Questions tagged [hydraulic-disc-brake]

Hydraulic disc brakes use fluid (either mineral oil or automotive brake fluid) to transmit brake pressure from the handlebar levers to the disc brakes on the wheel.

3
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1answer
87 views

What are real advantages of brake hose junction connectors?

I just received my new brake callipers and handles. They come pre-assembled with hoses and a "hose junction connector". These are the same as Dan Lloyd has in the below video: ...
0
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1answer
50 views

Brake system replacement

Currently I have a Tektro Auriga brake system. I don't like the Auriga brakes at all, so I decided to replace them with Deore XT BR-M800. At front I have 180mm disk and between the caliper and fork ...
2
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1answer
124 views

140mm rear rotor for bike packing

Currently my bike has cable actuated disc brakes, which I will upgrade to Ultegra 8070 callipers and RT-800 Ice Tech rotors. I use the bike for road, some gravel and bike packing. The current rotors ...
1
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1answer
55 views

Disc brake pistons won't stay in

I'm trying to replace my brake pads but when I try to push one piston in, the other one will come out and when I push it back in the previous one will do the same... how do I fix this so that both ...
3
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3answers
53 views

TRP quadiem brakes - lever not in place

Today I got my new YT Tues bike and I've noticed that front brake lever came off the piston and I have no idea how to get it in place if it is even possible? Is it defective or can I fix it? Rear ...
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1answer
67 views

Convert urban/hybrid with hydraulic disk brakes from flat handlebars to drops [duplicate]

I have a urban style bike that I want to convert from flat bars to drops. Can anyone suggest brake levers that: will be compatible with the BR-M355 calipers that came with the bike will be ...
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1answer
33 views

Cannondale MTB hydraulic brakes

Brake lever pulls straight in to handle bar and brake not working, have tried putting more fluid in but it’s still not working,has anyone got any ideas?
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2answers
112 views

How to get grease out of my brake rotor holes

I got an as-is bike used that came with disc brakes. Both brakes squealed so I cleaned both rotors and both sets of pads. That fixed the back one but not the front one. I removed the pads and noticed ...
3
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2answers
136 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 ...
3
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1answer
98 views

Do dirty brake pads cause them to wear faster?

I have a road bike and a mountain bike which both use shimano B01S brake pads. The road bike has done 4000km and the mountain bike has done 320km. The brake pads on the road bike look brand new while ...
2
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2answers
120 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 ...
2
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1answer
88 views

Constantly engaged disc brakes, how hydraulic brakes retract?

I'm building a little velomobile and I'm thinking of creating a handbrake (park brake) feature where I'd engage the brakes when I leave it somewhere so it can not move (slope, get stolen or whatever). ...
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1answer
62 views

Discs rubbing no matter what I do

So a couple of days ago I regreased my back wheel hub bearings, put it back together so there's no play, golden. But when I put it back in the bike one side is constantly rubbing. Tried loosening ...
4
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2answers
559 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 ...
3
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2answers
887 views

Can hydraulic brake levers get hot when brakes overheat?

If your hydraulic brakes get hot, can this heat ever travel to your brake levers. Can your levers feel hot or is this my imagination?
2
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2answers
240 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 ...
2
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2answers
178 views

Shimano MTB levers with Shimano flat mount road disk brakes (hydraulic)

Can you use Shimano MTB levers with Shimano flat mount road disk brakes (hydraulic)? Cheers
5
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1answer
285 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 ...
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1answer
57 views

Where to find replacement Clarks Skeletal right brake? [closed]

I had completely fixed a stuck piston, when I bloody managed to perfectly snap a reservoir screw so I have no chance of removing it. I’ve had a look online, but I can’t find anywhere selling either ...
3
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1answer
61 views

Does it matter if I let my brakes drain when when taking system apart?

I'm going to be taking apart a Clarks Skeletal Hydraulic Brake system to try and identify what's wrong with it (trying to remove/unstick a piston), so I was wondering does it matter whether I just ...
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1answer
65 views

Stuck compressed piston on a Clarks Skeletal Hydraulic Brake

I've opened up the reservoir and tried resetting the piston on the bleed nipple side and it won't budge. I haven't ridden this bike for about a year and the front wheel was off, and I also noticed ...
2
votes
1answer
149 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 ...
2
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1answer
267 views

New bike's disc brake rubbing the pads

there, I just got a new motobecane bike off of bikesdirect and it comes with this disc brake SHIMANO DISC-BRAKE SET ULTEGRA, ST-R8000, BR-R8000 FOR 25MM MNT, RESIN PAD SHIMANO KSMMAR160DDA MOUNT FOR ...
1
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1answer
126 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
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1answer
210 views

Avid Juicy 3 brake piston problems

I have an 8-year-old old Avid Juicy 3 and I accidentally pressed the front brake lever while the wheel was removed. I used a flat-head screwdriver to reset the pistons. When I spin the wheel after ...
3
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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....
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2answers
342 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.
4
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1answer
256 views

Shimano bolts; oversized hex driver holes? Planning for failure?

This is frustrating me. I recently bought Shimano Dura Ace ST-R9120 hydraulic levers/BR-R9170 calipers combination. Got to the stage of bleeding the brakes and removing the bleed caps from the tops of ...
7
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1answer
976 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
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2answers
407 views

Can I swap front & back brake levers on Shimano ST-RS685? (hydraulic road disk brakes)

I have Shimano ST-RS685 hydraulic disk brake set. I'm used to having front brake lever on the right and rear on the left. (UK). But this bike has front on the left and rear on the right. Is it ...
5
votes
1answer
2k views

How to install pre bled brakes with internally routed frame

I have a 2017 Salsa Mukluk with an internally routed rear brake. I bought Shimano XT hydraulic brakes to replace the low end mechanicals that came on the bike. My problem is that the brakes came pre-...
1
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1answer
342 views

Maintenance on hydraulic disc brakes

With a bike featuring Shimano 486 Hydraulic Disc brakes and levers, what should I do if I wanted to maintenance them? I have no experience of brakes other than V-brakes so where do I begin? The front ...
7
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2answers
1k views

Can a Shimano XT (mountain) hydraulic disc brake caliper be used with an Ultegra STI road brake lever?

Specifically, is the XT BR-M8020 mountain caliper compatible with an Ultegra hydraulic road brifter like like the ST-R8020 or ST-R8070? I have confirmed that they both use BH90 brake hose ("high ...
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0answers
51 views

Hayes Sole Disk Brakes, adjusters stiff/seized?

Second hand bike, my first time encountering Hayes Sole brake calipers. My brakes front and back have gone a bit weak so I wanted to tighten them up a bit. Each side of caliper has an allen key ...
2
votes
1answer
48 views

Tektro HTC 300 hydraulic fluid leakage

I made the mistake of pulling my brake leaver whilst the wheel was off, so the piston came out, and I lost quite a bit of oil. I pushed the piston back in, and proceeded to follow the bleed ...
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2answers
111 views

Brake fluid replacement

Whilst replacing my pads I made the mistake of pulling the brake lever, which pushed the piston too far, and thus lost loads of fluid. I've searched online for the type and quantity of fluid to ...
1
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1answer
880 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 ...
10
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2answers
699 views

Are bleeding kit syringes single use?

I recently bought a bleed kit (for shimano brakes from shimano) and used it on my hydraulic brakes (successfully as far as I can tell). During cleaning up I noticed the syringe says it was for single ...
0
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1answer
45 views

Bike brake bleed question

so after bleeding my Tektro mineral oil brakes, the brakes appear to no longer be functional. when I depress the lever until it touches the handle bars. I am still able to spin the wheel. I think it ...
2
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2answers
2k views

Hydraulic disk brakes vs hydraulic rim brakes

I am considering buying a new bike and have two models in mind. One features hydraulic rim brakes from Magura and the other has hydraulic disk brakes. Despite searching on the Internet and asking bike ...
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2answers
151 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
2answers
73 views

Spongy brakes/ deeper brake press

My hydraulic brake (both left and right) has gotten weaker. I don't know how to say it, but it's like my brakes can now be pressed deeper. My front brake is so bad that it is touching the grips. I got ...
0
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1answer
16k 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, ...
6
votes
1answer
394 views

What did I just do? Fluid shot out of my handlebar when pushing my caliper in

I just bought a new road bike with hydraulic disc brakes, using a Shimano Ultegra R8020 Groupset. The pad was rubbing on the rear rotor and it wouldn't recenter when pumping the brake. The brake lever ...
0
votes
1answer
478 views

Can hydraulic disk brakes be incrementally upgraded?

Background: I used to have a bike with Magura HS33 hydraulic V-brakes which I liked a lot. A while back I bought a new bike with Shimano M395 disc brakes. I've had the bike a little over a year now ...
3
votes
2answers
298 views

Interoperability of hydraulic disc brakes and levers between model lines/manufacturers

My bike came with Shimano Deore XT M765 hydraulic disc brakes and Shimano Deore XT M756 hydraulic levers Dual Control units. I wonder whether the calipers from one manufacturer can be connected to ...
3
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2answers
1k views

Disc of front brake rubs under force

I ride a road bike with carbon frame and fork an hydraulic flat mount disc brakes. A fews days ago the front disc was slightly rubbing on the braking pad, so I readjusted the position of the braking ...
0
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1answer
234 views

Does and adapter for a direct mount caliper to post mount fork exist?

I have a CAAD12 disc which I'd like to fit SRAM Force 22 hydraulic to. I've been a bit enthusiastic buying things without really researching all the pitfalls of the different bits and bobs that go ...
4
votes
1answer
196 views

Steps to remove Ultegra and install SRAM Force disc brakes with internally routed hose

I have a CAAD12 disc with Ultegra, but I prefer SRAM, so I have got some nice new Force levers & calipers that I need to fit. This is my first experience with disc brakes. The front setup isn't a ...
3
votes
1answer
292 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 ...