8 votes

What contributes to disk brake noise when wet, and how could I minimize it?

I've been obsessing over this issue for years now. I'm an 85kg rider who rides in all conditions in Scotland, so my brakes are frequently cold and wet. I can confirm that specifically wet weather ...
Ian Edward's user avatar
6 votes

What contributes to disk brake noise when wet, and how could I minimize it?

To handle the last part of your question first, simply because I don't believe there is a solid answer, my opinion is that there is little difference in the potential for brake squeal between a 6 bolt ...
Jeff's user avatar
  • 10.2k
5 votes
Accepted

Magura brake pad change: friction noise?

From where you're at now, this is what I would do: Take out the wheel and pads. Intentionally overextend the pistons with the lever. Clean them and the whole caliper thoroughly with alcohol. Swab ...
Nathan Knutson's user avatar
5 votes

Front disk brake squealing

Presuming you were thorough with your cleaning and the rotor was left with no residue of any kind (I achieve this on rotors I suspect of being oil or greased contaminated by either using brake cleaner ...
Nathan Knutson's user avatar
4 votes

What causes the different types of tire skidding noises?

The screeching that you describe is unlikely to be caused by the tyre skidding. It's more likely to be the contact between the brake pad and the braking surface causing the sound. On an alloy-...
Carbon side up's user avatar
4 votes

Mechanical disc brake scratching noise

I have found before that if you decide to do the quick release up tighter than usual it can tighten up the bearings a little too much and you might hear a fairly regular noise as the wheel rotates. I'...
user34810's user avatar
  • 601
4 votes

diamondback cobra 24 rear brakes squeal horribly what can I do to at least tone it down

Often this is the result of poor "toe-in." As the wheel turns while braking, the brake pads' mounting posts flex slightly and the pads buck against the rim and bounce back, causing the ...
Adam Rice's user avatar
  • 30k
4 votes
Accepted

Strange noises when using brakes

A supposition: that may only be applicable for Mavic wheels with 'QRM SL' bearings. The bearings preload for these wheels is done when tightening the wheel, with the QR lever or thru-axle. If the ...
Rеnаud's user avatar
  • 20k
4 votes

Why are my disk brakes making a squealing noise?

I am a professional Bike Mechanic. Your rotors should be cleaned with isopropyl alcohol (or automotive brake cleaner if you must) and nothing else. Any sort of lubrication on the rotors including WD40 ...
GOB's user avatar
  • 81
3 votes

Why are my disk brakes making a squealing noise?

You might try a different brake pad compound. I had a similar experience using organic pads. Switching to a semi-metallic compound pad eliminated the slow speed grabbing and most of the noise. See ...
Ted Hohl's user avatar
  • 6,142
3 votes

What contributes to disk brake noise when wet, and how could I minimize it?

I found a few things that slightly mitigate brake noise on wet rides: washing off sand and grit with a powerful squirt of water from a bidon (I did this when transitioning from gravel to tarmac) ...
gschenk's user avatar
  • 9,660
3 votes
Accepted

Unfixable brake disk rubbing

Noise after hard braking is normal. The rotor heats up and warps slightly. When you got rubbing after reinserting the wheel, that shows you didn't align the wheel correctly. You need to be applying as ...
MaplePanda's user avatar
  • 15.5k
3 votes
Accepted

Can't figure out the origin of loud screeching noise

You are describing brake squeal caused by the brake pads resonating on the rim during braking. Wet rims often squeal worse than dry ones and the flour use reduced the friction somewhat which reduced ...
Jeff's user avatar
  • 10.2k
3 votes

What causes the different types of tire skidding noises?

I've heard a wide variety of tire skidding noises over the years. From almost no noise at all to high pitched screeching as you describe. There are a variety of factors that come into play when ...
David D's user avatar
  • 21.3k
3 votes

Rim-Brake pads creaking in still state

What you are hearing in my opinion is the squeak of the rubber pads gripping the rim. Notice that the pads do not close into and on the rim from a perfectly lateral, 90° approach. The path of the ...
Jeff's user avatar
  • 10.2k
2 votes

Mechanical disc brake scratching noise

If the sound is occurring once per revolution it must be related to the disc being at least slightly out of true. With the bike off the ground rotate the wheel and look at the disc in the caliper. ...
Argenti Apparatus's user avatar
2 votes

Why are my disk brakes rubbing when wet and not dry?

I have notice the same phenomenon. If you keep washing with clean water the rubbing noise should go away. My best guess is that the water coming off the tires and falling into the brakes brings a ...
Rider_X's user avatar
  • 30.6k
2 votes

Have replaced v-brakes and they still squeak. What to do?

Try wiggling the brake caliper arms from front to back quickly by hand (not in-out like squeezing the brake but inline with the bike frame.) if they wiggle with the tiniest 'thunking' then it sounds ...
alain's user avatar
  • 21
2 votes

Front disk brake squealing

You haven't mentioned checking the caliper alignment. If the pads and disc aren't exactly parallel the braking can feel weak, presumably as the disc is forced sideways by the pads. I've found that it ...
Askell's user avatar
  • 21
2 votes

Rim-Brake pads creaking in still state

I think it's either the stack of washers on the pad squirming together under pressure, or the pad pushing on the rim surface (assuming your assertion that nothing is touching the tyre). It looks like ...
Swifty's user avatar
  • 12.8k
2 votes

Why are my disk brakes making a squealing noise?

After about two days if riding, the noise seems to have settled with the new brake pads. Maybe they needed to be broken in. I will post more updates.
mahela007's user avatar
  • 171
2 votes

Why are my disk brakes making a squealing noise?

It can also happen if the disks or pads are not totally free of degreaser (e.g. DW40). Not sure you've considered it already but it is worth mentioning it.
julien-ottawa's user avatar
2 votes
Accepted

Why is my hydraulic front disc brake clicking?

The cause is the disc brake pad spreading spring contacting the brake rotor. Apparently the slight squeeze of the brake lever changes the geometry of the mechanism so that the spring is contacting the ...
juhist's user avatar
  • 18.7k
2 votes

Roller Brake squeeking, even after body replacement

Only a small pool of potential causes remains since you've completely replaced the brake. One reason bike brakes squeal sometimes is something about the mechanical condition of the system is allowing ...
Nathan Knutson's user avatar
1 vote

Why are my disk brakes making a squealing noise?

My brakes started to produce this noise when the pads were simply worn. My commuting at the time included a long hill that required brakes on descent, so they lasted for less than a year. The noise ...
nightrider's user avatar
  • 7,731
1 vote

V-Brakes squeal very loud when braking

I'm working around the assumption that you are on a aluminium rim. My opinion is that as long as there's no loss in braking power / consistency, then your braking componentry should still be fine. ...
Yuxuan's user avatar
  • 256
1 vote

Front disc brake rattling noise

That noise is a concern. It certainly sounds like something is hitting the rotor, but if the rotor is out of true you should get a periodic 'ching-ching-ching' sound. The noise is more random which ...
Argenti Apparatus's user avatar
1 vote

Front disc brake rattling noise

The rotor might not be perfectly true. Although the shop should fix it as it's a new bike, do be aware that big MTB rotors get out of true really easily and at some point you just need to live with it....
MaplePanda's user avatar
  • 15.5k
1 vote

Unidentified clicking sound coming from front wheel area when performing an endo

Could it be the spokes rubbing over eachother? You can check the tension of the spokes by squeezing parallel pairs together. My fixie bike makes a clicking noise sometimes when the wheel needs ...
chris's user avatar
  • 11
1 vote

Mechanical disc brake scratching noise

I've had a similar experience where I thought it was something to do with my rotor, or dirt in my system. Took it all apart for cleaning & adjusted many times to try and sort it with no luck. ...
Hursey's user avatar
  • 705

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