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19 votes
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How to install round brake pads

You got the wrong pads. While it's possible to mix and match some pads, this is usually not the case. When replacing pads, keep track of: Pad material and what your rotor is compatible of. Some ...
Klaster_1 Нет войне's user avatar
15 votes

I mistakenly put WD40 for my disc brakes and now pads not anchoring as well as before. Any solution?

Disc brake pads are very sensitive to contamination. You can clean the disc rotors with rubbing alcohol, but that's about it. Anything else will contaminate the pads. You may not be able to restore ...
Adam Rice's user avatar
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12 votes
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My front brakes contact the rim at different times instead of simultaneously. Is that normal or are they misaligned?

When I lightly apply the brakes only one part makes contact with the wheel There are two adjustment screws (Spring tension centering screw on the picture below) which are meant to center pads of V-...
Grigory Rechistov's user avatar
11 votes
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Can I use brake pads for carbon wheels with aluminum wheels?

In short yes you can, carbon brake pads will stop you but you shouldn't. Firstly the brake pads will not be as effective on the alu rims. Secondly the change between alu and carbon rims could be risky ...
Ben Poulter's user avatar
  • 1,116
11 votes

Are my pads worn down?

TL;DR: if the original photo shows the pad side of the holders, they were worn out some time ago. I stole the image below from the first Google image I found. This isn't a recommendation for this ...
Weiwen Ng's user avatar
  • 32.3k
11 votes
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Are this many washers necessary?

They are not simple washers. They have a concave and convex shape which allows you to tilt the brake pad up and down and left and right (“toe in”). You need one pair on the inside and one on the ...
Michael's user avatar
  • 27.8k
10 votes

Brake disc sometimes touching brake pad when not braking

Rotors can and do bend, subtly. Have you checked it's flat? One of mine sounds flat (or rather doesn't sound) cold, but has a high enough spot when hot to sing. Have you checked for play in your ...
Chris H's user avatar
  • 59.7k
9 votes

How to install round brake pads

Well, those are the wrong pads, there’s no way for them to work with your brakes. There are quite a few designs out there, but they need to match. Fortunately, it sounds like you contacted the ...
Swifty's user avatar
  • 12.8k
9 votes
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New disc-brake, rotor, pads; terrible braking performance

It sounds like air is trapped in the system and you should do a rebleed. Just start over, follow the manufacturer instructions carefully, take your time and be very careful to get ALL of the bubbles ...
alexantd's user avatar
  • 264
9 votes

Which brake system is this

So am I right to say that on the front I have a threaded stud and on the back a road brake? No As Andrew says, you have v-brakes on the front and the rear. Here's a picture from the front V-brake ...
David D's user avatar
  • 21.5k
9 votes

Anyone know what a replacement Disc pads might be for Tektro HD-R290?

Tektro has on their website a Brake pad finder tool. Entering your brake model number offers several compatible brake pad models. There are options for both resin/semi-metallic and metallic ...
Jeff's user avatar
  • 10.5k
8 votes

Why replace brake cartridge when grooves wear off

This is a good question. The short answer is that the design of modern rim brake pads is greedy and cynical. This is a Mathauser pad, and is representative of how a lot of old brake pads were, and ...
Nathan Knutson's user avatar
8 votes

Align bicycle brake pads

The brake arms - green line - are not in line. Something is off with the Alhonga brake. Either something is bent, something is not assembled correctly, or they are just made that way.
David D's user avatar
  • 21.5k
7 votes

Why replace brake cartridge when grooves wear off

I have checked the worn pads I recently replaced on my bike. The remaining of the grooves were filled with debris from the pad wear. Therefore I think the grooves serve the purpose of discharging the ...
L.Dutch's user avatar
  • 7,131
7 votes

How do I adjust V-brakes as the pads wear?

The rim brakes on my last bike had a barrel adjuster that did what you ask. My new bike has disk brakes and they self-adjust. The barrel adjuster here is the black cylinder on the right-side. The ...
Ross Millikan's user avatar
7 votes
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Sprayed Lubricant on Hydraulic Brakes, how to clean?

Rotors can always be cleaned; sometimes you have to use scotch brite or sandpaper, but usually brake cleaner alone will clean them fine. Make sure you clean the areas around the rotor, especially the ...
BetterSense's user avatar
  • 3,406
7 votes

I mistakenly put WD40 for my disc brakes and now pads not anchoring as well as before. Any solution?

Brakleen or another automotive brake cleaner will work. It is stronger than alcohol and should have no problem removing w40 and most other lubes.
ControlAltDelete's user avatar
7 votes
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Replacing disk brake pads with multi-tool only

Some models of Shimano calipers do use a pad retaining bolt so what you've pictured should be viable. I would make sure the bolt's diameter is small enough so it has a little play in when through the ...
Jeff's user avatar
  • 10.5k
7 votes
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What is the purpose of bedding in disc brake pads? And what if the procedure is not followed?

I think it is the same principle as for road cars and has the following reasons: Wearing off contamination (even though a responsible mechanic should clean the rotors/pads during installation) but ...
DoNuT's user avatar
  • 4,471
6 votes
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B01S brake pads for Deore A-M615 brakes?

The G01S pads are slightly wider, and slightly shorter, than the B01S which you replaced them with. If you compare backing plates carefully you will see the difference. I know this because I thought ...
Steve Martin's user avatar
6 votes

When to change disk brake pads?

Shimano and SRAM specify minumum pad thickness, which you can look up. Park Tool suggest at least 1mm, which you can measure with 3 business cards.
Argenti Apparatus's user avatar
6 votes
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Is it normal for brake pads to emit an odor?

Generally no - smell would be an indication of heat and vaporisation of something. In a brake it would be the pad turning to smoke with overheating. If your pad is that hot then your rims are about ...
Criggie's user avatar
  • 125k
6 votes

What and where is the weeping port on Shimano MTB brake levers?

From my understanding, that port is a pressure compensation port. When the oil level changes because of pad wear, temperature, or a leak, air will enter through that port (because the oil volume drop ...
MaplePanda's user avatar
  • 15.6k
6 votes

V-brake pads make contact but don't apply pressure to wheel

I find it useful to narrow down which part(s) of the braking system are having issues. It looks like you've got a partially-frayed cable with a strand sticking out just past the "noodle" ...
Armand's user avatar
  • 2,835
6 votes
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Lubricant spill on disc brake

Clean rotor with detergent, dry, clean with meths. Replace pads. Some people have methods for degreasing pads but i find none of them satisfactory.
Noise's user avatar
  • 14.1k
6 votes

Are these N04C pads worn out or not?

There's still plenty of life in them. Pads are worn when there's so little material that the pad spreading spring can start to touch the brake rotor.
juhist's user avatar
  • 19k
6 votes

Are my pads worn down?

I wanted to share another picture of how new vs. worn vs. catastrophically worn pads would look like. These ones are from my own collection. All pads are lying with the "working" surface up, ...
Grigory Rechistov's user avatar
6 votes

What tool do I need to adjust the brake cable here?

There is more than one way to adjust brake pad "tightness" (I'm assuming this means that the brake pads are too close to the rim). To answer the question. Pictured is the brake cable anchor ...
David D's user avatar
  • 21.5k
5 votes
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Plastic rims and brake pads

Kool Stop Composite Continental pads are designed for use with composite wheels. They are available in different colors to match the wheel. Many BMX riders complain of streaking on the brake surface. ...
mikes's user avatar
  • 18.7k
5 votes

V-brake caliper arm not retracting after hard braking

It looks like there's dirt in the hinge. When you brake hard, the arm reaches the dirty region and sticks there, and the spring can't force it back; when you brake more gently, it doesn't get into the ...
David Richerby's user avatar

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