Furbz Posted June 2, 2016 Share Anyone have a solution to this? i have XT disc brakes.the front set squeals like a pig. i have removed the brake pads and given them a light bit of brushing to clear any obvious embedded bits.(i didn't see any)have also cleaned and checked the surface of my disc. (again looks good to me) bought the bike new. have done around 1000km on the bike thus far. still squealing like no-ones business. maybe i should put oil on them!! :stupid: thanks in advance! Link to comment Share on other sites More sharing options...
DaBombBikes Posted June 2, 2016 Share On your next ride spray a little of your juice into the caliper Link to comment Share on other sites More sharing options...
HowardSteele Posted June 2, 2016 Share Squeaks...rattles and squeals...I hate them allTighten up the bolts attaching the disk to the hub and if that doesn't work Swap the pads around put the front pads in the rear see if it makes any difference. Link to comment Share on other sites More sharing options...
Abdul Posted June 2, 2016 Share I had the same problem; also a Shimano front brake and not many km's done. The squealing was so bad that my brakes sounded like a siren. I did the usual like clean the rotors and clean the pads with alcohol and sand them but it didn't work. Eventually I discovered the caliper had a tiny crack in it causing a minor oil leak. I replaced the caliper and the problem was solved. To sum it up, the squealing is usually caused by contaminated pads but the contamination is often caused by a leak. Link to comment Share on other sites More sharing options...
Spoke101 Posted June 2, 2016 Share There is plenty info on this in previous threads. Do a search. In short, get some brake cleaner (ethanol) take out pads and rotor, spray them liberally and then set them on fire. Then lightly sand both pads and rotor. Then replace pads and rotor (do not touch either braking surfaces with your fingers), go find a long hill, ride to the top then ride down get to about 40kph then pull the brake till about 10kph and repeat about 5 times the brake power should increase after each use. Link to comment Share on other sites More sharing options...
Flowspeed Posted June 2, 2016 Share Remove the pads, apply a bit of copper slip to the back (on the metal casing), and put them back. Worked for me Link to comment Share on other sites More sharing options...
Halfdoesyn Posted June 2, 2016 Share Your front disc squeal seems to be working fine. Mine's been broken since forever. Link to comment Share on other sites More sharing options...
Bobbo_SA Posted June 2, 2016 Share Did you seat / break them in correctly? Link to comment Share on other sites More sharing options...
sakkiebomskok Posted June 2, 2016 Share Put the pads metal side down on the stove till they smoke. Put the rotor on a tile poor spirits on it it and set it alight. Works like new Link to comment Share on other sites More sharing options...
BDF Posted June 2, 2016 Share What I did that worked (much in the various replies above) 1.Check that calliper is not loose or damaged2. Take pads out, wash them with Sunlight dish liquid by putting some on them, wetting slightly and rubbing the braking surface vigorously until very clean. Rinse and repeat, rinse again3. Wipe rotor with dry micro-fibre cloth4. Then clean rotor with surgical spirits with a micro-fibre cloth5. Wipe again with a dry micro-fibre cloth.6. Replace pads7. Ride and hope it all works. In my case, it did! Done on Shimano XT Link to comment Share on other sites More sharing options...
Re::Cycling Posted June 2, 2016 Share You could also switch to resin pads, assuming you're running metal at the moment. ResinUps: is quieter, stops sharper, less rotor wearDowns: doesn't last as long (a single muddy ride can finish them)MetalUps: Lasts longerDowns: Can be noisy, especially when wet, slightly less stopping power, more rotor wear Link to comment Share on other sites More sharing options...
Raydek Posted June 2, 2016 Share I can't seem to find my post from some time ago (not even in archives), but it is something I did that sorted the problem, also I have heard the same thing has worked with others. Basically make sure that the pads are properly lined up with the main section of the disc, so that they are not running over the fins that lead to the bolt section. Rather have them over the outside of the disc slightly. You can see this by wear on the fins, I lifted mine a mere 1mm with spacers under the caliper bolt section, never had noise after that (except first few brake pulls in the wet conditions). There was a pic I drew explaining this all if you want to try and find it in archives, but ja, I couldn't. Hope this helps. Link to comment Share on other sites More sharing options...
Furbz Posted June 2, 2016 Share I can't seem to find my post from some time ago (not even in archives), but it is something I did that sorted the problem, also I have heard the same thing has worked with others. Basically make sure that the pads are properly lined up with the main section of the disc, so that they are not running over the fins that lead to the bolt section. Rather have them over the outside of the disc slightly. You can see this by wear on the fins, I lifted mine a mere 1mm with spacers under the caliper bolt section, never had noise after that (except first few brake pulls in the wet conditions). There was a pic I drew explaining this all if you want to try and find it in archives, but ja, I couldn't. Hope this helps. i get what you mean. i'll check when i get home today. will also try a few of the methods posted here and revert back Link to comment Share on other sites More sharing options...
Jewbacca Posted June 2, 2016 Share Nobody has mentioned Glazed pads and a glazed rotor... If you have a trigger friendly front brake finger the pads and the rotor often become glazed, smooth as though it has a seal on it. Often rubbing the pads and the rotor with a super fine glass sand paper works a treat as well. And remember to stop pulling your brakes all the time, use them like ABS brakes and control your speed. The contamination as mentioned often happens when guys cook their brakes from pulling them gently for 10 minutes down a long descent. Good luck though. Having annoying noises on your bike really sucks. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.