It’s not the disk brakes nor pads. The sound comes like from inside the frame, if that makes sense. What Is causing this orchestra and how can I cancel the show? Thank you very much.
Hi, my bike sounds like a trumpet. How can I fix it?
byu/Redditalan17 inbikewrench
by Redditalan17
15 Comments
Take out your pads, sand them down on some sand paper till they are nice fresh and even, then take off your rotor and clean it and try scuffing up the surface with sand paper,.
Then reinstall and re bed in your brakes.
If it does not work sometimes that’s just how brakes sound like most metalic pads make noise compared to other pad materials
Don’t feather your brakes so much? My fronts do this but I can put a bit more power on them and they shut up.
pretty sure it is the brakes, need to adjust/align them.
If you doubt that, then take out the brake pads and see if the noise persists, I’m pretty sure it’ll be gone
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Ok yeah then they only make noise at slow speeds alot of brakes do that, high speed and load and they don’t squeal
It’s 100% your brakes. Probably contaminated pads. As the other commenter said, you don’t hear it on your ride because you’re squeezing harder and damping the vibration pretty quickly.
But if you replace your pads and wipe your rotors down with brake cleaner or alcohol, I’m almost certain this will disappear.
It probably is the brakes as others have said.
I think it could also be a worn bearing in the bottom bracket.
My bike can make a similar noise simply by tilting it from side to side, with the wheels not even turning.
During a service they replaced the bottom bracket as the drive side bearings were crushed, which stopped the sound
I’m a little concerned that the sound is coming back, which might suggest the frame tolerances for the press fit BB and not correct
I’d say more like a violin than trumpet.
Change the pads for decent ones.
Wet rotors that are not aligned and touching the pads slightly without lever pull can do this. Check if they are aligned properly. The slightest contact is enough in some cases
Oil and grease are probably on your pads and rotors. Start with washing your bike. Maybe even chain oil. If that doesn’t help spray some automotive brake cleaner on it. When oiling your chain, be careful not to get oil on your brakes and rotors.
Most of my bikes do it, but only when pulling the brakes slightly and moving the bike by hand. No problem when actually riding it.
Don’t brake just a little for long, brake later and harder that way you won’t cook the pads this means don’t apply a little brakes the whole way down instead brake harder before the corner. Apart from that I wonder wether it makes the same noise while riding if not then this is normal and you cant really do anything about it. If they also squeel while riding you can sand and clean the pads and disc with beake cleaner and emory cloth if that doesn’t work you’re shit out of luck and will probably need to buy pads and maybe discs if it’s really bad.
Be careful, some animal might try to mate with you!
All my disc brakes did not make any noise when riding (wet days not included) but did squeal like yours when the brake was lightly applied. It’s because there is not enough force to firmly clamp down on the rotor. The brake pads are barely making contact with the rotor causing vibrations. You’re hearing the pitch of the vibration, multiplied by the hollow tubes on your bike. The bike puts off vibrations all the time when riding, but with a properly set up bike, you normally don’t hear any noises. Everything is working in tune together.
Ride down a hill and jam on the brakes. Repeat until the noise stops. You can also try cleaning the rotors with acetone.