Brakes with a disc near the hub and calipers that grip that disc.

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28
votes
5answers
78k views

How do I separate disc brake pads after accidentally pulling the front brake while the wheel is off?

The title says it all really. I've taken the front wheel off my mountain bike to get it in my car. When I get it out and try and put the front wheel back on the space between the brake pads isn't wide ...
42
votes
16answers
42k 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
118k 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 ...
11
votes
5answers
10k views

Why/How should I bed in disc brake pads?

Why should I bed in my disc brake pads and what's the best way to do it?
6
votes
2answers
6k views

Disc brake break-in?

Just got a bike with discs (BB7). The feel of the braking is so-so on the first ride (5km commute from LBS to home). I think the cable for the rear needs a little tightening. But even so, I don't ...
3
votes
1answer
690 views

Disc brake pad and rotor compatibility

The SM-RT53 rotor should be used together with resin pads. If it is used with metal pads, the pads will wear out very rapidly. from Shimano BR M-416 disc brake manual How do I know if a rotor is ...
76
votes
15answers
17k views

Why are disc brakes rare on road bikes?

Window shopping for road bikes, can't see many that have disc brakes, any reason for this?
18
votes
3answers
3k views

How do I prevent disk brakes from squeaking in the rain?

When I got my new bike with disk brakes, I thought that they would perform much better in the rain. While this is true, they still squeak quite loud in wet conditions, which is quite annoying. Is ...
11
votes
2answers
6k views

Hydraulic Disc Brakes Maintenance

I have Hayes Nine hydraulic disc brakes on my mountain bike. I have recently replaced the brake pads and after that it seems that the pads are almost touching the rotor. How can I adjust it? I have ...
9
votes
3answers
4k views

Disk brake squealing after bike shop changed my pads. Is it enough reason to ask them to re-service (for free)?

I recently took my bike to the shop, since it started making a weird metal on metal (not squeal, just hard brushing sound). After checking it out they saw that the back brake pads were really (REALLY) ...
8
votes
4answers
10k views

Disc brakes squeak on Trek mountain bike

I have a Trek 3900 mountain bike with disc brakes, and I just took it out of winter storage to start riding it for the season. Everything works well, except for one very annoying problem: when I stop ...
5
votes
3answers
12k views

How do I get my hydraulic disc brakes working well again

I just bought a new bike (my first brand new one ever) a few months ago and a while ago I decided to give it a wash and after that my front hydraulic brake hasn't been working as strong as it used too....
5
votes
1answer
998 views

Brand new disk brakes are barely stopping the bike

I just built a mountain bike with Avid BB7 brakes and Shimano V-brake levers. I used the exact same configuration on another bike, and it worked beautifully. But on this one, the brakes are just weak ...
5
votes
1answer
4k views

How do I get rid of the noise on my Hayes Stroker Trail brakes

I recently bought a new bike that came with Hayes Stroker Trail hydraulic brakes. From day one they were squeeky and not very grippy. I wrote it off to the burn in period that most disc brakes ...
3
votes
2answers
1k views

What are the negative consequences of not bedding in disc brakes?

It's common knowledge that disc brakes need to be bedded in. But I've never heard or found a description of what happens if you don't bed them in. Given the number of BSO's that now have disc brakes, ...
3
votes
3answers
3k views

How to deal with long pre-bled brake line?

I bought and installed a set of pre-bled hydraulic brakes onto my bike to replace the mechanical discs that came with it. My future plan is to buy a new bike, transfer the brakes to my wife's bike and ...
1
vote
1answer
664 views

Adapt V-brakes bicycle to disk brakes

I've been thinking in changing my v-brakes to disc brakes. Now that my rear v-break can't brake anymore I think that it is time change it. I've already seen this article. My frame is prepared for disc ...
33
votes
6answers
78k views

Hydraulic Vs. Mechanical disc brakes

What is the difference between hydraulic and mechanical disc brakes? Are hydraulics more reliable? Or more powerful? I'm curious since, hydraulics seem to get more attention and seem to be on ...
7
votes
4answers
21k views

Adjusting disk brakes after taking off the wheel

I recently took off the front wheel off of my mountain bike, and have been having considerably difficulty getting the front wheel on the right spot such that the wheel doesn't rub against the brake ...
13
votes
3answers
15k views

Is there difference in quality for disc brake rotors?

I am on the hunt for new rotors for my mechanical disc brakes, as the old are too twisted now and the brakes can't be adjusted without the disc rubbing the pads. What is the difference between the ...
17
votes
1answer
17k views

What is the difference between different types of disc brake pads

I've seen several different descriptors for disc brake pads: Metallic, Semi-Metallic, and Organic. What is the difference between these types of disc brake pads?
9
votes
4answers
9k views

Rack (+ Pannier) for a bike with disc brakes

I'd like to get a rack for my bike (Haibike Land). The problem is that the bottom screws are blocked by the disc brake: (If it is not obvious from the photo, the brake and it's mounting screws are ...
5
votes
2answers
7k views

Should rotors have no rub at all?

I just installed a new front disk brake and the rotor rubs a bit once per rotation. If I take the rotor off and place it on flat surface, it seems totally flat but once installed I can see/hear it ...
3
votes
4answers
5k views

Buying first hybrid bike; better to put $ into components or disc brakes?

I'm looking to replace my 2008 comfort cruiser with a fitness style hybrid. My budget allows for maxing out at $500 (on the new fitness hybrid bike itself). I ride rails-to-trails with the kids, ...
2
votes
2answers
5k views

Grinding sound on new disc brakes

I have a new bike, probably a month old, which has Hayes cx 5 disc brakes. I've noticed that the front brake pad is making a grinding sound when I brake at low to moderate speeds. What could be ...
16
votes
5answers
4k views

What type of brakes are best for mountain bike racing?

Disc brakes are more expensive than v-brakes, but in a heavy rain they will break down. V-Brakes are becoming harder to find, but they're much easier to maintain and don't break down as easily. What ...
11
votes
4answers
3k views

Separate hex keys vs. combined multi-tool for bike adjustments?

Are separate hex (Allen) keys better than a multi-tool for adjusting and maintaining a bike at home? Some of the separated sets also have ball-ends for the 4/5/6mm keys: Apart from Torx T25 ...
7
votes
4answers
2k views

Would hydraulic disc brakes be easier on my hands than mechanical disc brakes?

I ride MTB in a coastal town where all roads are dirt roads with lots of uphill/downhill. Nothing extreme, I just ride to relax and enjoy the landscape. I have mechanical disc brakes and after a 2-4 ...
7
votes
5answers
28k views

How often should disk brakes need bleeding?

The brake handles for my disk brakes became very loose four months after I bought the bike. The bike shop bled the brakes and put new oil in them, which sorted it. They're feeling a bit loose again (...
4
votes
3answers
4k views

Converting an existing cyclocross bike to disc brakes

I have a bike (Surly Crosscheck) that is used for commuting and cyclocross. As it's a bit older and disc brakes were not legal for 'cross until recently, it has cantilever brakes for optimal mud ...
3
votes
1answer
633 views

Is my disc brake caliper correctly mounted on the frame?

I have been in the process of upgrading my bike a bit. A friend of mine convinced me to upgrade my brakes from my stock Shimanos to some disc brakes. After having a look around and asking question, I ...
3
votes
1answer
355 views

How to practice jumping over cars with disc brakes and SPD shoes?

This question here raises a sub-question, to avoid accidents. I am looking for some safe ways to practice jumping over cars. I use SPD shoes and disc brakes because I have noticed that I can burst ...
2
votes
2answers
578 views

135mm rear end, 130mm rear wheel, Titanium frame

I'm looking at a Ti frame with a 135mm rear end, disc brake. And I have invested in wheels for my commuter, which is disc brake... but a 130 mm spacing. Is 5 mm enough of a concern -- impact to the ...
2
votes
2answers
3k views

Can I run a wheel with a 130mm hub on a mountain bike with 135mm spacing?

I'd like to build a wheelset that would work on my cross bike or my 29er, assuming I had disc brakes on the 29er and rim brakes on the cross bike, is there any way I could use a 130mm hub (that fits ...
1
vote
1answer
759 views

Do I need better “springs” on my disc brakes?

After 20 years commuting on old/cheap bikes, I finally evolved up to a nice solid touring rig with cable disc brakes (Avid BB5). I love the bike and the brakes. They're much easier to maintain, ...
1
vote
1answer
156 views

Moaning Disc Brakes?

My Disc brakes have been shuddering all day (been riding most the day). And when I say moan, I mean like I can feel the bike shudder up to my rear end. I tried the trick where you rub mud on them and ...