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.

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2
votes
3answers
135 views

Air transport of a MTB with hydraulic brakes

I would like to transport my MTB on an airliner's cargo hold. What are the requirements concerning hydraulic brakes, do they need to be flushed?
1
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1answer
94 views

Will an MTB hydraulic brake lever be compatible with road hydraulic brake caliper?

I'm looking for a brake caliper that will be compatible with an XTR brake lever. As I browse through Shimano's line of lightest brake caliper, I found that Dura-Ace is the lightest but it's a road ...
1
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1answer
49 views

TRP Hy/Rd callipers rubbing

I’ve just installed a set of TRP HY/RD brakes and I can’t seem to stop the front ones from rubbing the rotor. I’ve tried realigning the calliper but it seems to be rubbing on both sides not just one. ...
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2answers
57 views

Using a new but potentially dirty olive and barb when shortening hydraulic brake hosing

I wish to shorten the hose on a hydraulic brake system (model is TRP hylex) i have an unused TRP olive and barb, however unfortunately they have been knocking about in a tray with an old chain and ...
2
votes
2answers
138 views

Hydraulic discs on commuter bike

Does anyone have any recommendations in favor/opposed to hydraulic disc brakes on a commuter bike? I'm considering building up a new commuter with discs but, as an old-school kinda person, I have no ...
1
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0answers
55 views

Sram Guide R brakes getting spongy

Long time Shimano brakes user, I've recently (few months ago) got a new MTB with Sram Guide R brakes. At the beginning those felt great - not as "biting" as Shimano SLX / XT I'm used to, but feeling ...
2
votes
1answer
103 views

Hydraulic mtb-style brake lever on drop handlebars

tl;dr Does anyone know of an existing hydraulic brake lever (eg (like this)) that can clamp on a 31.8mm bar or can anyone think of a way I can hack/bodge/modify one? I'm thinking similar to how CX ...
2
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2answers
306 views

Why are brake levers still bent in form to accomodate more than one finger?

I thought of it for a while now. Our brake levers look like this: Why aren't they designed more like this? Is there a purpose for the extra space? Is two-finger braking still essential in hydraulic ...
3
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1answer
96 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
53 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
votes
1answer
133 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 ...
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1answer
85 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
votes
3answers
68 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
74 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 ...
0
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1answer
35 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?
1
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2answers
118 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
346 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
votes
1answer
102 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
126 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
votes
1answer
92 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
67 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
votes
2answers
1k 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
897 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?
3
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2answers
477 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
251 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
419 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
60 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
votes
1answer
64 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 ...
0
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1answer
84 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
165 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
votes
1answer
538 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 ...
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1answer
143 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
370 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
votes
2answers
2k 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
406 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
votes
1answer
343 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
1k 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
517 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 ...
6
votes
1answer
3k 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
vote
1answer
485 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
votes
2answers
2k 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 ...
1
vote
0answers
62 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
51 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 ...
0
votes
2answers
130 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
vote
1answer
1k 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
votes
2answers
837 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
46 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
votes
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 ...
0
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2answers
160 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 ...