How do you keep your donuts from sliding?
05-10-09, 06:19 PM
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How do you keep your donuts from sliding?
I have the rubber donuts on the rear brake cable along the top tube to keep the cable from banging on the top tube. As I use the brake they slide, and eventually end up bunched together at the seat tube. Is there an easy way to keep them from sliding?
05-10-09, 06:25 PM
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dab of crazy glue?
makes removal a hassle though.
makes removal a hassle though.
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05-10-09, 06:26 PM
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I have never used the donuts on my bikes for this very reason. I use the plastic tubing instead.
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05-10-09, 07:31 PM
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They will naturally migrate to where the cable comes closest to slapping the frame. In other words: The go where they are needed (or if) all by themselves.
05-10-09, 09:32 PM
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Yeah, that's what I was worried about.
What plastic tubing do you use?
Ugh, that means removing the cable. Oh well, I suppose I can do that Thanks.
Actually they naturally migrate to the spot closest to the ground, which in this case is the junction with the seat tube.
I find them to be very functional. When they are in place they work perfectly.
Thanks for the comments. Still looking to see if a better option, but the shrink tubing and replacing with plastic tubing sound like the two best alternatives so far.
I find them to be very functional. When they are in place they work perfectly.
Thanks for the comments. Still looking to see if a better option, but the shrink tubing and replacing with plastic tubing sound like the two best alternatives so far.
05-10-09, 10:38 PM
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I can't remember where I have procured the tubing in the past.
Shrink tubing (unshrunk) would prolly work but it's expensive.
Maybe ask your LBS.
My last build I ended up stripping the insulation off of some electrical wire to get 'tubing'. I remember that I tried a few different ones that I had lying around until I found one that was loose enough for the insulation to slide off easily.
Shrink tubing (unshrunk) would prolly work but it's expensive.
Maybe ask your LBS.
My last build I ended up stripping the insulation off of some electrical wire to get 'tubing'. I remember that I tried a few different ones that I had lying around until I found one that was loose enough for the insulation to slide off easily.
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05-10-09, 11:16 PM
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A little dab of silicone might hold them in place and be relatively easy to trim off if needed. It might even obviate the need for donuts altogether. I'd put some wax paper or something against the frame to keep it from sticking until it's cured though. Maybe plastic wrap.
Thanks for giving me the impetus to think about this. They do the same thing for me that they do for you, and I just stopped putting them on after a while, but I'd really like to silence that cable-whackity.
Thanks for giving me the impetus to think about this. They do the same thing for me that they do for you, and I just stopped putting them on after a while, but I'd really like to silence that cable-whackity.
05-11-09, 01:19 AM
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Continuous cable housing ftw.
05-11-09, 05:34 AM
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05-11-09, 05:47 AM
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I hear you on removing the cable being easy, but clear silicon/rubber cement, if applied properly, seems like it wouldn't even be visible from a couple of feet.
05-11-09, 08:45 AM
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Shimano sells 6' (2M?) lengths of thin plastic tubing intended as liner for brake housing. It costs about $2 a pack and is perfect for covering the exposed sections of bare rear brake cable or exposed derailleur cable for MTBs. Many LBS's have it or can order it. The part number is Y80098100 and is called "Cable Liner" on the package.
I always had the donuts migrate to where they were least effective and this stuff is a great replacement.
I always had the donuts migrate to where they were least effective and this stuff is a great replacement.
05-19-09, 07:57 PM
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Just as a follow-up, a small dab of rubber cement on the brake cable behind the donut seems to work just fine (at least after a few rides). You can't notice it from more than a couple feet away, and it scrapes off easily with a fingernail. Silicon would probably work too, but this is what I had lying around.
05-20-09, 07:27 AM
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05-20-09, 08:13 AM
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Lube the cable where it goes through the donut, this way you don't have to remove the cable cause lets face it, its a b!tch to get back in unless its new.
once you lube the cable place the donuts where you want them.
You may still have to move them back but not as often and its an easy fix for now.
once you lube the cable place the donuts where you want them.
You may still have to move them back but not as often and its an easy fix for now.
05-20-09, 08:21 AM
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05-20-09, 05:44 PM
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+1 
A much simpler, and pretty cheap, alternative to super-gluing those silly little donuts. I change my cables on my custom-hybrid, and I change the donuts, too.
Want to take this to extremes? Which color(s) donuts do you use? Or colors? Or, inn Caada and the U.K. - colours?
A much simpler, and pretty cheap, alternative to super-gluing those silly little donuts. I change my cables on my custom-hybrid, and I change the donuts, too.Want to take this to extremes? Which color(s) donuts do you use? Or colors? Or, inn Caada and the U.K. - colours?
