They work fine, but when when the bike gets to a full stop there is a loud screeching noise. Why is this? I'm using the right brakepads so maybe i need to change the disc???
by Qwertus03
They work fine, but when when the bike gets to a full stop there is a loud screeching noise. Why is this? I'm using the right brakepads so maybe i need to change the disc???
by Qwertus03
16 Comments
Just turn down the volume.. /jk
Are they hydraulic? There was a leak probably.
Watching this on speakers in office was a bad idea…
Anyway are these new pads? If so they should be normal after some braking sessions.
If they are contaminated give them a wipe with IPA and sand them down a bit.
[https://www.youtube.com/watch?v=qQ_YIXhTGU0](https://www.youtube.com/watch?v=qQ_YIXhTGU0)
contaminated disc and pads
it’s not the disc, maybe it’s some junk on the disc (like a thin layer of some WD-40) try do dry it really good, and if not then maybe the pads got some gunk on them as well
Need new pads. Their contaminated
My bike did the same. I fixed it by cleaning and sanding the pads and also cleaning the rotors. Then the sound came back and I had to do this again and when I examined the rear brake (The one who made noise) I discovered that one of the caliper bolts had been overtightened by the previous owner. The result was that the caliper was kept in place by only one bolt and the other seemed to be tight but it wasn’t, so when applying pressure when braking it vibrated. I used an helicoil and replaced the bolt and the problem went away
Seems like water got on the pads.
Oh yes, the song of our people.
As others suggest, something isn’t tight or contamination, or bad quality pads.
Absolutely sounds contaminated. Isopropyl on the pads & a light sanding of the rotor will fix it if it’s not too bad.
Jesus… I jump scared bro
Just paper sand your brake pads and clean your rotors and you should be fine
Contamination from some sort of oily substances. New pads and rotors is the best fix. New pads and Sanding down the rotors is next best. And cleaning and Sanding the existing pads and rotors might work or might not.
Could just be dirt and moisture. If it keeps being like this the pads are contaminated.
Those are great for group rides! No need to yell “Slowing/Stopping”
You’re getting a lot of suggestions that require some tools, parts and/or effort. Before switching pads etc I would just try riding down a long and steep slope at 15 kmh/10 mph while braking and also pedaling hard.
My rear brake started screaming like yours probably because I barley used it. Then I basically stopped using it at all because of the noise, so it got even worse. I tried the above method, got some heat into the rotor and pads and it has been perfect since.
I would especially consider trying this if this is something that started happening for seemingly o reason.
What does it mean if when you brake harder it squeels a bit but there’s also some sort of oscillation feeling/sound. Rotor disc has a bow in it? When I got the new pad they measured it and said it didn’t need to be replaced.