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

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0
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0answers
49 views

How do I increase braking power and “touchiness” of Sram Guide RS Brakes?

I've got some Sram Guide RS disk brakes and they're very weak and not touchy at all. I prefer touchy brakes. I know the Guide RSC has the tool free contact adjustment to make them touchier. I have ...
2
votes
4answers
116 views

Ease of servicing disc vs. rim brakes

How easy is it to keep a mechanical (non-hydraulic) disc brake system working at home with a set of "normal" (not bike-specific) tools, especially compared to rim brakes? Discs seem to be currently ...
3
votes
2answers
74 views

Effectiveness of disc brakes with brifters

How well do mechanical (non-hydraulic) disc brakes generally function when used with brifters?-- This combination seems to be increasingly common among e.g. adventure bikes such as the Salsa Vaya, ...
0
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2answers
60 views

Converting from V-brakes to Disc Brake without existing mounting holes [duplicate]

I have an Electric Bike with rear brakes which are not as strong as front disc brake (countless amount of tweaks never solved it well without rubbing the wheel too much). So, I am looking at ...
2
votes
4answers
376 views

Hydraulic disc brakes - total friction as a function of rotor size

I have a hydraulic disc road bike with a 160mm rotor on the front and a 140mm on the rear. The setup is exactly the same front to rear, except for rotor size. I'd like to know the disparity between ...
41
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15answers
37k 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.
4
votes
1answer
74 views

What is the difference between disk brake rotors?

Differences in rotors include size, thickness, pattern cut out of the metal and attachment to the hub. What other differences are their and why? Reason I ask is I recently built up a budget mountain ...
2
votes
2answers
61 views

disk brake rotors mounting on bmx hubs

Preface: I am going to start building out new bike for myself and decided to put disk brakes on my new bmx build as an additional challenge. I am old school and prefer brakes on front as well, it ...
6
votes
5answers
2k 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 ...
29
votes
5answers
63k 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 ...
5
votes
1answer
114 views

How do I get rid of weird rubbing noise on my cx bike?

Recently I got the Giant Revolt 3 and have been riding it for a few days now. I have lately noticed that there is some rubbing noise when I apply the brakes. If you look at this picture (might be a ...
9
votes
2answers
91 views

Is a damaged BB7 inner caliper pin dangerous?

It was late when I tried installing some replacement brake pads, and for some reason the top of the replacement pads wouldn't fit properly into the channel that is supposed to guide the pads (lower ...
6
votes
2answers
127 views

Road bike disc wheel interchangability

This may be a duplicate, but I didn't find an answer: Are road bike disc wheelsets interchangable? For example my cx bike has DT Swiss R24 wheels, could I buy a set of Mavic Ksyrium wheels and fit ...
4
votes
1answer
191 views

Using different style disc rotors with the same brake calipers

I currently have a set of TRP Hy/Rd brakes that came with 6-bolt style rotors. I am interested in purchasing a different wheelset that uses Shimano's centerlock style hubs. One wheelset would serve ...
2
votes
2answers
371 views

Which disc brake pads do I need for Tektro Auriga?

I have Tektro Auriga Sub disc brakes and the pads need replacing. The only pads for this make I could find online were discontinued. Do I need to get the same make, and if not how do I know they'll ...
5
votes
1answer
206 views

Shimano Hydraulic disc brakes- Lever compatibility

I am looking for practical advice on compatibility between various Shimano hydraulic disc brakes, especially the lever assembly. Currently I have two separate sets, one M446 Left lever, attached to a ...
3
votes
4answers
273 views

Should disc brake rotors be removed when packing bike for travel?

I've been looking at a few tutorials on packing a bike to take it on a plane, and most of them make no mention of disc brakes. One did specifically mention disc brakes, and recommended taking the ...
4
votes
2answers
148 views

B01S brake pads for Deore A-M615 brakes?

I bought replacement pads for my Deore A-M615 brakes. They installed just fine. But after cleaning the old pads, I saw that they are G01S, while the new ones are B01S. G01S, the original: B01S, ...
1
vote
0answers
89 views

I'm looking for a 700c disc fork. Integrated headset and fender eyelets [closed]

I want to upgrade my winter bike to a disc front. I cannot find a 700c integrated headset fork with disc mounts and fender eyelets. It needs to handle 35cm tires (so, yeah, a 29er fork will probably ...
3
votes
1answer
105 views

The piston on my Avid Elixir 5 brakes popped out. Does the caliper need to be rebuilt?

One of the pistons popped out of the caliper on my Avid Elixir 5 brakes. Can I just put the piston back in and bleed the brakes and then they will be good as new, or do I have to rebuild the whole ...
3
votes
3answers
107 views

Center Lock to ISO Disc Adapters

We've got a bike where the front hub (Shimano Alfine dynamo) uses a Center Lock rotor and the rear hub (also Shimano, go figure) uses an ISO rotor. The front hub is giving me fits trying to sort out ...
9
votes
3answers
3k 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) ...
6
votes
1answer
310 views

Mixed pair of sintered and organic brake pads for disk brakes

I am researching for a new road bike for myself, trying to identify the must-haves from the nice-to-have features. Disk/Disc brakes are on the must-have list, but the descriptions of brake pads are ...
3
votes
1answer
170 views

How much runout is acceptable in a disc brake rotor?

I'm trying to sort out pad dragging / noises in Avid BB-7 mechanical disc brakes and I'm wondering how much runout in the rotor is acceptable? Right now I have about 0.05 mm (measured with a Park ...
3
votes
1answer
76 views

Intermittent disc brake rubbing

My partner has a Kona Sutra with Avid BB-7 disc brakes. The front brake rubs intermittently on the rotor. I just went to see if I could figure out what the problem was and right now the disc runs true ...
2
votes
2answers
138 views

When I pull my disc brake handle the mechanical caliper will grab then release

My rear disc brakes will grab a little then release all together. I had tightened by cable at the brake handle so I loosened it but it still does the same. It is a Trek mechanical disc brake.
1
vote
1answer
131 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 ...
2
votes
1answer
184 views

What can my Shimano BR-M445 caliper be replaced with?

I have a Shimano BR-M445 disc brake caliper that has decided to give up on life, so I need a replacement. It seems like the BR-M445 is no longer produced, so are there other calipers that can replace ...
4
votes
1answer
121 views

Troubleshooting Noise from Avid BB-7 Road Disc Brakes

I'm trying to track down a dragging sound from some Avid BB-7 brakes on a Kona Sutra. The hub is a Shimano Alfine DH-S501 dynamo hub with an SM-RT82 Centerlock disc. The noise sounds like a dragging ...
4
votes
3answers
2k 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 ...
2
votes
1answer
90 views

TRP Spyre SLC brakes compatible with other vendors' rotors?

Does anyone know whether TRP Spyre (SLC) mechanical disc brakes can be used with other vendors' 160mm rotors, i.e. the ones for SRAM's HRD brakes?
1
vote
1answer
140 views

Are my disc brake pads contaminated?

My rear brake never locks the rear wheel even with full pull on the lever, especially going down hill or fast. I can even pedal a bit with the brake depressed. This is a recent issue and sometime in ...
4
votes
2answers
135 views

Issue replacing Avid BB7 disc brake pads

I just replaced the brake pads in my BB7 disc brakes for the first time. I read up, watched videos, til I grasped what I was doing, and tried more than a handful of times. On the front brake, I can ...
3
votes
2answers
622 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, ...
2
votes
2answers
92 views

Can an imperfect hub make a disc rotor rub?

I had a 160mm disc rotor on a road bike that was rubbing a bit in one spot, not severely, but enough for me to notice. I've tried to true it a few times over the past couple months with little ...
75
votes
15answers
16k 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?
12
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3answers
11k 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 ...
3
votes
2answers
109 views

How do I get the pads out of my Avid BB7 disc brakes?

I have never been able to remove the pads from my Avid BB7 brakes. It seems to take too much force to get them out, I figure I missed a step somewhere, or I'm doing something wrong. I can't figure it ...
2
votes
2answers
157 views

Removing and reseating front wheel makes disc brakes rub

I have a brand new bike with Hayes CX Expert disc brakes. When I picked it up at the shop, they had dialed the front brake in nicely so it grabbed pretty quick (i.e. without having to pull it right to ...
4
votes
2answers
89 views

Disk brake pads too thick?

I have an old Magura Julie disk brake. It seams that new pads are too thick for the brake. I already tried 2 different types. But when I insert the new pads the gap between the pads is completely ...
3
votes
1answer
1k views

Require a star tool to remove disc rotor

I need to change my disc brake rotors. I discovered that I require a star tool. Here is a picture of my rotor bolts. Can someone point out a tool that will fit this? Prefer a bike tool. To give some ...
4
votes
3answers
8k 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 ...
2
votes
3answers
239 views

My rear disc brake makes noise when I ride fast

I have a full suspension mountain bike with disk brakes. When I ride fast, my rear disk brake starts to make a noise similar to the one you would hear when sharpening a knife. It happens when I ...
1
vote
1answer
45 views

Pads in contact with disk when idle on my SLX L675 disk brakes

I've recently bought a Nishiki Hyper pro which features the hydraulic Shimano SLX L675 brake system. What I've found is that the pads on the back wheel breaks appear to be in constant light contact ...
2
votes
1answer
142 views

What can cause disc brakes not to react after keeping/moving the bike upright, then recover?

Recently, I experienced a strange situation with the Tektro hydro disc brakes on my hybrid bike (would the model be helpful here?): I carried it upstairs at a friend's place, and later moved it ...
7
votes
3answers
4k 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
votes
1answer
271 views

Do mechanical disc brakes suffer from heat-induced fade?

The other day I read a question about heat induced brake fade in hydraulic disc brakes caused by too much braking on long, steep descents, which is something I have also experienced when cycling in ...
3
votes
1answer
151 views

Brake hard on new cycle

I saw someone after buying a new bicycle (a hybrid), pulled the brake as hard as he could for few seconds and dragged the cycle along while braking like that, 1 brake per centimeter. Why did he do ...
2
votes
3answers
139 views

What are the securing rings on the disc brake pads pin called?

I've misplaced mine, and noticed the other caliper doesn't have the other one. How important are these? I mean, do pads fail or come loose at times, without these safety feature present? Is it ...
5
votes
1answer
517 views

Should brake fluid come out of a misaligned disc caliper piston?

I have a shimano XT hydraulic disc brake system. While servicing it I took out the pads an checked the pistons in the caliper and noticed that only one is extracting. After a few pulls on the lever ...