Questions tagged [brakes]

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

28 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
3
votes
1answer
95 views

Atomized bubbles while following Park process to bleed Magura MT5

I have the Park tool mineral oil bleeding kit (BKM-1), and followed their instructions for bleeding my MT5 calipers. I ended up with soft/useless brake caliper. I think maybe I introduced air into ...
2
votes
0answers
66 views

SRAM Hydraulic brake stuck (with a changed bite point) after landing/impact

I experienced a weird problem on my SRAM level t 2 piston brakes. I like hopping my bike around, e.g. bunny hopping onto curbs. Sometimes, if the impact is hard, the brake lever would have reduced ...
2
votes
0answers
105 views

Brake Bleed Fail

After a successful bleed of my rear caliper yesterday, I decided to do the front today. I went through the process, got all the air and old fluid out, sealed up the system, and when giving it the ...
2
votes
0answers
158 views

What kind of frame and brakes are these?

I just bought a bike and I can't figure out what kind of frame and brakes it has. I found that the derailleurs were made by DNB Japan somewhere around 1960 and that the handlebar is french (Guidonn ...
2
votes
0answers
2k views

Shimano Nexus 3 coaster brake screeching sound

When I brake hard/er with my Shimano Nexus 3 coaster brake it makes a loud screeching sound. Like really loud, everybody on the street would hear it and turn around. Since I know it's all internal all ...
2
votes
0answers
456 views

Internal Roller Brake Problem

I have Shimano Inter M Roller Brakes on my bike. I felt the rear brakes were a bit light after riding 800 or so KM (total mileage on my bike so far) so I thought maybe theres a bit of cable stretch ...
2
votes
1answer
145 views

Front Mountain Bike Cable Disk Brake Is Too Snappy on First Pull

When I grab my front disk brake for the first time on a ride after my bike has sat for a while it will buck me forward. Once it bucks me it works great. I have tried cleaning it with disc brake ...
1
vote
0answers
51 views

Tektro rear brake does not stay closed

Two weeks ago I had an issue about my brakes QR not working and asked about on this site Road rim bike brakes don't open when using the release I got some help - and I am very thankful for that - ...
1
vote
0answers
70 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 ...
1
vote
0answers
61 views

Are Magura HS33e levers compatible with HS22 brakes?

I plan to convert a bike with Magura HS22 hydraulic brakes to electric. Thus I would like to replace the brake lever by one having the controller output to stop the motor while braking. From my ...
1
vote
0answers
75 views

Differences and effects of brake lever offset

I've seen some flat bar brake levers where the the pivoting plane of the lever blade is offset and not in line with the center of the handlebar's cross section. What's the purpose for such design? ...
1
vote
0answers
77 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 ...
1
vote
0answers
112 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 ...
1
vote
0answers
134 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....
1
vote
0answers
218 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 ...
1
vote
0answers
96 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 ...
1
vote
0answers
88 views

How much clearance do I need for cross levers?

I'd like to put cross (interrupter) brake levers on my drop-bar tourer, but I also like to use a bar bag. There is about 55 mm of space between my bars and the bar bag, measured horizontally. Will ...
0
votes
0answers
61 views

Initial resistance / detent feeling in hydraulic brake

My brake has a up-front amount of pressure it needs before it will then engage. It feels like I'm actuating a clicky button and not a continuously moving brake. What could be causing this?
0
votes
0answers
77 views

My shimano ultegra quick release is not working because the ball bearing inside got lost, can someone help me to identify the size of it?

Can someone help me because my ultegra caliper quick release system is not working because the ball bearing inside got lost (see picture below)
0
votes
1answer
213 views

Why did I lose braking power after hitting a curb?

Recently I hit a curb on my bike. I heard a cracking sound, my front disk brake (cable) felt stiff, and I could feel a lot of resistance from the front wheel. I left it alone for a few minutes, and ...
0
votes
0answers
264 views

How can I determine what postmount I need for my fork / rotor for front and back

I am planning to purchase Shimano Saint BL-M820 + BR-M820 hydraulic disc brake set for my Specialized Stumpjumper Comp and I have no idea what post-mount to buy since I changed my fork and I am pretty ...
0
votes
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 ...
0
votes
0answers
73 views

Is it possible to use cantilever brake pads with caliper brakes?

Pretty much what the title says. I have an unused set of threaded post brake pads designed for V-/cantilever brake mechanisms (DIN EN 14766 if you're curious). Can I safely use these in a more modern ...
0
votes
0answers
42 views

Brakes QHD-6 Tork - how to fit new pads

I have a Claud Butler MTB which is fitted with QHD-6 Tork hydraulic brakes. Whilst these have worked really well for a number of years, recently the rear brakes stuck on whilst I was out. I have now ...
0
votes
0answers
219 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/...
0
votes
0answers
480 views

Clarks Exo hydraulic brakes can't get fluid in

my son has a Carrera Kraken which is fitted with clarks exo hydraulic brakes. he mistakenly cracked off the bleed nipple last week causing the front brake to be pretty much non operational. I ordered ...
0
votes
1answer
5k views

Hydraulic disc brakes stuck on new bike

I pulled the lever on a brand new hydraulic disc brake and the brake won't release. What's up ? The wheel was never removed and a brand new bike.
0
votes
1answer
669 views

Did I purchase the correct brakes for my Huffy bike?

Did I purchase the correct bike brakes for my Huffy bicycle. I just put the back set on the back and no matter how hard I squeeze the brake it is not tight enough to stop bike. If anyone know please ...