Squeaky Disc

[Wilson10]

Whats the best thing to fix my brake noise? My rear squeaks like a cat on crack.

[Silver]

Use V-brakes!

I'll be here all week folks, try the chicken.

What kind of brakes are they?

[Wilson10]

they are brand new XT discs. Could they just need braking in?

[pixelninja]

Get some rubbing alcohol and clean the rotor. DO NOT touch it with your bare hands. The oil from you skin will make it squeal. Also use the alcohol to clean the brake pads and see if this helps.

[Repack]

If it is a lite-weight xc bike, it could be due to seat-stay flex. This has been an issue for Fuels, and I'm sure some other brands/models.

[binary visions]

Give them time to break in before you go screwing with them too much. Cleaning the rotor with alcohol is great, simple advise - give that a shot, then let them break in for several rides. If they're STILL squealing, then you should start trying the more drastic measures.

[JRogers]

Also check the alignment on the caliper and such and make sure all the bolts are down tight. This is more of an issue with Hayes and their mounting system and you probably already checked this stuff but I've found that a misaligned caliper, just like an improperly toed in pad, can cause noise.

[Wilson10]

Thanks for all the advice guys. My front is quiet, and my rear one is definetly fading. Just a "brake in" period looks like.

[al]

Have you tried facing the brake mount. This works a treat on painted frames and forks in my experiance.

[Wilson10]

What if my pads are uneven?? The rear ones are just barely off. Could this be the sorce of my problem?

[RITFreeRider]

Yes it could, the closer they are to the rotor the less it takes to make them squeak. I had the same problem with mine and it was just a matter of sitting there and centering the caliper on the rotor perfectly. Since then haven't had a problem.