Questions tagged [brakes]

Disc/rim/drum/coaster brakes; braking technique, maintaining brakes, anything else about stopping a bike.

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2answers
29 views

Greasing a roller brake in a difficult spot!

I have a Gazelle cargo bike with Shimano Nexus roller brakes. I know these need to be greased fairly regularly. Unfortunately the bar from the carrier is right on top of the hole for adding the brake ...
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1answer
36 views

Small part for Shimano 105 brakes

My road bike has Shimano 105 brakes, circa 2003. Today, I removed the shoes from the front brakes, unscrewed the "fixing screws", and slid out the pads, so I can put in new pads. Somehow, for one of ...
5
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1answer
127 views

What causes and how to fix wandering bite point on Shimano hydraulic brakes?

For the last two months and less than 600 km of riding I have been using a pair of new Shimano SLX BR-M7120 "high power" 4-piston hydraulic disc brakes. Yesterday I have noticed that the bite point of ...
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1answer
28 views

Can I use a Shimano BL-MT200 lever on a Shimano BR-M446 brake caliper?

I have a leakage on my lever, and can't find any Shimano BR-M446s for sale. Was wondering if Shimano BL-MT200s were compatible.
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1answer
77 views

Can I install the double brakes on the tt handlebars?

I have a fixed gear bike. I want install a tt handlebars, but I don't know it can install double brakes?
4
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2answers
320 views

How can I update the brake system on this vintage Universal La Riviera ladies bike?

I would be really grateful for any advise on how to go about updating the brake system on this vintage Universal La Riviera ladies bike. The brakes don't work properly so I can't safely ride it. The ...
2
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2answers
113 views

What is the working mechanism of Shimano Power Modulator?

How does the Shimano Power Modulator works? Since there are at least 3 power modulators from Shimano, I refer to the SM-PM40, a little cylinder that runs on the front brake cable. I never had the ...
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1answer
48 views

Will Shimano B01S brake pads work with m675 slx

I recently started cycling regularly again after 3 years or so and need to change some parts. It's infuriatingly hard to find information on compatability for parts now that CRC can't sell Shimano ...
3
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1answer
69 views

Problem with caliper brakes of Pure Fix Original Series

I bought a new bicycle about a month ago (this bicycle) and I have been having problems with the brakes. When I brake, it sounds as if metal is rubbing against metal. I went back to the shop a couple ...
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5answers
2k views

Endless disc brake issues

We've purchased a new e-bike for commuting, its very heavy and carries a heavy load, and the commute is through a very hilly neighborhood. The mechanical disc brakes have become a constant issue, ...
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1answer
65 views

Shimano MT500 leaking from bleed port

My rear Shimano MT500 hydraulic disk brake has acting up for a while. After doing a full bleed and new set of pads it would be fine for about 2 weeks then start rapidly losing performance and ...
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6answers
3k views

Front hydraulic disk brake is too powerful on MTB — solutions?

I am thinking about disconnecting my front brake altogether because it's either on or it's off, and there's no in-betweens. As a result I've been over the handlebars about five times now and it's ...
3
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1answer
64 views

Adjusting TRP RG957 deep drop rim brakes

I've got a lovely new bike for my daily commute, a Condor Italia. I've done about 1,500 km on it and I need to adjust the brakes. I would expect to just turn this bit: But that will not turn, and it ...
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1answer
81 views

How to fix a spring in brake lever?

I was wondering if there was any quick fix for a broken spring in a Pro-Max 239A brake lever. It seems a waste to buy a new one for a broken spring.
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1answer
55 views

Need help identifying replacement parts compatible w/ bike model

I have a 2003 Haro V3 mountain bike, and the 8 speed gearshift no longer works. Additionally, the rim brakes are finicky and I wish to swap to disc brakes. Lastly the front fork is work out and no ...
2
votes
1answer
107 views

Vintage MTB, mounting new v brakes

I'm installing deore v brakes on a 1988 Bridgestone mb2. The front brakes installed fine. On the rear, the pin on the v brakes that is inserted into the frame to set spring tension does not align with ...
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0answers
81 views

What force (in newtons) are disc brake mounts built to handle?

I'm testing a dropout design and wondering what the standard force is considered for disc brake mounts. Simulation of mine suggests a safety factor of 15 with 2000 newtons applied to the ISO brake tab/...
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3answers
865 views

New road bike: alloy dual pivot brakes work poorly

I recently bought a new road bike (a very entry model - Giordano Acciao) which has alloy dual pivot brakes. The brakes seem to work poorly, even though they are quite tight. If I squeeze the brake and ...
1
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2answers
117 views

What brakes do I need

I'm re-building an old bike frame but am stuck on the brakes. There seems to be a lot of clearance between the frame and rim and normal size brake callipers wont reach far enough. Are there ...
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1answer
155 views

New hydraulic disc brake has less stopping power than old rim brake—why?

Recently, I upgraded to a Rockrider 540 bicycle. My previous bicycle (a similar but simpler model) had rim brakes, this one has hydraulic disc brakes. On the new bicycle, the stopping power of the ...
3
votes
1answer
125 views

Are carbon fiber rims susceptible to fatigue?

While reading this question's take on the wearing out of aluminum rims used on bikes with disc brake systems, the inquiry was projected further to include carbon fiber, disc brake rims. Do carbon ...
1
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0answers
46 views

Brake on a pre-drilled track fork

I want to put a front brake on a Cinelli Parallax (track/fixed gear bike). It’s got a predrilled fork, but still a cap on it (as far as I know the cap is made of some kind of wax). What’s the cleanest ...
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1answer
39 views

Shifting is crunchy in Shimano CB-E110

Looking for advice for my GFs Pelago Brooklyn, which has a coaster brake Shimano CB-E110 hub. When shifting gears, the chain hops and crunches. The chain also looks a bit saggy. I only have experience ...
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2answers
151 views

How to adjust brake lever travel?

I am trying to adjust the brakes of a new bike and need some help. It has mechanical disk brakes. I have successfully aligned the disk pads so that they are parallel and are at an adequate distance ...
4
votes
2answers
138 views

Washed my bike with water and muc-off only, now my brakes are weak

I took part in my first bike event at the weekend, a very muddy "gravel" ride which by the end had my bike covered in mud! Rather than put it straight in the car, I took it to the muc-off tent and ...
4
votes
2answers
503 views

What is the name of the hex screw that holds the brake cable

The opening in the hex screw that holds the rear brake cable has become much looser than it used to be. What is the name of the part so I can order another one? (Hopefully they have some made of ...
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2answers
216 views

Swapping position of Shimano shifter and brake lever

I have Shimano Acera shifter and Shimano MT200 hydraulic brakes. The brake lever is mounted outside and shifter is mounted inside of handle bar. See picture below. I want to swap position of this two ...
2
votes
1answer
100 views

Brompton Rear Brake Caliper Assembly Schematic

What is the list and order of components that thread onto the Brompton's rear brake assembly from the brake caliper through to the Lower Stop Disc for an M6R? At some point on a recent ride down ...
5
votes
2answers
3k views

Why do my bicycle brakes get worse and feel more 'squishy" over time?

My bike has disc brakes connected to the lever by cable. I've found I've been tightening the screw by the lever more and more to the point that there's not that much more room to tighten.
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0answers
43 views

Bike makes noise while 2 out of 3 gears

I assembled a new bike. It rides smooth in first gear but makes a particular noise in 2nd and 3rd gear. It doesn't seem to be from the wheel because it's not there if I turn the wheels in air, but it ...
0
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1answer
101 views

My bike clicks and it sucks

I have a roughly 15 year old bike. When I pedal there is a loud click. When I coast the sound becomes louder and more frequent. The sound really annoys me. How do I fix this?
1
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1answer
43 views

Can I use BMX brakes on my Murray Ultraterrain MTB?

I have an outdated 90's MTB that requires single pivot brake calipers. The only brakes of this kind I have found are either for road bikes or BMX bikes. How do I know if they would actually fit before ...
3
votes
3answers
251 views

UCI rules on allowed brakes?

I'm considering buying a TriRig Omega X braking system front & rear for a bike I intend to use in UCI events. I can't find the right document on their respective website, so I'm asking here hoping ...
4
votes
2answers
94 views

Is it possible to combine rod brakes with a coaster brake?

I'm restoring an old roadster bicycle with Westwood rims. I love how it looks but the braking is horrible, especially because I live in an area with a lot of downhills. I don't want to add cable ...
2
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3answers
150 views

What tool to adjust brakes

My brakes make a noise on a time interval, as the tire rotates around. I have Shimano BR-MT520 brakes. I hear you can loosen the two bolts and move it side to side to adjust. What is the name of the ...
1
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1answer
71 views

What is the ideal brake pad material for a MTB used in both downhill and cross-country/Single-track settings?

all! I and my wife both spend a lot of time doing both downhill and single-track MTB in New England. We both are still on our stock organic pads, and are looking to replace our pads soon-ish. I, ...
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3answers
104 views

Mech disc brakes creating too much slack

I've got a 2nd hand bike to play with as I've never been into bikes. When I got it the brakes only stopped while I wasn't on it. I stripped the bike down for cleaning and I re-attached the brake cable ...
-4
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1answer
123 views

What are some ways to use the second brake lever on a bike with no back brake?

I have a road bike with only front brakes and drop handlebars. I've tried to install a bell that rings when you pull the lever and it became functional, but I decided to get rid of it as it had to be ...
2
votes
2answers
324 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 ...
0
votes
1answer
69 views

Cantilever rear brake ineffective

Front brake works fine. Rear brake does not. I took the bike to the LBS to have the rear brake adjusted and get new pads. I expected them to work great, BUT, brake is still not stopping the wheel ...
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2answers
281 views

Rotor does not fit between pads after replacing the pads

I was having rubbing noises and after taking out the pads I so they were completly worn out. I have shimano r7070 calipers so according to their specs I found in a local shop the L04C as they did not ...
-1
votes
1answer
104 views

How to guide rear brake cable in a frame without brake guides?

I recently bought a fixed frame (polo and bike Williamsburg) which I want to ride as singlespeed. The frame has the hole for the rear brake but does not have any attachment to guide the cable. What ...
1
vote
2answers
231 views

How to protect brake cable that runs beneath top tube while hanging bike on rack

My bike's brake cable runs underneath the top tube. This is a problem when I hang the bike on my rack as the bike compresses the cable against the rack. I came upon this question here: Bike rests on ...
1
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1answer
73 views

Help! front wheel brake doesn't brake (Shimano)

when I squeeze my front wheel hand brakes, the lever goes all the way to the grip on my handle very easily. It feels like there is no force to it. On top of that, the brake pads do not move at all ...
1
vote
2answers
122 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
92 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 ...
8
votes
2answers
241 views

Is there a standard disc brake mount to disc brake rotor distance?

I'm new to disc brakes and trying to figure out what I need to buy to buy them for a wide fork (135 mm dropout spacing) with IS disc brake mounts and an electric front wheel. I've researched, but I ...
3
votes
0answers
84 views

SRAM i3 coaster brake only activating after multiple turns backwards

My son's bike has a SRAM i3 internal gear + coaster brake hub. It has recently started sometimes only activating the coaster brake after backpedalling a good one or two full revolutions. When in this ...
6
votes
1answer
137 views

Prevent internally-routed cable housing from vibrating against frame

The rear brake cable and housing are internally routed through the top bar of the frame. It rattles around when riding on bumpy roads and sounds annoying. What's the best way to mitigate this?
1
vote
2answers
186 views

How can one stop brakes from screeching?

I'm hearing that annoying sound when you use your brakes and you get the chills from the screeching sound. I have disk brakes and a relatively new bike. It happens to be front tire shown below. I ...