3 Best Solutions for E-bike Disc Brakes Noise

3 Best Solutions for E-bike Disc Brakes Noise

Disc brakes have changed the way we ride mountain bikes with incredible stopping power in all weather conditions and precise modulation that makes decreasing speed down the mountain a little easier. And now disc brakes are offered on a variety of bikes, from gravel grinders to road race machines, bringing all those awesome disc brake benefits. But even the best set of brakes can suffer from annoying squeaks if you don't maintain your bike properly. 
Sqeeeekkk!!! While there could be tons of reasons your disc brakes are making loud, obnoxious noises, here are the most common culprits and how to fix it.(read this article to know about e-bike insurance)

What Sound, Noses and Sensations Indicate Brake Problems? 

Be attentive. Sounds, smells and sensations signal brake problems:
The sound of screeching, grinding, squealing, rubbing, and other eardrum-piercing noises indicates that your brake pads and shoes need to be inspected. If you feel this sensation often, your brake system is trying to tell you something. Putting off replacing your rotors too long could cause your rotors to become warped from metal-on-metal friction. Stop in as soon as possible if you are experiencing this unpleasant problem.

Why Do Disc Brakes Make Noises When Braking? 

Noise can be caused by disc brakes for several reasons. Wet brake discs are the most common cause of noise. You should not be concerned in this case. No matter whether hydraulic disc brakes or mechanical disc brakes, just about every disc brake will squeal in the rain or when the temperature drops. It is likely that one of the following three causes is responsible for brake squeals or other problems even when dry.
The disc brake squeaks or vibrates on the new (e-)bike. 
The disc brake grinds partially or permanently 
The disc brake squeals when braking and/or has poor braking performance.

 1.Contamination Alert 

Most likely, brake pad contamination is the cause of a loud, consistent noise when the brakes are applied. It's like a sponge that brake pads can absorb oils of every kind. Despite the limited possibility of reviving contaminated pads, the problem is easily avoidable.


Always remove the brake pads and place them in a safe place prior to performing any brake fluid maintenance.
Second, don't touch the rotor too much, as even the natural oils on your hands can cause contamination.
Lastly, since the rear disc is so close to the drivetrain, overspraying lubricants is easy, which leads to contamination of the pads or rotors. Make sure your rotor is not greased up like a rotisserie chicken by using a drip-on lube. The rotor can be cleaned thoroughly with isopropyl alcohol and a clean rag if it is contaminated.

2. Brake Rub 

Squeaking, squealing, or pinging sounds that occur while you ride are usually caused by caliper misalignment or a bent rotor that is rubbing your brake pads. Try spinning the wheel while lifting it off the ground to verify this is the problem. You have a brake rub problem if the wheel doesn't spin freely and comes to a stop.


 The first step is to ensure that the wheel is correctly seeded in the dropouts of the fork or chainstay. A QR skewer that does not thread into the frame could cause issues if you run this wheel. A wheel or rotor that is out of alignment may appear as a result of an improperly installed axle.

3.Water and Heat 

There are two elements that can cause your brakes to make too much noise: water and heat. You may hear your bike's brakes squeal when you ride through a puddle or a stream. There is no need to worry, because this is a temporary problem. The squealing noise will diminish as you use your brakes.
Your brakes could howl and you might not be able to solve the problem if you continue to brake for long periods (usually while riding downhill).


Overheating will discolor your rotor and you will have to replace it. In most cases, if you consistently have this problem, you need a bigger brake rotor. When you brake, larger rotors dissipate heat more efficiently and increase braking power, which equals less noise.


You should now be able to silence brake rub on your bike. As I have mentioned, brakes can be finicky, so if you have any special tips or tricks for getting rid of brake rub that I haven't covered, please let us know!

1 comment

  • Deb Hall

    I just bought a e bike and when putting breaks on they make a loud gridding noise are they dirty what do I do

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