All Questions
25
questions
4
votes
3
answers
844
views
Replacing hydraulic brake lever
This is my first time dealing with hydraulic brakes.
The front brake on my bike is Shimano BL-M4100 lever with MT410 caliper. I stripped the lever's clamp thread and going to replace the lever with a ...
- 143
0
votes
2
answers
507
views
Mountain bike brake pistons not compressing when brake is pulled
I have a Shimano BR-MT201 Hydraulic Disc Brake on my rear brake. I was replacing the brake pads and accidentally pressed the brake too many times and the piston popped out leaking brake fluid. ...
0
votes
1
answer
613
views
What are the exact dimensions of Shimano disc brake split (cotter) pins?
What are the exact dimensions of Shimano disc brake split (cotter) pins, such as part nr. 25 (Y8DB06100) on BR-MT410 caliper (https://si.shimano.com/en/ev/BR-MT410-4663)?
Looking to buy generic ...
- 405
1
vote
1
answer
532
views
Scratched hydraulic brake hose during install - should I be concerned?
today I was installing brand new GRX brakes into new frame. It was not my first time, I've already build 10+ bikes, I messed up through. I inserted rear brake hose without any issues, I had my guide, ...
- 31
2
votes
1
answer
127
views
Oil stopper of Shimano oil funnel: what's its sharp end for?
Shimano instructs to insert the sharp end of the "oil stopper" to bleed the brakes:
What is this for? I would expect that the oil should just flow from/to the funnel when pumped into the ...
- 1,635
3
votes
2
answers
1k
views
Immense difficulties bleeding a shigura setup
I set up a shigura system with BL-M8000 levers, MT5 and MT4 Callipers and Magura hoses and shimano parts on the lever end. But I couldn't get even a decent bleed on them. I tried a couple of ...
- 203
2
votes
0
answers
284
views
after multiple brake bleed, lever's max stiffness is still close to bar
so after a few bleeds i've done on these Shimano saints, because of new levers replacement, i've found that the rear brake lever, although on max stiffness, goes way further to the bar then the other ...
- 185
3
votes
1
answer
430
views
Problem bleeding Shimano XT brakes
I have a problem bleeding Shimano XT brakes:
The oil can come down if I open the system at the bottom, and the oil drips down. But once I connect the syringe, put the little plastic cup screws on the ...
- 606
12
votes
1
answer
5k
views
How do I rebuild Shimano XTR hydraulic brake levers?
My right brake lever (Shimano BL-M9020 to be specific) has attracted some dirt around the blade pivot area, and some parts look shiny. I suspect the master piston seals are starting to leak. Replacing ...
- 16.4k
0
votes
2
answers
1k
views
Is it normal for a rotor to move when brakes applied (hydraulic)?
I noticed a movement of braking disc when pressing rear brake and watching on rotor. It was moving about half millimeter. Is it normal for rotor to move minimally?
- 1
6
votes
2
answers
2k
views
Is the banjo bolt the same between the Shimano XTR and Shimano Saint rear brake caliper?
Earlier today, I went to install a brand new Shimano Saint caliper in place of an old XTR that's leaking from the pistons, only to find that Shimano doesn't include the banjo bolt...
Do the XTR and ...
- 1,077
5
votes
1
answer
742
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. ...
- 265
2
votes
1
answer
368
views
Clamp width of new Shimano brake levers
Can anyone measure the width of the clamp (the dimension parallel to the bar) of the new XT M8100 12 speed Shimano brake levers?
I want to know the amount of 'bar space' the clamp takes up.
The ...
- 1,305
1
vote
1
answer
150
views
Is master cylinder hydraulic fluid level critical (Shimano)?
I managed to successfully bleed a Shimano hydraulic brake but used an improvised kit instead of the official Shimano one. Since I used a regular syringe instead of the funnel+plunger system which may ...
- 802
0
votes
1
answer
1k
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 ...
- 115