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Questions tagged [disc-brake]

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

8
votes
1answer
85 views

Is there a standard disc brake mount to disc brake rotor distance?

I'm new to disc brakes and trying to figure out what I need to buy to buy them for a wide fork (135 mm dropout spacing) with IS disc brake mounts and an electric front wheel. I've researched, but I ...
1
vote
1answer
65 views

Disc brake rub problem

There are a lot of answers for this topic already but I haven’t been able to fix it yet. When my disc brake caliper bolts are loose the rotor does not rub but when I tighten them the rotor rubs. I’ve ...
0
votes
0answers
66 views

Switching to Grip Shift

I want to get Revoshifters on my Diamondback. What brake levers would be compatible? I have disc brakes.
1
vote
1answer
55 views

Disc brakes not separating with force

I have Tektro disc brakes on my bike, and I guess I pulled the lever when the back wheel was off. After the pads were not separating I tried to force them apart, but got no luck. Is it because there ...
-1
votes
0answers
84 views

I want more info on my bike I bought a garage sale

Metallic red with black ghost letters. Black handle bars 26 inch tires. 24 speed.
3
votes
1answer
73 views

Can I use slider dropouts on my track dropouts?

My bike's dropout/fork-end basically look like this: and I wonder if I could use something like this to convert it into a vertical dropout with a hanger and disc caliper mount: I'll only be using ...
3
votes
2answers
77 views

Giant Defy Advanced 2 brake replacement

I just bought a 2019 Giant Defy Advanced 2, with Giant's "Conduct SL Disc" brake system and it's the only thing about the bike I don't like, for many reasons. But my question is, are the rotor mount ...
2
votes
1answer
67 views

BB7 disc brake pads

I have an Avid BB7 front disc brake on a cycle that appears to have a missing inner brake pad. The outer one and the butterfly clip are in place. What might account for this? The cycle is new to me....
1
vote
1answer
238 views

Upgrade disc-brake wheels

Just bought new bike with disc brakes. If I buy an upgrade wheelset do brake discs (rotors) come with? Or do you have to buy them separately?
17
votes
4answers
2k views

Is disk brake effectiveness mitigated by tyres losing traction under strong braking?

So I understand that disk brakes are superior to rim brakes and this leads to faster stopping particularly in wet weather. I have wondered though, in wet conditions when you wish to stop as fast as ...
2
votes
2answers
671 views

Shimano 105 brifters (5800) and Avid BB5 compatibility

Are Shimano 105 brifters (5800) compatible with Avid BB5 mechanical disc brakes?
3
votes
2answers
143 views

Should I worry about uneven disc brake pad wear?

My bike was squeaking from the front wheel area when I tilted it to one side or another, but not when I rolled forward or used the brakes. I figured it was probably my disc brakes so I took them out ...
-1
votes
1answer
55 views

Mechanical disc brake not like it used to be

So basically, I removed a part from my caliper, the one with a spring in it, that is supposed to push the pad onto the rotor. I removed the cover and the spring popped out. I don't know why I did that,...
2
votes
2answers
114 views

Front disk brake squealing

I know that squealing brakes are fairly typical questions but I have not found a solution yet. My bike is a Haibike with Tektro Auriga Comp hydraulic disk brakes and in recent years I ride in ...
6
votes
2answers
2k views

Can I convert a rim brake wheel to a disc brake wheel?

I recently bought some Roval SLX 24's from eBay. I made a pretty silly error and didn't check whether they were rim or disc brakes. I need them to be disc brakes. Should they be rim brakes, will ...
2
votes
1answer
89 views

Brake weirdness on my new E-bike

I very recently purchased an E-bike for commuting to work and other area locales. I understand with any new bicycle there will be some break-in time and after a few rides I did notice the brakes were ...
0
votes
1answer
55 views

What can cause narrow disc brake gap in TRP Spyre-C?

I have mechanical disc brakes (TRP Spyre-C), second year. Last year I removed and mounted wheels without problems. This year I am all surprised because I cannot adjust the rear brake. Front -- no ...
4
votes
2answers
232 views

How can I fix brake pads being too tight even after pushing the pistons back in?

I just got delivery of a road bike with SRAM Red disc brakes. It was delivered with little inserts in the brake pads to prevent accidental squeezing of the lever when the rotor was not in. When I put ...
1
vote
2answers
133 views

Quick release and tires moving in the frame?

I have a Schwinn Boundary 2017 and it came with a quick-release front wheel. I noticed that no matter how tight I put the skewer it would be in a different position after extreme braking. The bike ...
10
votes
2answers
1k views

How to install round brake pads

I decided to change my bike's brake pads myself. My bike has the following brakes: Promax DSK-915. I contacted the online shop I ordered my new brake pads (and my bike last year), before purchasing, ...
2
votes
6answers
222 views

Loud cracking/creaking sound only when cycling uphill

I've bought a new road bike with disk brakes from Canyon (Endurace AL Disc 8.0) and have it now for a month. Since the beginning it makes a loud cracking/creaking noise. It sounds metallic, almost ...
1
vote
3answers
180 views

Hybrid flat to drop conversion advice [duplicate]

I have a Whyte Portabello hybrid, I wanted to swap to an adventure bike with drops. I thought as an alternative it might be easy to convert my existing bike instead, and save a bit of money. It has ...
2
votes
2answers
165 views

How can I know my brake fluid needs changing?

I have a few bikes with shimano disc brakes. I know changing the fluid is something that can be done and I could probably work out how to do it but I don't know what to look out for to know its time ...
1
vote
1answer
65 views

Finding compatible parts

I am looking for some guidelines for finding compatible pieces with the ones I currently have installed on my bike. I have for instance a right brake lever (bl-m445) which is leaking oil. It is ...
1
vote
1answer
56 views

Mechanical disc brake calipers: Removing pads from top side vs bottom side

Regarding mechanical disc brakes, is it preferable to have a caliper with pads removable from the top side? Shimano BR-RS305-F calipers use pads removable from the top; Shimano BR-R317 uses pads ...
5
votes
1answer
195 views

What do I do about a hydraulic disk brake piston that won't retract correctly?

My dual piston Shimano XT brakes are acting strange... One piston won't return to the right place, so one brake pad can be rubbing all the time, which doesn't let my wheel spin freely... I have done ...
4
votes
2answers
395 views

Are disc brake rotors interchangeable between brands?

I have Tektro HD-R310 brakes, with center lock rims, using the new and only center lock rotors from Tektro TR160-35 Well after 2 months of driving in winter, i already notice some rust on the rotors (...
0
votes
2answers
104 views

Disc brake rotor wear limit

What is the wear limit for a disk rotor?
2
votes
1answer
137 views

Disc brake keeps making ping-like shudder

I have a commuter bike with Tektro MD-285 hydraulic disc brakes. I commute about 14 miles every day (7 in, 7 out) in most types of weather, but I am not a performance cyclist by any means. It's just a ...
1
vote
1answer
117 views

How to chose the correct hydraulic disc brake rotor size for touring bike?

I have ordered a Shimano Deore M6000 disc brake set. What rotor size should I chose for my touring bike? I am 85 kg and my bike is approximately 15-20 kg.
0
votes
1answer
65 views

Mechanical disc rotor for CUBE MTB - front wheel : Shimano 559x17-21c

Seeking advice with regards to the size of disc brakes for front wheel. Cube mountain bike. Front wheel: Shimano 559x17-21c. Disc brake: Shimano brake disc sm-rt 10 Centre Lock 160mm Could you ...
1
vote
3answers
284 views

How do I know what brake rotors to get for my bike?

In the next month or so I plan on getting the 2019 Trek Crockett 5 as a cyclocross/road bike. I will also be getting some nicer road wheels for the bike so I can swap out the wheels whenever needed. ...
3
votes
2answers
1k views

How tight should I screw my thru-axles?

I have a new road bike with thru axle and disc brakes (Ultegra). I noticed that depending on the how tight I screw the axle in the frame, the brake disc will be closer to either side of the brake pads....
0
votes
2answers
266 views

Convert MTB mechanical disk brakes to hydraulic

I want to convert my mechanical disk brakes to hydraulic. I don't know what size calipers to get. I plan on using the same rotors.
1
vote
0answers
123 views

Hydraulic disc brakes operating by themselves

When cycling up steep inclines on my mtb sometimes the rear disc brake comes on without me being anywhere near the brake lever. I can tell it's doing it as it's gradual and pedalling becomes difficult....
7
votes
1answer
800 views

Is there way to fix a disc brake rotor if slightly bent?

Rear disc on my Acid 2016 is little bit bent so while riding it makes a strange noise when that part of disc comes through the caliper. Is there any way fix that or should I buy new disc?
3
votes
2answers
87 views

Disk brake caliper fit, inboard width of calipers

How can you tell if a disk caliper is going to fit on a given fork? there is an inboard width of a caliper that determines how far into the wheel it is set, ie. make or brake compatibility with the ...
4
votes
2answers
379 views

Cause of severe brake judder?

I've got a 2018 Canyon Exceed (XC mountain bike) that has recently developed alarming judder in the front brake (SRAM Level T), to the point that it makes the forks "twang" backwards and forwards, ...
1
vote
1answer
159 views

What is causing my disc brakes to loosen when it rains?

I have Tektro Aquila disc brakes, and I have recently noticed that the brakes need tightening every time it rains. I don't see mention of this model in Are there any major outstanding recalls of ...
1
vote
2answers
136 views

Easy mounting brake calliper on a Lefty

So I have this second hand Canondale lefty MTB which I love very much. Rode it around home in the woods, but now I visit more and more events and I need to transport my bike by car to the event. ...
-1
votes
2answers
94 views

Rear wheel is not locking when I am braking

So when I put my rear brake on my wheel doesn’t fully stop (skid) and I can keep on pedalling when I have got it full on. And then the same happens with my front brake, I can have both of them ...
2
votes
1answer
111 views

Use disc fork on an Lynskey R260?

I got a great deal for a Lynskey R260, that is set for caliper brakes. I'm building my first bike from scratch and am thinking of using disc brakes on the front fork. Is there any reason why I wouldn'...
6
votes
2answers
416 views

Is there anything special about rotor bolts?

I fitted a new rotor to a new wheel yesterday (6-bolt) and didn't have any spare bolts so borrowed them from another bike. As I go to buy replacements, is there anything special about such bolts? I ...
16
votes
6answers
9k views

6-bolt vs centre-lock: pros and cons?

I am having a new set of wheels built, and am trying to decide on whether to go with 6-bolt or centre-lock rotor interface. What are the pros and cons of the two systems?
1
vote
1answer
780 views

How much more expensive are hydraulic disk brakes compared to mechanical disk brakes?

How much more expensive are hydraulic disk brakes compared to mechanical disk brakes? I'm asking this to determine which parts contribute to price differences across different models and brands. Is ...
1
vote
2answers
202 views

Upgrading from TRP to Shimano disc brakes

My wife purchased an Ultegra 8020 groupset for my birthday present. Unfortunately the brake calipers do not line up with the mounts on the frame, fork is 74mm, frame is 51mm. Are there adapters so I ...
-1
votes
1answer
893 views

Can I go from post mount to flat mount disc brakes

I have post mount TRP Spyre calipers, how can I upgrade to flat mount Ultegra calipers? are there adapters available? I've only seen adapters for flat to post.
2
votes
1answer
2k views

TRP HY-RD adjustment

Really struggling with these brakes now. Just installed new pads, but pistons won't separate far enough to put the wheels back in. Tried pushing the piston in using a plastic tyre remover, but no joy....
1
vote
1answer
96 views

Disk brakes don't work well after taking out pads and putting them back

I checked my disk brakes for the first time last night (i've never had disk brakes before). The front ones were definitely worn out, and I replaced them. They work great, now. With the rear ones, I ...
2
votes
1answer
64 views

IS mount facing?

I am currently trying to convert my bike to disc brakes. The internet advises to face the IS mount on the frame, because it is coated with paint. Usually this would be no problem, because the actual ...