Just wondering if anyone was able to solve the rear brake squeeling issue. :madman: Thanks.
Giant XTC 29er 1 - anyone solve the rear brake squeeling problem?
tonyride1
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Lots of threads about such problems & solutions in the Brake Time forum. For instance:
The Juicy brake turkey warble/vibration MEGA THREAD
The Juicy brake turkey warble/vibration MEGA THREAD
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I run Elixir CR on my XTC 29er, it has got rid of the squeal, still got the Avid Turkey Wobble at times though.
My LBS ended up swapping out the rotor and switching to organic pads. Works fine now, just lost a little stopping power with the organics. I already wore those pads out and switched back to the sintered pads and the problem is still gone. I think the rotor more or less solved it.
Didn't Giant redesign the brake mount on the 2011's?
Didn't Giant redesign the brake mount on the 2011's?
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I just cleaned my Avid rotors on my Reign-1 with rubbing alcohol... squeal went away for awhile. Guess I either need to clean them regularly or just live with the squeal.
Lets get specific
Of all of you who claimed that they did something to fix the sqealy brakes, how many of you got it fixed long term? i have tried every combo of pads/rotors imagimable, and it makes the proble go away....for about a week, then it returns. I am wondering how many of you ran back to the computer to report that the new pads worked, only to discover later that it really didnt.
Who has had prolonged success, and by doing what?
Of all of you who claimed that they did something to fix the sqealy brakes, how many of you got it fixed long term? i have tried every combo of pads/rotors imagimable, and it makes the proble go away....for about a week, then it returns. I am wondering how many of you ran back to the computer to report that the new pads worked, only to discover later that it really didnt.
Who has had prolonged success, and by doing what?
I did the above a while back and still got the occasional squeal and shudder. I then replaced the rotors with Avid G3s. Since then I've done around 3000 km (1800mi) without any problems.
Fantastc
Pads?
Rotors?
which model XT's? the Shimano Deore XT M775?
Thanks
Great. what is your setup?
Pads?
Rotors?
which model XT's? the Shimano Deore XT M775?
Thanks
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42 Posts
avid 160 mm hsi rotors on my giant talon 29er. It drives me crazy. its under warrantee and LBS changed rotors and pads and it is still there. guess im changing the rotors 
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would love to know the setup aswell
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392 Posts
fast update to anyone who has not the time nor the attention span to read thru that Avid brake thread (it's like many hundred posts and counting) the tl;dr: version is:
This is a design issue with the 2010 model Elixir brakes (the first-generation Taperbore design). Avid has finally addressed this in the 2012+ lineup with a complete redesign of the lever and timing port configuration. It's actually pretty complicated and there's more than one issue that leads to the noise. Some of it is rub owing to sticky pistons, some of it is noise/vibration/shudder owing to rotor and frame/fork configuration. 90% of the time it's more of a bleed issue than a pad/rotor/caliper issue. There is also basically nothing you can do about the noise on certain fork / frame configurations.
The 2010/11 model Elixir brakes had some terrible issues with sticky pistons, noise and caliper rub. I'm an Elixir CR 2010 owner, and the only way I've silenced these and eliminated the rub is to frequently bleed them, use organic pads, keep the rotors clean, and frequently lube the pistons with silicon grease.
The good news is that if you maintain them, they work. I've gotten pretty handy with brake maintenance and when the Avids do work, they work extremely well; better than any other hydro system I've had experience with.
Hope this helps.
P.S. I personally do not care at all for Shimano brakes as I believe they are still using a mineral oil system which does not work reliably in extreme heat (fade), and tends to fail almost entirely (pack up) in sub 40° temperatures. If you don't ride in extreme temps, then you'll be fine using them.
This is a design issue with the 2010 model Elixir brakes (the first-generation Taperbore design). Avid has finally addressed this in the 2012+ lineup with a complete redesign of the lever and timing port configuration. It's actually pretty complicated and there's more than one issue that leads to the noise. Some of it is rub owing to sticky pistons, some of it is noise/vibration/shudder owing to rotor and frame/fork configuration. 90% of the time it's more of a bleed issue than a pad/rotor/caliper issue. There is also basically nothing you can do about the noise on certain fork / frame configurations.
The 2010/11 model Elixir brakes had some terrible issues with sticky pistons, noise and caliper rub. I'm an Elixir CR 2010 owner, and the only way I've silenced these and eliminated the rub is to frequently bleed them, use organic pads, keep the rotors clean, and frequently lube the pistons with silicon grease.
The good news is that if you maintain them, they work. I've gotten pretty handy with brake maintenance and when the Avids do work, they work extremely well; better than any other hydro system I've had experience with.
Hope this helps.
P.S. I personally do not care at all for Shimano brakes as I believe they are still using a mineral oil system which does not work reliably in extreme heat (fade), and tends to fail almost entirely (pack up) in sub 40° temperatures. If you don't ride in extreme temps, then you'll be fine using them.
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