Questions tagged [cable]

Bicycle brakes and shifters use Bowden cables to transmit braking/shifting forces from the hand controls to the appropriate place.

Filter by
Sorted by
Tagged with
2
votes
0answers
68 views

Road bike shifter cable breaks too often: Shimano ultegra 10 [duplicate]

My rear derailleur shifter cable just broke for the third time in two years 5000 miles/ 8000km. I was lucky this time. It broke a mile from the end of a long ride. What am I doing wrong? Are there ...
6
votes
1answer
541 views

Gear shifting is good enough after 6 years. Does that mean I don't need to replace my cables?

My road bike gear cables have never been replaced, they are 6 years old now. The shifting at the back needs at tune up now and then, more and more frequently as time goes. But once it's done the ...
12
votes
3answers
3k views

Why do I constantly have to re-index gears?

I've got a road bike with a high end 11 speed groupset that is about 3 years / 30,000 km old. Chain and cassette have both been replaced recently (i.e. 500 km ago). What I'm experiencing is a constant ...
2
votes
2answers
89 views

Shifting cable maintenance/swap with internal cabling on Cube nuroad

I need some guidance on how to replace the shifting cable on a Cube nuroad with its internal cable routing. I prefer not to replace the outer cables nor to remove the hydraulic hose. The hydraulic ...
2
votes
1answer
144 views

Shimano RD-R7000 cable cut into thread?

That gap/cut in the hollow screw of the cable mount is not supposed to be there, right? If so, is this a typical defect? The hollow screw is pressed into the derailleur body and not replaceable, so ...
4
votes
3answers
813 views

Shifter cable ruptured near the inner end in ST-R7020 - usual defect?

Is is a shifter cable ruptured/torn near the inner end a usual defect with the ST-R7020 shifter or alike? Some words on the symptoms when this defect happened (might help others with diagnoses): ...
2
votes
3answers
183 views

"Non-Aero" cable routing with "Aero" brake levers

Modern "Aero" brake levers, with their long bases and big hoods have some pretty significant ergonomic advantages over traditional levers. Personally though, I hate having to tear off my bar ...
-2
votes
1answer
288 views

Apparently too much rear derailleur cable pull

I have a Deore XT RD-M761 GS medium cage derailleur on my touring bike that seems to move too much per shift. It shifts the chain on a 11-30 8-speed cassette with chainrings being 36/48 and the ...
5
votes
4answers
405 views

Mechanical Ultegra's R8000 right-mech cable failure

On my Giant TCR Advanced SL I have mechanical ultegra R8000 groupset and every 7/8 thousands kilometers the cable constantly breaks(usually it should happens every 20 thousands kilometers). It ...
3
votes
0answers
58 views

Sourcing cable guide clamps - for multiple cables

I'm looking for a cable guide clamp (for loss of a better word), but struggling to find any suitable ones online (similar style to below). It is the component which you use to hold a brake/shift ...
4
votes
1answer
170 views

How should exactly the brake cable be fixed to V-brake caliper?

Regarding the V-brake calipers, where the cable is tightened with a screw: Should the cable go between the head of the screw and the washer (1), or should it go between the screw head and the body of ...
-1
votes
1answer
224 views

Is it illegal to cycle with one brake? [closed]

After refurbishing my mountain bicycle I have discovered I need a new cable for my rear brake. My front brake works perfectly fine and that is the only one I use. I will be getting the rear brake ...
2
votes
0answers
57 views

Left shifter is not catching/gets stuck when there is cable tension

I need help with my left shifter. When I have the cable attached to the derailleur and have even the slightest tension applied, the shifter won't shift to the largest cog (I have double front ...
5
votes
1answer
158 views

Shifter cable cut deep groove into the rear derailleur casing

I have an old Shimano RD-M760 DEORE XT Rear Derailleur, where shifter cable cut a deep groove into the guiding steel tube. Here is a picture: Is that tube replaceable? I think that groove is a ...
0
votes
1answer
70 views

Cable head is too small

when I came to change the shifting (gear) cable on my claude butler bike I found that the original cable has a slightly bigger head(nipple) than the replacement cables I have-3.9mm compared to 3.5mm ...
6
votes
1answer
137 views

How much can bike shift cables spool, and over what radius?

Some shifter designs have become known for causing broken cables, anecedotally because they're causing too much repeat spooling and unspooling over too tight a radius. For example, broken cable heads ...
2
votes
3answers
760 views

Why does the rear brake bowden have no housing below the frame of the bike?

I observed that the bowden of the rear brake calipers runs "naked" below the bike frame. (Also the gear shifting cables, but let's focus on brake cables for this question.) (I.e. the section ...
6
votes
3answers
637 views

What is MTB/roadbike specific in brake cables?

Basically as the title says. Why won't a "roadbike" bike cable fit into an MTB, or vice-versa? Consider this one. What would happen if this was mounted in an MTB (or any other kind of bike)?
2
votes
1answer
346 views

Anyone seen a hollow crank spindle cut through by an internally-routed derailleur cable?

I just want to share a recent observation, but I have to pose it as a question. A person showed me an FSA Gossamer 30mm hollow crank spindle broken into 2 parts. The break looked almost as good as a ...
8
votes
11answers
27k views

What is a good replacement for a cable end cap?

I was adjusting the tension of my front derailleur cable and managed to pop off the cable end cap. The cable is now quite frayed at the end and I think it would be difficult to attach another cap. ...
7
votes
3answers
4k views

Can you buy bulk shifting/brake cable for road bikes?

Is it possible to buy bulk amounts of shifting/brake cable for road bikes? It would be nice to just have a spool of wire that you run onto your frame and then cut off only as much as you need. A ...
4
votes
3answers
498 views

Replacing a lost disc brake pinch bolt

While replacing the cable for my front disc brake, I lost the bolt and plate that attaches the cable to the calliper. In this Park Tool guide, they call it a 'pinch bolt' — labelled E in the image ...
3
votes
2answers
108 views

Why is this STI shifter cable corkscrewing?

I have a roadbike with an older Shimano 105 set of brifters. The left hand / front shifter has always had problems getting the chain to the big ring, to the point I often have to dismount to reset ...
4
votes
4answers
612 views

Front derailleur cable hits path of pedal

The front derailleur cable is on the path of the pedal. Derailleur cable is in the path of the pedal (right of picture): The amateurish solution of pulling it back with a loop requires a solution ...
4
votes
1answer
1k views

How to replace hub motor cable in e-bike?

The hub motor wires are cut from near the axle and looks like I can't repair it without completely replacing it. The motor is similar to this one on Ali Express. I failed to open the motor because ...
1
vote
1answer
141 views

Replacing an ebike's cable disc brakes with hydraulic disc

I have a Viking Gravity 250w 24v ebike. I'm just wondering if I can replace the braking system with a hydraulic type and what would happen to the wired braking safety feature? Would I have to retrace ...
7
votes
3answers
747 views

How to retrieve broken off end of gear cable from inside Shimano 105, 11 gear, lever?

The gear cable was badly frayed in the handle system, where it bends through 90 deg. I had to cut it to remove the cable...but in doing so, the tip with the cable end (about 10mm long), has moved on ...
-1
votes
1answer
85 views

What is this hardware inline with the brake cable?

The brake caliper is an Avid BB7_MTN, but there seems to be some kind of additional element inline with the brake cable. From what I can gather looking at the picture, there's an electric cable coming ...
2
votes
1answer
418 views

Where can I find a Shimano cs50 stopper fixing bolt?

Somehow I lost a single 'stopper fixing bolt' on my down tube cable stop. I have a set of Shimano sm-cs50 outer down tube cable stops, and I don't want to buy new ones because I only need one bolt. ...
0
votes
1answer
358 views

Brompton cable & housing replacement

What type of cables & housing should I buy to replace them on my 2016 M6R Brompton? I've put a lot of tough miles since I bought my Brompton, and one of my shifting cables finally frayed and fell ...
5
votes
2answers
136 views

Data on cable lubricant

Chain lubrication is a popular topic. Perhaps for this reason, it is possible to find data for chain friction and chain lubrication. Some of the results of the research are quite interesting. I'm ...
1
vote
1answer
140 views

Shifter won't click and cable doesn't move

My front gear is set on the smallest gear then the shifter suddenly doesn't click. I also see no cable movement from the front derailleur. Here is the link for the vid: https://imgur.com/ZncNh70
1
vote
1answer
80 views

What type of lever is this cable for?

I recently bought a rear brake cable for my 60s era Schwinn: I was expecting it to have a lever interface that looks like: But they are clearly different: I was browsing eBay for another cable and ...
4
votes
1answer
103 views

Shift Cable for 1963 Schwinn w/Sturmey Archer Shifter

This is the shifter on my 1963-64 Schwinn Racer: This is the old cable: I'd like to replace the cable and found this: It's hard to tell what the cable ends look like inside the packaging but is ...
3
votes
3answers
98 views

Shift lever tight when cable clamped in derailleur, adjustments seem futile

I have a 2020 Giant Trance 2 I purchased new at the beginning of June 2020. Recently I had to replace my shifter cable (I broke a ferrule and the cable was fraying and very short, so I figured the ...
4
votes
1answer
153 views

What is the plastic inside this barrel adjuster, and is it okay to be worn?

I'm replacing the brake cables (inner / outer) on my ~2 year old bike, and noticed that there is a piece of hard plastic tubing (2–3mm diameter) inside the metal part of the barrel adjuster that feeds ...
10
votes
3answers
2k views

What's the strongest way to bond a cable stop to an steel frame?

I have a steel single speed bike and want to add a rear brake. All is good expect there is no cable stops on the top tube. I want to bond two cable stops to the under side of the top tube.
3
votes
1answer
439 views

Replace vintage barrel nipple Shimano shifter cable

My West German bike has an old friction shifter. The shifting cable snapped and I discovered the nipple is barrel shaped but horizontal, much like a MTB brake cable, but smaller. I can't figure out ...
5
votes
3answers
166 views

What do you call the plastic bit that mounts brake cable housing to dedicated frame mounting spots?

I lost a couple and have no idea what to search for online.
4
votes
1answer
98 views

Post head-on crash w/ another bike, shifters no longer shift

Hi everyone on bicycles StackExchange, I had a head-on crash with a drunk guy who rode his bike into mine and since both shifters stopped shifting. the right hand shifter clicks but does absolutely ...
5
votes
2answers
798 views

Frayed cable inside front derailleur

I noticed today that my the cable controlling my front derailleur is beginning to fray. Hoping to get this great group's thoughts on the situation. It's a Shimano 105 2x11. Bike has about 150 miles on ...
7
votes
6answers
7k views

What tools do I absolutely need to replace brake cables?

I'm happy with the job I did replacing the drivetrain on my road bike, and I'm ready to tackle replacing the brake cables. Unfortunately, I did a little research and it's been suggested that I need a ...
1
vote
1answer
207 views

V brake tension adjusted by bending a wire

enter image description hereI have v brakes with a stiff wire which you bend to adjust the release tension, as opposed to turning a screw. I love this system, it's such an instinctive way to adjust ...
7
votes
1answer
248 views

Shifter cable types for Gripshift

I am changing the shifter cable on a bike with grip shift. I heard the cable casing is different than other types. Is the cable different?
4
votes
2answers
666 views

Mountain bike crank hits derailleur cable

Just bought my first bike and it was put together by the store. I was wondering if this little cable/wire is okay, it's hitting my pedal every time I’m riding. It doesn’t really bother me, but I don’t ...
2
votes
1answer
155 views

Are rear derailleur cable intervals equal?

On one occasion in the past I paid attention to get the rear derailleur to be "just right". On eight gears on an MTB, I would get gears 1-2-3 and 5-6-7-8 to be perfect (minus the chain rub on one end ...
1
vote
3answers
518 views

Debugging an FD problem through three visuals

The front derailleur cable is as taut as I can get it. To attach the cable with as much tension, it's first necessary to understand the inside of the barrel adjuster. And the H limit screw on a ...
3
votes
3answers
1k views

Front brakes need to be further apart to fit the front wheel through

My new bike has arrived boxed and partly built. The manual is generic and unclear. The front brakes need to be widened to fit the wheel, it says to 'disengage the cable guide tube from it's yoke'. Not ...
2
votes
1answer
147 views

Seating the rear derailleur cable housing

Unpacked road bike. Assembly is simple enough, except that the rear derailleur cable housing is not in its groove (I'm sure there is a specific term). Here is a picture. No matter how much I tug (...
0
votes
3answers
97 views

Brake cable rubbing seat post

I am building a tandem and I can run the rear brake and shifter cables three ways. I can run cable housing the whole way. Since it's really far, that's a lot of housing! And I don't think it would ...