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Questions tagged [disc-brake]

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

1
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1answer
67 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.
-1
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0answers
43 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
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3answers
134 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
251 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
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1answer
81 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.
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0answers
117 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
377 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
63 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
132 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
117 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
72 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
90 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
71 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
399 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 ...
13
votes
6answers
4k 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
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1answer
374 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
108 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
467 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
738 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
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1answer
92 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
57 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
200 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
53 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
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2answers
101 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
92 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
148 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
355 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
219 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
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0answers
33 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
97 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
103 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
67 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
6k 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
177 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
134 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
228 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
379 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
322 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 ...
2
votes
3answers
277 views

How much does a front wheel last with disc brakes vs calipers?

I've read that the calipers end up "eating" the rim. How many km in the city or touring (with a normal use of the brakes) does it take to destroy a rim? Is it something to worry about? Considering ...
3
votes
1answer
196 views

Quad QHD-4 Axis Disc Brakes stuck (can't push open)

I have Quad QHD-4 Axis Disc Brakes that were probably never maintained and are stuck. There was a lot of grime and dirt all over, the pads even rusted a bit. It probably locked due to this and I also ...
0
votes
1answer
65 views

Jaqwire KEB vs Shimano DA Brake Cables [closed]

Looking to replace my brake cables/outers on my CX bikes (105 brifters and TRP Spyres brakes). Both outers (front and rear) run the full length (shifter to brake) on my CAADX so there’s a lot of outer ...
5
votes
3answers
1k views

How to clean disk brakes?

I want to clean my disk brakes and am wondering if it is sufficient to only remove the pads and use water & soap when washing the parts. If not, is there a list of stuff to avoid when cleaning ...
6
votes
1answer
3k views

Is there a wheel which can use both disc brakes and rim brakes?

Could I buy such a wheel, or would I just have to build it? I've heard disc-wheels won't take the punishment from normal brakes. Edit: I want to get new wheels, and I want to be able to swap them ...
4
votes
1answer
138 views

How should disc brake rotor size scale with wheel size?

I was wondering whether 20" wheels can get away with smaller rotors than 28" wheels, and if there is a correlation, if it is linear. If it was linear, then 140mm discs on a 20" wheel would be ...
2
votes
1answer
640 views

How do I properly install pads into a Shimano BR-M365 disk brake caliper?

I've been an idiot. I took them off the bike this morning, and there's nothing left - the springs have been bent back and stripped off, and that strange 'rubbing' noise I've heard from the back wheel? ...
0
votes
0answers
51 views

Brake Pads for 2001 Huffy Solstice Mountain Bike (Top1 mechanical disc brake) [duplicate]

I bought a Huffy Solstice Mountain bike here in Australia in 2001 from Kmart in Castle Hill Sydney. Have not been able to find any information on it anywhere. Needs new disc pads for the Top 1 230 mm ...
5
votes
4answers
3k views

Are disc brakes weak? And what is “bedding in”?

I've owned a couple of department store bicycles in the past with caliper brakes and I set the brakes up properly so when I squeezed the brakes the bike stopped pretty quickly. I test-rode a bicycle ...
7
votes
3answers
532 views

While on a ride, realised rear disc rotor was contaminated, what could I have done?

Last night, commuting, I got lots of dirty water all over my back brake (Promax Render-r mechanical disc), as well as on most of the rest of the bike, and me. I wiped the rotors with a clean rag to ...
0
votes
1answer
1k views

Shimano/third-party rotor compatibility with low end hydraulic brakes

Shimano say that their lower end hydraulic brakes (e.g., BR-M365) are compatible with 'wide' rotors. See http://productinfo.shimano.com/#/com/2.0?acid=C-461&cid=C-460 for details. Wide rotors ...
2
votes
2answers
201 views

Replace disc brake pads for Huffy mountain bike

I have a Nighthawk Mens 18-Speed Mountain Bike. When it comes time to replace the disc brake pads, I saw that Huffy sells the whole brake caliper for $8. It seems like it would be cheaper to just ...