bicycles, but I do believe that our bikes communicate with us, and what this bike is saying is, "You're an idiot." BikeSnobNYC

  15. #15
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    Operator has it almost right. The Loud Stops ARE the problem. bk

  16. #16
    Great State of Varmint Panthers007's Avatar
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    Operator is right - you don't know how to adjust brake-pads.
    How do you keep an idiot in suspense?

  17. #17
    Great State of Varmint Panthers007's Avatar
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    Humidity would mimic the effects of riding in the rain. Wet-rim squeal is a common phenomena. Perhaps a softer pad, or a harder one for this? I'd experiment.
    How do you keep an idiot in suspense?

  18. #18
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    Brake boosters -- is there another name for this item? I can't find them here in Australia. May be they'are called something else here. I'd like to try one on the front of my bike.

  19. #19
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    Try this place: http://abbotsfordcycles.com.au/public/index.php

    They are the best bike shop in Melbourne for odds and ends that "mainstream" bike shops would not stock!

  20. #20
    Senior Member Bikedued's Avatar
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    Makes sure the brake bushings aren't shot too. front/back play can cause the same problems. See if the brake arms seem loose?,,,BD

  21. #21
    Senior Member
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    Quote Originally Posted by reueladhikari View Post
    Try this place: http://abbotsfordcycles.com.au/public/index.php

    They are the best bike shop in Melbourne for odds and ends that "mainstream" bike shops would not stock!
    Thanks for the tip -- but no luck. Lots of nice things, though.

  22. #22
    billyymc
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    OK...i'm going to make a confession here, as embarassing as it might be -- had the brakes reversed toed!

    Why?

    Because I mis-interpreted the toe as being the part of the pad that would be pointing facing into the the spinning wheel. Momma always said....

    So, toed slightly and correctly, using Kool Stops -- no squeal, good braking power.

    Toe = front. DOH!

  23. #23
    My bike's better than me! neil0502's Avatar
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    Quote Originally Posted by billyymc View Post
    OK...i'm going to make a confession here, as embarassing as it might be -- had the brakes reversed toed!
    Ayup.

    That'd do it

  24. #24
    aka Tom Reingold noglider's Avatar
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    Don't feel bad. We all make mistakes like that, and you're especially excused if you're new to this stuff.

    Yeah, healed-in brakes should squeak pretty well!
    You don't read my signature anyway, do you?

    Tom Reingold, noglider@pobox.com
    Residences: West Village, New York City and High Falls, NY
    Blogs: The Experienced Cyclist; noglider's ride blog

  25. #25
    Great State of Varmint Panthers007's Avatar
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    I just toed-in the pads on the Dia-Compe brakes that came on my old PUCH 3-spd. I used an adjustable-wrench on the arms. It's nice to get back to the basics once in a while...now where's my hammer....
    How do you keep an idiot in suspense?

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