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

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4
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3answers
159 views

How to buy replacement disc brakes

In looking at replacing my disc brake rotors, and looking online I see there are different sizes available (between 180 and 203 mm). My question is, what dimension do I measure on my existing rotor? ...
3
votes
2answers
290 views

What to do when there's no more adjustment room on disc brakes

I just built up a new frame and discovered that, due to slightly different geometry the rear disc caliper can't be adjusted so that it doesn't rub. Basically I've got them all the way over to one side ...
3
votes
2answers
2k views

Buying brake levers, how do I find the correct ones for my bike?

I took a hard spill the other day on my mountain bike and snapped my left hand brake lever in to pieces. The ones that snapped are stock alloy rubbish that came with a Specialized Hardrock 2010 Disc ...
3
votes
2answers
6k views

Disc brakes make noise

My disc-brakes on my mountain bike sing/scream when I brake. I have tried to clean them, but it didn't work. Should I replace the disks or the brake pads? Is there a better (cheaper) way to fix this.
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3answers
509 views

Rear Rack for Cannondale Trail 6 with Disc brakes

I was having a real trouble finding a suitable rear rack for my bike, a Cannondale Trail 6, with disc brakes. My usual bike use is to the office (bag containing laptop, lunch, rain jacket, etc. with ...
1
vote
1answer
220 views

Can I swap Semi-Metallic brake pads for Sintered Metal Brake Pads?

I'm running disc brakes on my cyclocross bike with semi-metallic brake pads. I find that I'm constantly having to keep my rotors cleaned off to ensure optimal performance. I'm used to my mountain ...
9
votes
3answers
2k 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 ...
0
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0answers
54 views

Disc brakes vibrating, “singing” under the rain [duplicate]

I recently replaced my hubs, and not-so-recently the front brake rotor. In dry conditions, everything works fine, brakes well and makes almost no noise. In rainy conditions, however, the front disk ...
8
votes
2answers
1k views

When Should I replace the rotors on disk brakes?

I've probably done about 20k on the rotors I bought the bike with. They still work fine, but are visibly worn and slightly grooved from me not replacing the pads soon enough a few times. How do I ...
3
votes
2answers
2k views

Will any Avid brake bleed kit work with my Promax brakes?

I need to replenish the fluid in my front brake on my Whyte Portobello (Promax Hornet disk brake) after all of the fluid leaked out through my own mistake. I'm looking at kits like this on eBay, ...
2
votes
1answer
340 views

Uneven Disc Brake performance

I'm using Hayes CX-5 Mechanical Disc brakes with Avid The G2 CleanSweep Rotors on my cross bike. I believe the Pads that come stock with Hayes CX-5 brakes are semi-metallic. I'm experiening uneven ...
6
votes
3answers
3k views

What's the deal with compressionless brake cable housing?

Ok folks, I'm confused and in need of advice. On my commuter (touring) bike, I just upgraded my BB5's to BB7's. In the process, decided/realized that I also need to replace my cables and housing ...
6
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2answers
3k 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 ...
2
votes
2answers
800 views

What is the minimum tire width for a 18 mm disc rim?

I have a Croix de Fer cross bike that I purchased for touring with luggage; for commuting to work, lighter touring and some mild offroad riding. While it is nowhere stated officially, I can see on ...
6
votes
1answer
9k 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?
2
votes
2answers
3k 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 ...
2
votes
4answers
1k views

Disk brake brakes work poorly after annual maintainance

The disk brakes practically don't brake anymore. If I pull the brake lever as hard as I can, the wheel still turns if I push the bike forward. Is this normal? Do they need a "brake in" period? ...
3
votes
1answer
462 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 ...
5
votes
4answers
1k views

Disc brake rotor size and forks strength

I have been told that every fork has a maximum rotor size characteristic. For example, for my $75 Suntour this is listed as 185mm. The explaination that I have been given for this limitation is that ...
1
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3answers
411 views

Mechanical-hydraulic hybrid brakes

I've heard about Mechanical-hydraulic hybrid brakes but didn't find any examples. Are they exist? If yes, are they comparable with hydraulic?
3
votes
1answer
1k views

What is the difference between “front” and “rear” disc brake?

When I browse on-line bike shops disc brakes are listed as "front" or "rear" e.g. here. I have never noticed any difference between front and rear brakes - disc or V-brake, hydraulic or mechanic. ...
10
votes
3answers
6k 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 ...
9
votes
3answers
6k views

What is the benefit of a larger disc rotor?

What real benefit does having a larger rotor give to braking performance? Additionally is my assumption correct that you callipers don't actually change in size, just the rotor and the adapter need ...
6
votes
4answers
333 views

Concerns with different brake types for the front and the rear wheel

I'm considering adding a disc fork to my surly cross check and using some avid bb7 road brakes for the front. I've got tektro road levers on drop bars (outfitted with retroshift shifters) I've got ...
4
votes
1answer
846 views

What is lever throw and cable slack?

In a guide for adjusting Avid BB7 mechanical road disc brakes, it said: Only use the barrel adjuster at the brake lever to adjust for cable slack. For lever throw, use the outboard adjustment ...
2
votes
1answer
371 views

Can I get a wheel dished without the bike?

I broke a spoke on my rear wheel, and ended up messing with it a bit too much - I may need to get it re-dished. If it's a common market model bike, can I simply take the wheel into my bike shop, ...
8
votes
4answers
2k 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 ...
13
votes
8answers
8k views

Is having your hands “on the hoods” of drop handlebars safe for braking?

I've never had a bike with drop handlebars, but may get one for commuting in busy London (likely a single-speed with mechanical disc brakes). This would mean riding with my hands mostly on the hoods, ...
5
votes
1answer
686 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 ...
3
votes
5answers
3k views

A bike for city commute - disc brakes, bar-end shifters, tires

I'm planning on buying a bike for city commute. My commute to work is approximately 12km (7.5 miles) one way. I live in Vancouver which means: I'll be riding in rainy weather frequently. I'll be ...
12
votes
3answers
9k views

Why are single-speed bikes with disc brakes hard to find?

I've been looking around for bikes (decent frame & components), and find that hybrids do have disc brakes (hydraulic), but are never single-speed. While single-speed bikes typically have ...
3
votes
2answers
4k views

How do I align my front brake disk with the caliper?

I have manual Avid disc brakes. I took my front wheel off like I've done hundreds of times. When I put it back on the wheel is aligned properly with my fork, but the disc presses against one of the ...
3
votes
1answer
478 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 ...
4
votes
3answers
19k views

Can you put disc brakes on road forks originally intended for calipers?

I've decided I want a disc brake, at least on the front, which seems a good enough reason to go bike shopping, but am I overlooking the possibility of fitting a cable pull disc brake to my current ...
6
votes
3answers
7k views

Rear hydraulic disc sticking

My 2012 Model Scott Sub 10 has recently been experiencing issues with the rear disc sticking on my daily commute and getting so bad that I have to stop, wait for it to cool and then push the disc a ...
2
votes
2answers
2k 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 ...
6
votes
2answers
3k views

How to prevent my disc brakes from locking/sticking due to debris?

Context: I have a commuter/crossover bike with disc brakes, and a daily commute of ~20km. I upgraded to a bike with disc brakes after standard caliper brakes kept losing their stick and requiring pad ...
3
votes
1answer
2k views

How do to determine if an adapter is needed for disc brakes and rotors?

I have an old older (not too old) bike that already has disc brakes, but I would like to replace them with a totally new set and new rotors. How can I determine if a given replacement (caliper and ...
2
votes
2answers
2k 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 ...
2
votes
1answer
513 views

Tubus Rack Compatibility on a 29er With Discs

I have a Trek 520 with a Tubus Tara rack on the front and a Tubus Cargo (not the newer Evo model) rack on the rear. I'm thinking about trading in the 520 for a 29er with disc brakes, probably a Salsa ...
0
votes
1answer
206 views

How to loosen cable tension in disc brakes

I have a Victory VEGASJACKPOT bike with cable disk brakes, and I need to loosen my cable tension. How do you do this? I've already done it all the way on the screw/knob by the brake lever. Thanks!
19
votes
4answers
37k 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 ...
2
votes
1answer
266 views

Fixed (inside) front disk brake adjustment

I got a new bike for Christmas (12-25-12) and it is a VICTORY VEGASJACKPOT w/medium-travel front fork and full suspension. The front disc brake rubs against the inside pad (the one on the fork side of ...
7
votes
4answers
1k 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 ...
5
votes
6answers
13k 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 ...
3
votes
3answers
3k views

could I mount a different manufacturer brand rotor to use with my brakes?

I've a tektro draco hydraulic brakes on my mtb and I would like to know if it is possible to mount a different brand rotor to use with my brakes?
1
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1answer
554 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, ...
5
votes
3answers
2k 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 ...
3
votes
2answers
1k views

Is a pad spacer needed when installing disc brake pads?

I need to replace my disc brake pads on my Shimano XT brakes. This seems like a pretty straight forward procedure, and I have all the tools needed except for the pad spacer. Do I need this to install ...
4
votes
3answers
283 views

Disc brake freezing at end of ride

At the end of my last ride the back brake started rubbing hard on the disc. It almost feels like the brake cable had popped out of the lever. The bike is relatively new to me, and I am not very ...