Questions referring to the braking system in which pressure is applied to a track on the rim of the bike tire.

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43
votes
16answers
43k views

What is the practical advantage of disk brakes over rim brakes?

Disk brakes are becomming more popular on bikes now, and I was just wondering what the advantage is of this type of brake over the older rim brakes.
16
votes
2answers
123k views

Converting bike from rim brakes to disc brakes

I just bought a used 2009 Kona Dew and it comes with regular rim brakes. I'm perfectly happy with them so far, but have been wondering if disc brakes would come handy when it rains. What is involved ...
15
votes
7answers
54k views

Direct Pull (V-Brake) vs. Center Pull Cantilevers (pros and cons)

I am looking around for an old mountain bike to ride this winter (and this summer when it is wet). I was just browsing around and was curious what the difference was between Direct pull brakes: ...
11
votes
2answers
3k views

Why are there metal shavings in my brake pads?

I have several brake pads on my cantilever brakes that have several small metal shavings embedded in the pad. Is this normal? What should I do about it?
9
votes
3answers
4k views

Is it possible to mount a disk brake hub to a rim-brake rim?

Suppose I have a disk-compatible hub and frame, but want build a wheel based around a very specific touring rim, which is labelled as being for rim brakes. My understanding is that you cannot attach ...
9
votes
1answer
467 views

Best downhill braking method to avoid overheated rims?

I recently had one of my rims get really hot on a downhill. I had a problem with my front brake, and I had to use my rear brake only... I did short, hard stabs instead of lightly dragging it. I ...
8
votes
4answers
8k views

How do I get my brakes to stop squealing [duplicate]

I've tried sanding them down just a bit, cleaning the brake surface on the wheels, and this does stop them from squealing for a day or two, but it always comes back. I'm using Kool-stop pads if it ...
7
votes
3answers
3k views

Do aluminum rims provide better braking than steel ones when wet?

When I upgraded the brakes on my bicycle recently, the shop asked if I wanted to also switch from my (chromed) steel rims to aluminum rims, saying the aluminum rims would provide better braking power. ...
7
votes
2answers
178 views

Will any Shimano V brake fit any v brake lever and any v brake bike?

I need to replace the V brake on this bike: It uses Shimano EZ FIRE 40 brake levers, and has Shimano V brakes installed (Tektro TK837). Can I replace these V brakes with any other V brakes ...
7
votes
2answers
3k views

What is the purpose of the 'tire guide' screws on shimano brakes

On Shimano Ultegra and Dura-ace brake calipers there are round-head slot screws in the lower section of the brake pad holder. In the BR-6600 spare parts catalogues they are labeled as 'tire guide' (...
6
votes
2answers
2k views

Re-painting Rims

Over time, the paint on the rims of a wheel has slowly been eaten by a set of brake pads. How do I strip left over paint? What type of paint should be used? How can I ensure the new paintjob will ...
6
votes
2answers
41k views

How do I stop my rim brakes making making a squeaking/squealing sound?

I bought a Schwinn Frontier Sport few months ago and started riding happily. After a few weeks my front rim brakes started creaking. It's so annoying in public places. My rear brake doesn't produce ...
6
votes
1answer
98 views

How to assemble '70s-era center-pull brake

I've (supposedly) got a 1976 Motobecane Le Champion with what appears to be the original center-pull rim brakes, which unforunately are not in one piece and need to be re-assembled: As you can see ...
6
votes
1answer
4k views

Fixing damage to brake rim surface

somehow the alloy braking surface of my rear wheel's rim has got a series of quite shallow lacerations, less than a mil' deep bunched quite closely together (the effected area is no more than 1/8 of ...
5
votes
7answers
4k views

Why do my brakes squeak? Do I have an incorrect distance between brake pads and rims?

My brakes were working normally until I adjust them today. I thought the brake pads were too close to the rims so I increase the distance a bit. Now every time I brake, they make horrible squeaking ...
5
votes
5answers
4k views

Effectiveness of techniques to improve the performance of rim brakes

My bike does not perform badly at the moment, however browsing this site has lead me to wonder whether the performance of the brakes (the front one in particular) could be improved by various means ...
5
votes
1answer
156 views

How to prevent loose brake cables with a single pivot side-pull mechanism?

I recently bought a second hand bike and am now tweaking it to my liking. The bike has single pivot side-pull brakes, but it has a straight steering bar with regular brake levers (very similar, if not ...
5
votes
3answers
4k views

Can I run rim brakes on a disc rim?

I'm trying to buy a front wheel which will work with both disc and rim brakes so that I can use it on my cross bike (with rim brakes) and my mountain bike (with disc brakes) with a dynamo hub to power ...
5
votes
1answer
258 views

Are there v-brakes with long reach between the fork boss and the pad?

I'm planning to upgrade my rims from 305mm to 349mm. However, it seems that most v-brakes have a max distance of 1" from the fork boss to the center of the pad. Are there v-brakes that have a reach of ...
5
votes
1answer
1k views

What brand / model of brake is this modified U-brake?

I have been searching for a while, and I cannot find any information on my rear u-brake. It has served me well for many years (10+), and has a surprising amount of force. It's stronger than any ...
4
votes
3answers
3k views

Brake Cable Ends - Barrel and Pear Nipples

I can easily find images of these different nipples on Google, and as far as I can tell pear nipples are used on road bikes (in general) and barrel nipples are used on MTBs (in general). Barrel ...
4
votes
2answers
750 views

How to remove play in cantilever pivot point?

I have been working my way through issues with noisy front cantilever brakes. After running through many different ways to solve the issue including new pads (Kool Stop Dura2 Duel Compound), setting ...
4
votes
2answers
2k views

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

I think I've read every post here about V-brake squeal, as well as the popular ones on the Sheldon Brown site, the Park Tools guide and so forth - but I seem to have a brake squeal that just won't ...
4
votes
0answers
58 views

Cylinder volume of hydraulic brakes and levers

I've been asking around for a while now but even workshop pros couldn't answer this (by citing exact figures): How big are the brake cylinders of disk and rim brakes in terms of volume and surface ...
4
votes
1answer
530 views

How brake pad dust/residue affect braking and rim life?

You know the dust that's left on the rims' groove after a while, does it have any significance in braking or rim life? When washing the wheels I just realised that the dust must be coming from brake ...
3
votes
2answers
582 views

Why would my rear brake pads wear faster than front?

It has already been established that most of braking power comes from front brake. Now, several times that I have been replacing brake pads on my commuter cyclocross bike I have noticed that rear pads ...
3
votes
3answers
416 views

How long do brake pads last in storage?

I’ve discovered in my parts box some rim brake pads that have been there for several years. Aside from age, they are in fine shape (some are new). Can I put these on my bike, or is there hidden damage?...
3
votes
1answer
2k views

Brake cable housing too long?

I replaced the no-name brake calipers on my bike with Ultegras today. Am I correct in thinking the rear brake housing is too long and needs to be shortened? And if so, how do I determine how much to ...
3
votes
2answers
53 views

Suitable upright bar brake lever for old caliper brake

I want to replace my existing drop bar and levers with an upright bar and brake lever that will work with the old side pull weinmann synmetric 733 brakes, that are long reach at 65mm according to ...
2
votes
4answers
3k views

Can anyone suggest a way to mount my rack to prevent it impeding the rear brake?

I have a topeak rear rack the mounting of which is interfering with the operation of the rear brake. Unfortunately, my frame (a 2009 Scott Sportster P4) only has mounting lugs on the outside of the ...
2
votes
4answers
1k views

Can I install caliper or cantilever brakes on a frame and set of wheels designed for disc brakes?

I have a 2008 Giant XTC 01 that came with disc brakes. Those brakes have been difficult to service throughout my time with the bike, now the pads on the back are worn out the fluid lines on the front ...
2
votes
2answers
156 views

Cyclocross Rim Wearing with Rim Brakes and appropriate Solutions

For Reasons that are not to be discussed here i did choose a cyclocross frame without disc brakes mounts and i am going to train/compete with Canti Lever Brakes. Obviously, with all the mud and dirt ...
2
votes
1answer
928 views

V-brake seems asymmetrical

I'm not a big expert, so forgive me if I use some terms wrong (especially because I'm not a native English speaker). I have a MTB with V-brakes. I wanted to tune the rear brake because it looked ...
2
votes
1answer
259 views

Ceramic rims and KoolStop brake pads

I recently had a rim failure, my LBS is offering me a ceramic rim. Assuming I go for that; I currently have KoolStop salmon brake shoes. I see they make those in green specially for ceramics. Can I ...
2
votes
2answers
125 views

Jammed rear brakes

My rear brake is jamming to the point that only half seems to be moving. With worn blocks I got away with it, but now I have changed the pads I finally need to sort the problem. Could the brakes be ...
2
votes
3answers
1k views

Replacing cantilever brakes

Just bought a winter beater to ride through the winter. I knew it needed some love but the frame (Giant Yukon) fit well and it was a reasonable price. I just threw the bike up in my repair stand ...
1
vote
1answer
505 views

Trying to identify some very old Magura rim brakes

I'm looking to identify some very old rim brakes. I bought this bike used, and have now ridden it for enough miles that I strongly feel the need to replace at least the brake pads. No evidence that ...
1
vote
1answer
100 views

Make rim braking efficient

I have rim brakes on my bike both rear and front, but have been lately decreasing in efficiency, making weird noise when I brake hard and the braking distance has increased too. Neither my brakes nor ...
1
vote
1answer
87 views

one side of brake pad retention problem (i.e. attached to rim)

my front wheel brake pad (only one side) is still attached to the rim after I released brake lever. How do I fix this problem? I believe it is a cantilever brake.
1
vote
2answers
258 views

Rear Tire 'Wobble' After Tire Change

I have an old huffy 26 inch mountain bike. I changed the tire a couple days ago and now it has a pronounced wobble (side to side movement, not at the axle). Its like its misaligned somewhere but ...
1
vote
2answers
260 views

Tried to replace bicycle brake housing. Broken cable?

I was attempting to replace my stock front v brake to a better aftermarket v brake everything went ok until I tried to test it and the brake cable end, the one that connects to the brake lever, will ...
1
vote
1answer
94 views

Deepening the front fork dropout

I have an old 27" road bike in a long, lazy and cheapish process of restoration. I'd like to put 28" wheels on, which requires 4mm longer brake reach. The bicycle used to have fenders and the existing ...
1
vote
3answers
2k views

Thinking of upgrading my brakes to these, is there an issue with “mushy” braking?

I want to get these in combination with new levers for my bike, but under the description it says: "Use of these calipers with standard SLR enabled STI and brake levers results in a "mushy" brake ...
1
vote
1answer
23 views

What type of brake pads should I run on my Shimano RS80 C24 wheels?

I recently purchased a new (used) bike that has Shimano RS80 C24 wheels. The wheels say "carbon" on the side, though a couple of different sites indicate they feature a carbon and alloy laminate ...
1
vote
1answer
601 views

How do I fix U brakes?

I found an old bmx in my shed and I'm just doing it up a little as a good muck around bike. It's not very good, I don't even know the brand but i cut the front brake off, because it didn't even work ...
1
vote
1answer
256 views

Poor braking after rim change

I got a mid-80's Puch in great condition, and I replaced the original front wheel (steel) with a newer, aluminium one. But after the switch I have noticed that it doesn't brake as well as before. What ...
1
vote
2answers
319 views

Cannot raise V-brake blocks high enough to align with wheel rim

After adjusting my V-brake blocks to their highest setting on the lever, they still do not align with the wheel rim (they sit half on, half off). Is there any thing I can do about this, or is it an ...
0
votes
3answers
1k views

Are all side-pull road bicycle brakes compatible?

I'm new to road bikes, but have been building mountain bikes for many years. I purchased a cheap road bike (at BSO price level) which I am upgrading for fun. I'd like to upgrade the brakes to ...
0
votes
2answers
96 views

Rim seems to be shedding metal chunks

I have rim brakes on my mountain bike that's outfitted for urban duty. Two weeks ago, I noticed that my rear brakes were weaker and louder than normal. I found that, although my pads still indicated ...
0
votes
5answers
229 views

Persistent front wheel squealing: Replace the fork? Switch to disk?

I have a Cannondale touring bike from the early 2000s that I use as my daily commuter. With the stock cantilever brakes and original front wheel, I had a lot of front brake squealing. I did the ...