All Questions
100
questions
1
vote
2
answers
56
views
Which brake levers and brake calipers to replace Sram s-series HRD700 (postmount)?
I own a Giant TCX SLR 1 from 2014, with Sram s-series HRD700 brakes (post mount right?) and 10 speed sram force transmission. Discs are 140mm rear and 160mm front.
My brakes are completly gone and I ...
- 13
0
votes
1
answer
46
views
Replacing pivot bolt on Shimano Sora caliper brakes
first time posting. I've lurked for years and have found answers to a ton of questions, but can't seem to find a discussion on one specific thing. I have a 1980s Peugeot Elan—I believe from scouring ...
2
votes
1
answer
129
views
Which brake arms of Shimano XTR M900 go in front?
The Shimano XTR BR-M900 Cantilever brake arms come in two different lengths. Which go in front, the long ones with the stamped "F" or the shorter ones?
- 733
2
votes
2
answers
142
views
Standard oil grease as Shimano Roller Brake grease short-term replacement
I am currently in the process of cleaning up the rear axle from dirt and excessive grease, legacy of the previous owner. I will be replacing a ball bearing and few other small components, but would ...
- 21
4
votes
3
answers
845
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
4
votes
3
answers
185
views
New V-brake arms don't spring back
I installed new V-type brakes on my bike, which is the same type of brakes as it previously had.
When I tighten the single bolt that holds the brake arm, the arm does not spring back.
If the bolt is ...
- 101
2
votes
0
answers
95
views
Cable housing end cap for BR-M375
I replaced the no name brake calipers on an entry-level ebike for Shimano BR-M375. The cable housing for the rear caliper was a bit too long, so I cut off a few centimeters. Then, I put a new 5 mm end ...
- 4,159
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
5
votes
1
answer
392
views
Rear brake cable rubbing (internal routing), what am I missing?
I just bought a used bike and it is my first bike with internally routed cables. I felt that rear brake is not smooth and feels like the cable is rubbing against metal so I am trying to replace it.
I ...
1
vote
1
answer
145
views
Roller Brake squeeking, even after body replacement
I have a Bakfiets with a roller brake system from Shimano (BR-C6000-F-DX).
The Front started making squeaking noises in the winter, so I bought the special Shimano Braking Lube, opened the brake, ...
- 574
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
2
votes
3
answers
1k
views
Is it okay to use acrylic paint on hydraulic shimano brake levers?
I got a new hardtail 2 months ago and over the past few days I've been thinking of ways to make it "my own."
I thought of painting a design on the brake levers with acrylic paint but am not ...
6
votes
1
answer
3k
views
How to interpret Shimano compatibility chart?
How does one interpret the delineation of horizontally-aligned boxes on the Shimano compatibility charts? Below is a screenshot (with added blue numbering) for discussion purposes.
For example, why ...
- 265
0
votes
1
answer
119
views
Which Banjo bolts do I need for Zee M640 calipers?
I've just ordered a set of Zee M640 calipers to replace the old BR-M596 2 piston calipers on a bike I bought recently.
While looking for other parts I need I noticed that the calipers don't come with ...
- 1
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
5
votes
2
answers
218
views
Dual pivot rear brakes: Right pad in lowest position still too close to tire
I have dual pivot brakes on my Shimano 105 road bike. The wheels are Shimano RS010's.
For some reason, the right pad on the rear brake is too high vertically, it's basically hitting the tire, but it's ...
- 185
3
votes
2
answers
2k
views
Shimano GRX Hydraulic Disc Sub Brake Levers with 105 groupset
The GRX groupsets seem to be compatible with common road groupsets (Tiagra, 105, Ultegra) which was also pointed out in this answer. Furthermore, a brief news article by Shimano states that the brake ...
- 151
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
5
votes
1
answer
324
views
Brake cable reach
On my 2016 Giant Defy with Shimano 105 shifters I am finding it very difficult to reduce the reach on my brake levers and they need pulling almost to the handlebar to brake. Is it possible to reduce ...
- 53
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
0
answers
179
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
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
4
votes
1
answer
87
views
M8000 lever blade fit a m785 lever?
I bent my lever blade on a m785 lever and was wondering if a m8000 lever blade would fit as I can find one of them but not a m785 lever blade. The reason im asking is because the m785 blade says "...
- 41
5
votes
3
answers
3k
views
Mechanical Shimano Deore Disk Brake - How to fix lack of bite/grip
I have a frustrating issue with my MTB and want to ask how I can go about actually diagnosing this issue.
I have a MTB Shimano Disk brakes. These are mechanical and one pad is pushed into the rotor ...
- 174
4
votes
1
answer
655
views
Is it safe to install these V Brakes? Arms don't sit flush with bosses
Replacing my old V Brakes, got sold some Shimano BR-T4000s.
What I found is they don't sit quite flush on the bosses. There's an internal ring that's a bit larger, that ring is just a bit deeper on ...
- 41
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
0
votes
1
answer
403
views
replace shimano st-ef-41-l with shimano alivio left shift
My shifter st-ef41 is broken the only available shifter is the Shimano alivio or the Shimano acera. please advise Asap
thanks
3
votes
2
answers
6k
views
Very narrow gap between pad and brake rotor
I have just retired my Tektro brakes (13 years of service) and replaced with a pair of cheap Shimano MT200.
I have a problem with extremely narrow gap between the disk and pads. The gap is so narrow ...
- 2,857
4
votes
2
answers
1k
views
Should there be play in rear brake
My rear wheel can move about an inch when the brake is completely locked. The movement is in the connection between the hub and the disk. As you can see in the picture below, the disk is held to the ...
- 321
3
votes
2
answers
2k
views
Shimano GRX lever with cantilever brakes
Will Shimano GRX levers work with cantilever brakes? Related question here but answers more about shifters.
- 65
5
votes
2
answers
996
views
Too much Travel when installing Mechanical Disk Brake
I am replacing the cable for the rear mechanical disk brake on my brothers MTB, because it is all chewed up. Now when loosening the cable on the rear brake (barrel adjuster on lever and brake all the ...
user53407
0
votes
2
answers
456
views
105 BR-5500 an improvement over Sora BR-3400?
I'm currently overhauling a bike with a Shimano Sora 3400 groupset. I've replaced most of the parts with Sora 3500 (notably not the brake levers -- still 3400) and am interested in buying some nicer ...
1
vote
1
answer
234
views
Shimano M355 part broken
Was riding my bike over a jump when i lost control and bailed. This led to a tiny part on top of the brake lever to snap and come off. Cant find any details on the part and its not on any diagrams or ...
- 11
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
0
votes
0
answers
568
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 ...
10
votes
4
answers
5k
views
Will an Shimano M8000 brake lever blade fit a M8100?
Will an Shimano M8000 brake lever blade fit a M8100? I broke my left blade, it's a Shimano XT M8100. I can only seem to find the replacement M8000 part. I don't want to replace the whole unit, seems ...
2
votes
1
answer
936
views
Threaded bleed port - 105 7020 shifter
In attempting to bleed my Shimano 105 hydraulic disc brakes, I seem to have threaded the bleed port so the screw no longer tightens. Screw is fine in the other shifter, and same issue when using screw ...
2
votes
4
answers
6k
views
Shimano BR-RS505 brake caliper retainer screw stuck
My bike has a set of Shimano BR-RS505 hydraulic brakes and the rear pad axle, datasheet item 10, just won't budge.
The flathead screw stripped a little when I tried to release it and I didn't go any ...
- 21
5
votes
1
answer
198
views
Modify M6000 brake caliper?
I am attempting to fit Shimano Deore M6000 brakes to my 2017 Trek Stache. The rear brake contacts the frame near the bleed port and keeps me from being able to fully align the caliper to the disk.
...
- 101
1
vote
1
answer
2k
views
On Shimano disk brakes, are both pads supposed to move?
I have Shimano disk brakes (cable operated, no hydraulics), they are still pretty new.
I noticed that under braking, only one of the brake pads moves inward.
Is this how they are supposed to work? ...
- 327
2
votes
1
answer
3k
views
Shimano hydraulic brake loses pressure
I recently changed the brake pads on my Shimano 105 (ST-R7020), and when pushing the pistons back, I felt a "pop", and the pistons moved back with no resistance at all.
After using the bike for a ...
- 81
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
1
vote
1
answer
427
views
Dura Ace 7800/7900 vs 9000
I have Dura Ace 9000 mechanical shifters and I'd love to have hoods that aren't black. The only product I've found are Hudz but they only fit 7800 and 7900. Obviously there was enough of a change ...
- 13
1
vote
2
answers
798
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 ...
- 11
1
vote
0
answers
106
views
Small part for Shimano 105 brakes [closed]
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 ...
- 161
2
votes
2
answers
3k
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 ...
- 3,722