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
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1answer
110 views

Rear brake doesn`t grip/slips through, doesn`t stop the bike sharp or at all

I cleaned my bike about a month ago and since then I tried to fix both of my brakes. I have hydraulic disk brakes (Tektro Auriga). After I replaced my pads, I was bedding them for over 3 days of ...
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1answer
43 views

Can I change my hub so I can put disc brakes on the bike

So I have this 2007 Janis xc bike and I’m turning it into a trail bike on a budget. I wanted to know if I could change the hub on the wheel instead of buying a new wheel set so I can install some disc ...
2
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1answer
54 views

Formula T1S disc brake rub

I have Formula T1S disc brakes (2014 or 2013 model). One day when it was quite hot (in the 30s), but otherwise on a very mild ride on bike paths with kids, the brake started rubbing constantly by ...
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2answers
82 views

How to fix contaminated brake pads?

I recently spilled some brake oil on my brake pads and now they barely work, and they squeak (which I believe is normal for contaminated pads.)
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3answers
120 views

Big vibration with Tektro Auriga brakes

About a year ago I swapped the v-brakes with a Tektro Auriga kit. I immediately made a mistake by not properly bedding in rotors and pads, doing "powerful" brakes, sudden stopping of the ...
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4answers
75 views

Tektro HD-R210 bleed port adapter identification

I have a generic brake bleed kit and I'd like to use it on my Tektro HD-R210. I'm pretty sure the brakes are just an OEM version of the Tektro HD-R310 - when I asked Tektro for support with the HD-...
4
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1answer
125 views

Is it ok to store a bike with the (hydraulic) brakes locked (i.e. pressurized)?

It's really windy today, and the rain tarpaulin makes a good sail for the bike I'm storing on my balcony. Short of actually mooring the bike to something, I decided to just fasten the tarp a bit ...
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3answers
41 views

Will 180mm rotors fit my Carrera Vengeance Ltd. Edition bike?

So I would like to get Clarks M3 hydraulic disc brake set but the only size available is 180mm but i am not sure what to measure to see if this will fit my carrera vengeance ltd edition 16 inch frame ...
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3answers
213 views

What are the typical range of maximum braking friction forces?

There are many non-bike applications which benefit from using bicycle hardware. Case in point, there is a long and rich tradition of using bike parts in aviation. One particular area of interest is ...
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1answer
63 views

Shimano Di2 Bleed Screw problem

My bleed screw has become damaged and I need a new one. My shifter is Shimano R8070 which according to the spec, the part number should be Y00898030, the screw turned up but it is too small, as in the ...
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1answer
61 views

Tektro HD-M290, change to a dropbar lever configuration. Which levers are compatible?

I want to change my cowboy flat handlebar to a drop bar. I have Tektro HD-M290 brakes and I'm searching for a compatible model of drop bar levers. The bicycle has automatic speeds, so I just need ...
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3answers
205 views

Convert road bike mechanical disc brakes to hydraulic

Im relatively new to road bikes, i was a mtb user my whole life. So i wanted to ask if its possible to change my road bike mechanical disc brake to hydraulic disc brake. I currently have the sora ...
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1answer
147 views

Using non-brand oil for cleaning brake pistons

I am having some problems with rubbing disc brakes and came to the conclusion that it might be because of "sticky pistons". I would like to clean and lubricate them, as here. This video ...
4
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3answers
579 views

Is my front brake installed correctly?

I bought and installed Shimano MT200 brakes to my bike and now I'm wondering are they installed correctly. Seems like only small area of pad is touching the rotor. 160 mm rotor in the front. I had ...
3
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2answers
228 views

Installing shimano mt 200 hydraulic brakes to internally routed frame?

I have a bike with an internally routed rear brake. I bought Shimano mt200 hydraulic brakes to replace the low end mechanicals that came on the bike. My problem is that the brakes came pre-bled. Now I ...
3
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1answer
85 views

Disc brakes installation

I have got IronHorse Maverick 3.2 bikes with v brakes and I want to upgrade to disc brakes. The fork and frame both has Is mount so they should be able to get calipers on them with the right mount ...
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0answers
107 views

Compatibility between Shimano 4-piston hydraulic calipers and levers (possible connection to German DIN cargo bike standard)

There are not too many 4-piston calipers by Shimano. M640 Zee and M820 Saint are identical (calipers), and upon release Shimano claimed to have a 'slight difference in leverage' (i.e. a different ...
6
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4answers
343 views

I am putting drop bars on one of my MTB Shimano 10 speed 1x Deore. I am looking for a road hydro shift lever

I will be putting road drop bars on one of my mtb's for this coming winter as a project that has Shimano 10 speed 1x Deore. My goal is to "simply"🙈😆 have road shift levers and hydraulic ...
4
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2answers
395 views

Shimano Deore hydraulic brake problem

I have a bike (Cannondale Quick MX) I used frequently until last fall, when I got a driving license (not my first, well out of my teens) and a car to use. The bike is 3 1/2 years old now. Since the ...
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0answers
41 views

new Clarks m2 hydraulic disc brakes won't retract when brake lever pressed

I just fitted a new set of Clarks M2 hydraulic disc brakes. I aligned the calliper to make sure the rotor doesn't rub the pads when the wheel is spinning. I then pressed the brake lever, when letting ...
3
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1answer
90 views

Replacing a SRAM Force hydraulic caliper with a new one

I'm replacing my SRAM Force hydraulic caliper with a new one, I've drained the old one so there's no fluid in it. When replacing the caliper with a new one how can I put fluid into it? Should I just ...
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0answers
47 views

Brake problems (hope tech hydraulic)

My brake pads are stuck so I brute force them apart and when I finally put them back on and go to pull the lever it is extremely loose. When I let go it makes the pads completely close up and cause ...
4
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2answers
991 views

Can broken caliper be fixed?

I have a broken hydraulic caliper and am wondering if it can be fixed? Can I buy the half that the broken mount is on or would it be better just to buy a new one?
4
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2answers
139 views

Which bolt to use when aligning disc brakes?

I am struggling with a rubbing disc rotor on a new bicycle. Which bolts should I use when trying to align the caliper? The ones I marked in red, or the blue ones? I tried to use the red ones so far, ...
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1answer
161 views

Should I replace my disk brake calipers?

I have a pair of Shimano Deore BR-M615s on my mountain bike with about 3,000 miles and 5 years on them. Lately I've noticed that both brakes have too long of "pull" before providing braking. ...
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1answer
70 views

My front rotor seems to be making a grinding noise, I have a relatively new bike and I’m not sure what’s causing it

I’m new to cycling and I have a road bike with hydraulic disc brakes. I noticed that they are making a quiet, but audible grinding noise. I’ve heard this noise before and since I have a new bike, ...
6
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1answer
240 views

Hydraulic brake lever doesn't return after being released, dependent on weather

I have a pair of second-hand Shimano ST-RS685 hydraulic brake levers / shifters. Unbeknownst to me they hadn't been used for a year and had quite a bit of dirt / grit inside, which I've cleaned to a ...
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2answers
84 views

Hydraulic disc brake clicks once when I pull the brake lever and the braking force is very bad

I have a brand new Trek Marlin 5 (1-2 months old) with hydraulic disc brakes and the rear brake doesn’t work well and when I pull the brake lever, it clicks once somewhere in the frame (cables inner ...
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0answers
63 views

What and where is the weeping port on Shimano MTB brake levers?

I understand that when you overfill some models of Shimano hydraulic brakes with oil, the excess will flow out of a one-way valve called weeping port, but cannot find any technical documents, pictures ...
3
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1answer
859 views

Reach Adjust on Shimano hydraulic brake levers for MTB flat bar

I am thinking to install Shimano BL-MT200 (or the BL-M315 depending on availability) on my son's bike (my son is 7 years old). The bike currently has short reach brake levers for the current ...
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0answers
42 views

Avid brake lever plays, do I need to bleed?

The particular bike has Avid Juicy 3.5 brake system and it was unused for a long period (years). So I decided to bring it to my wife's place. I removed the front wheel and put it in the trunk. When I ...
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0answers
81 views

Hydraulic disc brake - lever slowly touches bar

I have a magura disc brake. When I pull the lever and keep applying constant pressure to it, it slowly retracts all the way to touch the bar. This process takes about 10 / 15 seconds. I have tried to ...
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3answers
1k views

Front disc brake rattling noise

I recently purchased a brand new Scott Genius 950 at a local bike store. After bedding in the brakes, I noticed a rattling noise while riding coming from the front disc brake. I brought it back to ...
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1answer
136 views

How to adjust brake level movement on hydraulic brake?

My bicycle has Tektro Auriga hydraulic disc brakes. I can adjust how far the level stitches out with a small screw (see here, figure c2). I was wondering if it is possible to adjust how much the ...
2
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2answers
305 views

Hydro disk brakes only work when pumped

I live in a very wasteful student neighborhood, and just found a lightly-used Kona Lisa DS (ca 2007ish) with Hayes Sole hydraulic disc brakes in the garbage. After a thorough dusting, it's in great ...
3
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1answer
274 views

New Shimano 105 hydraulic brake loses pressure

I have a brand new bike with about only 25 miles on it. On a ride today the rear brake (Shimano 105 hydraulic) became spongy, letting me max out the lever but giving on about 25% of braking power. I ...
2
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1answer
44 views

Back wheel rubs against the back brake pad when riding

My aging 26" Nishiki 10 speed is still a great bike and ride and well maintained. 25yr warranty ended in 2009. I am 6'7" and 280lbs now and was 250lbs when I purchased it. For some strange reason now ...
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0answers
68 views

Trouble aligning front disc brake - rotor noise

I'm having trouble getting my front brakes aligned properly and staying aligned. The brakes are Tektro HDR-210 - I asked Tektro and they should be an OEM version of the HDR-310. I've just installed ...
2
votes
3answers
978 views

Hydraulic disc brake - lever compatibility

I purchased a gravel bike with drop handlebars, mostly for commuting and maybe for some weekend bike camping trips. I've only ever ridden mountain bikes with flat bars in the past, but I figured I'd ...
2
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1answer
103 views

Brake pads don’t fit into the calipers [duplicate]

This is my first time replacing the brake pads of hydraulic brakes. I removed the old ones and the model was Shimano B01S Resin, so I bought the same ones. However, when I have replaced them. They ...
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0answers
98 views

Disc brake makes scratch noise when wet

I bought a TREK FX SPORT 5 a couple of weeks ago and I've ridden it like 200km without any problems. Today was the first time I biked when it was raining and I noticed after like 100 meter that there ...
2
votes
1answer
55 views

Brand new BR-R7070 brakes, piston issue [closed]

The ceramic pistons on my brand new BR7070 brakes won't depress at all even with quite a lot of force. There is also a subtle grinding noise when trying to depress the pistons. Did I somehow crack the ...
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0answers
40 views

I require advice on a recurring problem with my brakes

I've had a bike with hydraulic brakes for about six months now, and have a problem with the brake just losing power. I think it's fluid being lost. This is a question I asked earlier Something wrong ...
3
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1answer
60 views

Shimano Alfine lever does not seem to pump oil into the hose even with reservoir full

I am trying to refill a Shimano Alfine BR-S500 disk brake system with oil. I have filled the reservoir with mineral oil... And am repeatedly squeezing the lever, but it feels like no oil is getting ...
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1answer
896 views

SRAM Guide R brakes pad adjustment

I've replaced my old brake pads in SRAM Guide R brake set, and I've noticed that the old pads were sitting much closer to the rotor than the new ones (I've also definitely used all of the old pads). ...
2
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1answer
55 views

Should my new 203mm adapter go over the existing one? Do they stack?

This is my fork: and this is the adapter I got (SM-MA-F203P/PM): (click to enlarge images) The adapter is missing screw holes on the sides to fit on the fork. The bolts it came with are long ...
2
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1answer
355 views

Cleaning Contaminated Disc Rotors

I've had an eternal struggle with my current bike over brake contamination. The levers and calipers are shimano ultegra r8000, so the latest and (almost) greatest. I first noticed it when I took it ...
1
vote
1answer
119 views

Creaky hydraulic disc brakes on MTB

I am having some trouble with my Boardman Mht 8.8. Whenever I press my brakes while stationary, and move the bike with them engaged, a creak and clunk sounding noise appears, every time. This ...
1
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1answer
66 views

Unable to push oil in when bleeding Shimano brakes

I am trying to bleed my Shimano BR-M355 rear brake. This is my first time so it is possible I am making a very obvious mistake. The issue I am facing is that I am unable to push oil in through the ...
2
votes
2answers
598 views

Disc brake rotor scraping against mounting bracket

(My question is related to Rear disc brake rotor rubbing against caliper frame mount? but I hope to provide some more context & photos.) I have a Rocky Mountain Edge mountain bike (possibly 2011 ...

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