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Cable Donuts please

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Cable Donuts please

Old 01-24-14, 01:11 AM
  #1  
Gdogpdx
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Cable Donuts please

I just had my brifters replaced and realized I didn't get any cable donuts!! Are there any after the install products or solutions?! I've had them also fall off from old age but haven't ever gone completely naked. Now when I ride I sound like tinkerbell or the ice cream man. Any helpful solutions really appreciated...btw, I'm avoiding having to remove the cable, I know that's an option in the end.
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Old 01-24-14, 01:54 AM
  #2  
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The LBS here has a little drawer with some in it, yours Should too..

PDX you have like 300 bike shops.
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Old 01-24-14, 06:15 AM
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Harbor Freight among others has self fusing silicone tape. Here is a link
https://www.harborfreight.com/1-in-x-...ape-68401.html
You could cut off a strip the size of the doughnut you need, stretch and wind it on, trim excess and in about 30 minutes it will self fuse.

One could also use the liquid black tape, it is much messier and will have to dry but would make a nice durable ball

Rod
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Old 01-24-14, 06:34 AM
  #4  
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+1 on the self-fusing tape, it has many uses on bikes, particularly finishing up handlebar wraps. It does not bleed gooey adhesive like electrical tape and it is available in colors to match or contrast your tape, frame, etc. It only sticks to itself so can be removed cleanly by nicking it with a blade and peeling it off.

Rather than try to make a tiny doughnut around the wire you might consider wrapping it around your frame tube where the wire hits.
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Old 01-24-14, 07:51 AM
  #5  
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Just a quick thought: looking straight down at the edge, slice through a doughnut to the middle at an angle (45 degrees?) and slip it on. The cut ends should spring back and keep it in place just fine. Well, that's my theory... :-)
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Old 01-24-14, 09:00 AM
  #6  
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I find the donuts tend to migrate to one end or the other of the exposed cable leaving the middle free to rattle against the frame. A better solution is to buy a length of housing liner and cut a length of fit over the exposed cable between the housing stops. It protects the frame and stays put. Here is one source:

https://www.jensonusa.com/Jagwire-Black-Housing-Liner
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Old 01-24-14, 09:11 AM
  #7  
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Originally Posted by HillRider View Post
I find the donuts tend to migrate to one end or the other of the exposed cable leaving the middle free to rattle against the frame.
+1.

Maybe your cables need to have some of the slack taken out so they don't rattle against the frame.
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Old 01-24-14, 09:20 AM
  #8  
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Originally Posted by leob1 View Post
Maybe your cables need to have some of the slack taken out so they don't rattle against the frame.
Even drum tight, a long exposed cable run will rattle on a rough road.
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Old 01-24-14, 11:29 AM
  #9  
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If you have any replacement erasers for a mechanical pencil around, use a razor blade to slice it into 3/4 discs, poke holes through the middle with a needle to make them donuts, then thread them onto your cable. Of course that requires taking the cable out of the brake, but you could also try slicing radially to the center hole, putting them on with slice away from the frame, and see whether they stay on or not.

You could also fashion bumpers from Baby-Bel cheese wax, if red matches your color scheme better. Or chewing gum.
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Old 01-24-14, 11:42 AM
  #10  
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None of my bikes have those little doughnuts. I always lose them when i'm working on my bike. Never heard the cables make any noise against the tubes.
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Old 01-24-14, 11:43 AM
  #11  
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The donuts never stay where you want them, they work their way to the ends.
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Old 01-24-14, 11:44 AM
  #12  
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Originally Posted by jim hughes View Post
The donuts never stay where you want them, they work their way to the ends.
Score the cable.
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Old 01-24-14, 11:49 AM
  #13  
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Originally Posted by osteoclast View Post
Score the cable.
?

You're kidding, right?
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Old 01-24-14, 11:56 AM
  #14  
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I know, that sounds like an awful idea. Much better to glue them in place, although you might have to cut the cable off rather than pull it through the housing and reuse it. But cables is cheap, maybe an extra dollar or two per year or two for new cables instead of reused is worth the peace of mind of knowing your donuts aren't moving.
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Old 01-24-14, 12:03 PM
  #15  
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Originally Posted by bobotech View Post
None of my bikes have those little doughnuts. I always lose them when i'm working on my bike. Never heard the cables make any noise against the tubes.
The only noisy cable on most road bikes is the rear brake cable against the top tube. This is particularly a problem on CX style bikes where the cable run is on top of the top tube so riders can shoulder the frame more comfortably. On older MTBs both the rear brake and derailleur cables were often run along the top tube and could make a real racket unless sheathed or "doughnuted".
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Old 01-24-14, 12:08 PM
  #16  
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Originally Posted by jim hughes View Post
?

You're kidding, right?
https://davesbikeblog.squarespace.com...?currentPage=9
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Old 01-24-14, 12:12 PM
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Originally Posted by MNBikeCommuter View Post
Just a quick thought: looking straight down at the edge, slice through a doughnut to the middle at an angle (45 degrees?) and slip it on. The cut ends should spring back and keep it in place just fine. Well, that's my theory... :-)
I like this idea, and if the donuts are rubber, maybe use patch (rubber) cement.
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Old 01-24-14, 12:21 PM
  #18  
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That's putting a groove into housing so an o-ring retainer stays put, but the OP is talking about the little rubbery 'donuts' that slide over exposed cable. You definitely don't want to score the cable.
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Old 01-24-14, 04:50 PM
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Oh I see what you mean. I assumed the OP was talking about a run of bare cable.

Nice blog!
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Old 01-24-14, 04:59 PM
  #20  
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Gosh, I can't tell you how many of those I have thrown away. What a nuisance. Never had a cable rattle. If I could say why, I would be glad to share it with you. It's a mystery. Seems to me they just appeared over the last few years. They were unheard of back in the day. I've never even thought about installing them when I have re-cabled. I know this isn't helpful, and I am not trying to be a boor. I guess I am just suggesting it might not be all that necessary. What I can say is I keep my cables really taut, even on the low tension ends of a derailleur like the small ring on the front and small cog on the back. So that means I have to keep my low limit on the front just a little leftward and on the back a just little rightward. Then the cable tension positions the derailleur, not the limit screw. Maybe that is why mine don't rattle.

Robert
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Old 01-24-14, 05:23 PM
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Yup, cutting the little donuts on an angle works. Add a tiny drop of superglue where the donut is cut and you're all set without messing with the cable.
Been there, done that!
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Old 01-24-14, 06:26 PM
  #22  
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Originally Posted by zonatandem View Post
Yup, cutting the little donuts on an angle works. Add a tiny drop of superglue where the donut is cut and you're all set without messing with the cable.
Been there, done that!
OK, and maybe the superglue will keep them from walking to the ends of the cables. Two problems solved with one drop of glue.
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Old 01-24-14, 10:44 PM
  #23  
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The fuzzy (not the hooky) side of sticky-back velcro strips . . . . cut shapes out and and adhere them to the frame wherever cables want to slap against the frame. Won't damage paint.
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Old 01-24-14, 11:48 PM
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One option that will be functional but not very cosmetic is to use a cable tie-wrap... take it around the cable, zip it up tight and cut the tail off close.

Not pretty, but it will keep the cable off the frame and you won't have to undo any of the hardware.
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Old 01-25-14, 12:05 AM
  #25  
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there are spiral cut cable organizers ,but they tend to be bigger than the perfect size..
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