Questions tagged [disc-brake]
Brakes with a disc called a rotor near the hub and calipers that squeeze pairs of pads against that disc.
607
questions
1
vote
2
answers
56
views
Are these Avid BB7 Brake Pads metal or organic?
I have Avid BB7 mechanical brakes.
I would like to know if the pads on my bicycle are metal (or is it called sintered) or organic (rubber?).
I compared the pads on the bicycle to unused metal pads. ...
- 641
2
votes
0
answers
45
views
Installed new rim and hubs. Disc rotor is now rubbing against disc brake mount
The new hubs spacing seemed to be too small for the fork that it now rubs against the disc brake mount. In the picture, I can't even squeeze it in between the mounting point and the rotor.
Looking for ...
- 81
2
votes
0
answers
62
views
Why does my rotor not fit my mechanical disc brakes suddenly
I have a 2021 GT Aggressor with mechanical disc brakes. I bought this brand new from Dicks Sporting Goods so I know it's all original parts. I know that my rear rotor is bent and I purchased the rotor ...
- 1,277
2
votes
1
answer
433
views
How to handle corrosion on brake pads screws on Shimano road bike disk brakes?
Recently I wanted to remove the brake pads of my Shimano 105 disk brakes to check their wear state. When I was about to open the screw which holds them in place I found that some white crust had ...
- 3,961
6
votes
1
answer
372
views
Both disc brakes stopped working after severe weather: No pressure when levers are pulled
I have Shimano disc brakes (pads replaced last year). I cycle frequently enough (approx 3-5 hrs a week). Brakes were previously working without issue. Recently I was caught in some April weather:
day ...
- 193
2
votes
1
answer
168
views
How to diagnose and fix a mechanical disc brake rotor that is bent
I have a 2022 GT Aggressor with mechanical disc brake rubbing on the rear wheel. I tried realignment of the caliper several times and I got the wheel trued. But my brakes still rub in one spot. Does ...
- 1,277
0
votes
2
answers
65
views
brake rotor offset inconsistency
I previously ran a promax 160mm rotor with a BB7 avid brake caliper. My rotor is spent and is not braking correctly. The tech suggested I used a Shimano ice-tech disk. It seems to me that, relative to ...
- 387
1
vote
1
answer
71
views
Brake problems (need adjustment too often)
I've been having problems with my bicycle brakes for not a short time and I've been having it with a couple different bikes. The brakes get loose after 1-2 weeks. I deliver with my bike so I use it 50-...
- 11
1
vote
1
answer
60
views
I can't unscrew the rotor bolts
I have a torx screwdriver but it wasn't meant for bike maintenance use. Actually I had bought it to unscrew the bolts of my owen. However, it sits firmly on the bolts of the rotor but can't unscrew ...
- 2,090
4
votes
1
answer
134
views
Changed the disc brake rotor, now wheel doesn't spin?
I have replaced the tire and the disc brake rotor on my rear wheel and since then for some reasons my rear wheel does not spin.
When I take off the disc brake rotor it freely spins:
https://vimeo.com/...
- 809
6
votes
2
answers
214
views
How to temporarily plug hydraulic brake hoses to route them through frame without leaking fluid
Is there a way to temporarily plug and seal hydraulic disc brake hoses as well as hydraulic dropper post hoses, before installing them or removing them from a frame? The idea is to keep things tidy ...
- 393
4
votes
2
answers
647
views
Disc Brakes disengage when braking, why does this happen?
I have a fairly heavy e-bike and I'm a fairly heavy rider. My bike has mechanical disc brakes, and around 5 months ago I was having an issue where the brakes became useless, as in when I applied them ...
- 43
5
votes
1
answer
422
views
What is the difference between lower end and higher end hydraulic disc brakes?
I have some mechanical disc brakes on a gravel bike that I find almost completely useless at stopping. I tried replacing them with better cable-actuated hydraulic brakes that were widely recommended ...
- 53
2
votes
0
answers
94
views
Are wheels designed for a maximum disc/rotor size?
I'm looking at some new wheels which Shimano describe as "140 mm disc brake rotor compatible". Does this mean they can't handle larger 160mm rotors? If not, why would they make this point, ...
- 2,201
0
votes
1
answer
59
views
Bike Friday Pocket Llama and Magura MT Trail Series 2
I'm new to disc brakes and today I tried to fit a Magura MT Trail Series 2-piston brake to my Bike Friday Pocket Llama frame. However, although I'd be able to attach the caliper to the frame, it does ...
- 1,508