Rear Brake noise and vibration

[Hotchkiss]

I got Avid Codes with 180mm rotors. My rear brake on down hills sounds like chewbacca have sex with a moose. And the Vibrations tickle my boys.

Has anyone had this problem?

I'd like to do what I can before I put new pads on it.


Thanks

 

[dirtyjeff]

try switching to organic pads? wiping your rotor with alcohol? is the top of the rotor hitting the caliper?

BTW, sounds like you watch some wierd porn, but if your boys are tickled and you still can stop, what's the prob? :beer:

 

[jbh65]

do you ride a stumpjumper? I have the same problem with my stumpy. Too much flex in the back of the bike.

 

[afgenkuong]

Try tightening up the IS Mounts and changing out the pads to Organic pads.

 

[Hotchkiss]

I have a Rockhopper SS. I just noticed that the rotor is hitting the caliper.

Organic pads is what i keep hearing from everyone. Looks like that's my course of action.

 

[Drop D]

I got Avid Codes with 180mm rotors. My rear brake on down hills sounds like chewbacca have sex with a moose. And the Vibrations tickle my boys.

Has anyone had this problem?

I'd like to do what I can before I put new pads on it.


Thanks

YIPEE! I'm not alone :lol: I have ORGANIC pads... I tried the metallic ones too... both makes loud noise and both vibrates lol It helped me a lot on my speed....
the noise is so embarrassing that I'll just use my brake when I really need to (like before I hit a turn or I see a hiker)

 

[metalmtbr]

I'm starting to think this is specific to Avid brakes based on my experience and what I've read. I have Avid Juicy 3's and they squeaked just 2 days after I got my new bike. I replaced the pads with Organic pads (for about $20) and the squeaking is much less than before so there's a little improvement. If I pump my brakes then it's not as bad.

 

[krankensteine]

Not just a problem with avid's. I have Formula k24s and on one of my frames I had the problem you speak of. I worked with Formula and tried many different types of pads and different styles and sizes of rotors. I would get temporary relief but the noise would always come back. Has something to do with how stiff the rear of your frame is. I have had the same combo of brakes on many other bikes with out a problem. Good luck I know your pain.

You might try some thin teflon washers between your brake tabs and the adapters, helps a little.

 

[Winger]

I got Avid Codes with 180mm rotors. My rear brake on down hills sounds like chewbacca have sex with a moose. And the Vibrations tickle my boys.

Quote of the year!


I have juicy 5's and this is exactly what it sounds like. I have organic pads and wipe the rotor with alcohol before every ride. Solves the problem for about 1/2 the ride before the moose-wookie sex is back. Sitting on the seat sometimes helps.

I can't think of anything else to try.

 

[Soul_Control]

I can't think of anything else to try.

Shimano Brakes :beer:

 

[Drakethomas]

I guarantee I wil fix any squeak, or its FREE.

 

[Garrett]

Moose-wookie sex. lol. I'm guessing its you who we ran into near the end of Coyote yesterday . That description is ridiculously accurate btw.

 

[DISCO]

Curious if the adaptors are to blame?

Not just a problem with avid's. I have Formula k24s and on one of my frames I had the problem you speak of. I worked with Formula and tried many different types of pads and different styles and sizes of rotors. I would get temporary relief but the noise would always come back. Has something to do with how stiff the rear of your frame is. I have had the same combo of brakes on many other bikes with out a problem. Good luck I know your pain.

You might try some thin teflon washers between your brake tabs and the adapters, helps a little.

Pasted from another thread but what if?

While on the topic of how poorly Avid's function, what are the chances that the spindly I.S. adapters (compared to say Shimano's blocky square one's) could be flexing under braking torque enough to go out of alignment. Or are there just as many issues with post mounts/adapters?

 

[blender]

my buddy has the EXACT same issue with a brand new set of Codes
bolted them onto his Stinky, and they've been shuddering and squealing from day one.
Tried a bunch of things, nothing seems to help.

He's selling them off, and replacing with either Saints or Formulas.

 

[metalmtbr]

Shimano Brakes :beer:

You know, on my other bike I had Shimano M415's and they never squeaked or did any wookie/moose mating sounds and although mechanical/disc brakes, they too, had great stopping power.

 

[b3rnard]

Pasted from another thread but what if?

While on the topic of how poorly Avid's function, what are the chances that the spindly I.S. adapters (compared to say Shimano's blocky square one's) could be flexing under braking torque enough to go out of alignment. Or are there just as many issues with post mounts/adapters?

Very good point here, and it's actually fact. I have a set of Juicy 7s that started to make a loud vibrating sound under moderate to heavy braking. At first, I thought something was wrong with the rear triangle since it's brand-new frame I am not familiar with.

But it turns out, that the Ti bolts on the IS and CPS mounts are flexing when the calipers grab the rotors.

Yes Titanium is lighter and stronger (in some cases) than the steel bolts, but it does flex quite a bit.

Any how, I am tired of AVID brakes... It's time to invest on something else.

 

[speckledtrout]

I immediately took the Juicy's off my new bike and replaced them with some new XT brakes. Best brakes for the money and quiet as a church mouse.