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Questions tagged [disc-brake]

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

1
vote
2answers
100 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, ...
0
votes
0answers
66 views

Weird brake rubbing

I have a Voodoo Bizango, which I take mtb riding about twice a month. The other day I took my bike into my work and had to bleed my front brake and replace the pads. We followed all the appropriate ...
2
votes
7answers
179 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
146 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
125 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
57 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
48 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 ...
4
votes
1answer
68 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
202 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
80 views

Disc brake rotor wear limit

What is the wear limit for a disk rotor?
2
votes
1answer
119 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
89 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
60 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
178 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
485 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
157 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
118 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....
3
votes
1answer
511 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
75 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
183 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
136 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
100 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
93 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
99 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'...
5
votes
2answers
403 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 ...
14
votes
6answers
6k 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
563 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
1answer
139 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
663 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
1k 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
95 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
59 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 ...
3
votes
3answers
219 views

Is it significant that my bike sometimes makes a “twang” sound when I hit a bump?

I recently bought a 2016 Cannondale Synapse Carbon Disc road bike, which is working great -- however I notice that occasionally when my front wheel hits a bump (e.g. a small pothole or the lip of a ...
0
votes
1answer
85 views

Front wheel shifting left on braking with new front shock and fender install

I have a specialized turbo electric bike and just had the shop put in a rock shox paragon front suspension. They didn't have the rotor size adapter for the disc brakes so they swapped my 180mm rotor ...
0
votes
2answers
105 views

Disc brakes don't work at all

I recently purchased a brand new mountain bike with disc brakes. It's only been a few months of riding and the brakes have stopped working to the extent that I can still ride (with effort) while fully ...
3
votes
1answer
109 views

Which rotors and do I need lock rings

I'm upgrading wheels on a cross bike. My new wheels are centerlock disc whereas current ones are iso 6-bolt, so I have to buy some new centerlock rotors. I'm confused about the lock rings. Shimano ...
1
vote
4answers
155 views

Lever pulsates while braking

I installed a new front float rotor, the ones that you can get from AliExpress. I have Deore XT brakes. While using the front brake the lever moves back and forth while pulling it. I inspected ...
3
votes
1answer
566 views

Are disc brake post mount adapters compatible for both front and rear?

Post mount (PM) is a standard of brake mounts. Adapters are used to suit larger rotors. When I go to a shop, I see that apparently there are versions labelled as front or rear specific. On the other ...
4
votes
1answer
265 views

Are these extra holes on the frame for disc brakes?

My mtb (SERIOUS Rockville), which currently has rim brakes, has these holes at the back of the frame and I am trying to understand their use. Are these for disc brakes? Are these for disc brake ...
1
vote
0answers
35 views

Can I combine two pm break mount adapter?

I think about upgrade my shimano rear brake disc from 180 to 203 mm. The mount system is a pm 160 direct, meaning I currently already have a pm 180mm adapter. Weirdly, I couldn't find an adapter for ...
0
votes
2answers
112 views

Rear disk brakes stopped working in Trek DS 2

I have recently bought my first disk brake bike and after having the first ride, I noticed a slight rear disk brake rubbing noise. So, next day I decided to have a look and reposition the brake. Since,...
1
vote
1answer
119 views

Is there any difference between road and mtb discs?

I'm trying to find which discs should be used with a 105 hydro groupset but I can´t find anything. When I search for 105 dic brakes I'm always redirected to the calipers and not the disc it self, or ...
0
votes
1answer
73 views

Sudden gap between disc brake and pads?

I had adjusted my disc brakes (Tektro Spyre-C) in such way that the gap between discs and pads were tiny (just enough to slide a sheet of paper). Recently when I rode through a forest, there was a ...
0
votes
1answer
9k views

Shimano Hydraulic Disc Brakes vs Tektro Hydraulic Disc Brakes [closed]

My current bike has this brake set: "Tektro HD-M285 post mount hydraulic disc brakes with 160mm 6-bolt rotors and Tektro levers." I have read many places online that people prefer "Shimano M315, ...
5
votes
2answers
181 views

What are cheap options for an extra set of brake levers for mechanical disk brakes?

A quick question. I want to have an extra pair of brake levers for my mechanical disk brakes set at a different position on my handlebar(s), and I want the whole upgrade to cost as little as possible. ...
1
vote
2answers
149 views

Hydraulic brakes accidentally oiled

Please help me. When I'm using my hydraulic brake I hear a weird sound. I think putting oil on it will cure the problem but I guess it just come out worse. After putting oil my brakes they are not ...
5
votes
2answers
311 views

Avid BB5 asymmetrical pad rub position and squeal

I'm setting up some Avid BB5s. As I tried to bed in the brakes, the front one squeals quite heavily, the back does not. The following image is of the non-drive side of the front disc rotor. (Where ...
3
votes
4answers
514 views

Mechanical disc brake scratching noise

The rear mechanical disc brake on my MTB makes a sharp intermittent scratching sound every time the wheel gets to a certain point in each revolution. The disc is true, so that is not the problem for ...
4
votes
1answer
347 views

Prevent wheel bearing from coming loose due to disk braking lateral force

I have an entry range gravel bike (Kona Rove AL 2017) with disk brakes and the cup and cone front wheel hub shown in the pictures. There is the cone itself that threads on the axle and a top ring that ...