Advertise on Bikeforums.net



User Tag List

Results 1 to 10 of 10
  1. #1
    Lint Picker toshi's Avatar
    Join Date
    Nov 2005
    My Bikes
    08 Cannondale Super Six
    Posts
    590
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Hi all,

    I dug into the archives and didn't turn up anything on this: from time to time I hear a sharp clicking, and I am positive it emanates from the rear brake cable ferrule - the first ferrule, closest to the bars, before the cable travels across the top tube towards the seatpost. I can easily reproduce this clicking by steering side to side while the bike is up on a stand. When I place my fingers on the ferrule, the noise vanishes.

    I've tried squirting triflow into/around the ferrule, but this hasn't helped. Should I pull everything off and grease the exterior of the ferrule and the area where it meets the frame? Or is this a sign of a larger problem?

    Thanks in advance!


  2. #2
    is slower than you Peek the Geek's Avatar
    Join Date
    Jan 2005
    Location
    WI
    My Bikes
    Gunnar Sport, Marin Pine Mountain, Gunnar Ruffian, Gunnar Roadie, BMC Fourstroke, Salsa Vaya
    Posts
    1,486
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Is the clicking caused by the ferrule striking the frame? If so, I wonder if putting a cable "doughnut" or two on there might solve your problem.
    Proud supporter of the Chippewa Off-Road Bike Association (CORBA)
    www.chippewaoffroad.org


  3. #3
    hello roadfix's Avatar
    Join Date
    May 2003
    Location
    Los Angeles
    My Bikes
    thank you for asking
    Posts
    18,502
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I don't think he's referring to the cable 'pinging' the top tube. If that's the case those donuts definitely help.

    Try securing the cable housing against the top tube just ahead of the cable stop with a zip tie and go ride and see if it helps before exploring further...
    Last edited by roadfix; 02-24-06 at 11:33 AM.
    .cinelli.olympic.surly.long.haul.trucker.kona.ku.surly.steamroller.
    .litespeed.classic.litespeed.firenze.bianchi.pista.dean.colonel.plus.more.

  4. #4
    It's true, man.
    Join Date
    Aug 2005
    Location
    North Texas
    My Bikes
    Cannondale T1000, Inbred SS 29er, Supercaliber 29er, Crescent Mark XX, Burley Rumba Tandem
    Posts
    2,727
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    how about a donut between the ferrule end and the inside of the cable stop to snug it up a tad?

  5. #5
    Lint Picker toshi's Avatar
    Join Date
    Nov 2005
    My Bikes
    08 Cannondale Super Six
    Posts
    590
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thanks for the feedback guys. The Fixer's right, it's not an issue of the cable pinging against the top tube (I've got donuts up there anyhow). And, the ferrule is not contacting the frame in any way that I can discern.

    After looking at it more closely, it appears that the cable is actually rubbing up against the housing when it is moved from side to side (i.e. during a turn). It almost feels like there is a frayed end in the housing that it catches on, then jumps off. I can feel it when I grasp the cable between my fingers and move it back and forth at the housing exit. That may be the root of it all.

    While googling about this, I found a tidbit from jimlangley.net:

    Cable housing sections can click as you turn the handlebars to steer.
    Solution: Lubricate the point where the housing ends enter the frame stops. Often, the end of the cable housing has a metal or plastic cap (called a "ferrule"). This can move when you turn the bars and make clicking noises. The end of the housing can also move inside the ferrule and make noise. Usually, applying a few drops of medium-weight oil to the ferrule, the housing and the frame stop will stop the clicking.

    (http://www.jimlangley.net/wrench/keepitquiet.html)

    I'm going to try this when I get home this evening. But I have a feeling the housing might need to be replaced or at least smoothed out inside, since I assume there should be no rough edges. I imagine that when the bike was assembled the housing wasn't cut smoothly (or it wore away and frayed during usage).

  6. #6
    hello roadfix's Avatar
    Join Date
    May 2003
    Location
    Los Angeles
    My Bikes
    thank you for asking
    Posts
    18,502
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by truman
    how about a donut between the ferrule end and the inside of the cable stop to snug it up a tad?
    You'll end up with mushy brakes...
    .cinelli.olympic.surly.long.haul.trucker.kona.ku.surly.steamroller.
    .litespeed.classic.litespeed.firenze.bianchi.pista.dean.colonel.plus.more.

  7. #7
    DocRay
    Guest
    Quote Originally Posted by toshi
    I'm going to try this when I get home this evening. But I have a feeling the housing might need to be replaced or at least smoothed out inside, since I assume there should be no rough edges. I imagine that when the bike was assembled the housing wasn't cut smoothly (or it wore away and frayed during usage).
    The easiest thing to do is just replace the housing and cable.

  8. #8
    Year-round cyclist
    Join Date
    Apr 2002
    Location
    Montréal (Québec)
    Posts
    3,023
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Before you look any further, try a rubber band.

    I suspect that either the brake cable housing or a shifter housing (but most likely is the brake) rattles against the headtube. You might even have a bit of scratched paint to "prove" it. On one bike, I tied a rubber band around the brake cable housing in the vicinity of the head tube. Vibrations stopped.
    Michel Gagnon
    Montréal (Québec, Canada)

  9. #9
    It's true, man.
    Join Date
    Aug 2005
    Location
    North Texas
    My Bikes
    Cannondale T1000, Inbred SS 29er, Supercaliber 29er, Crescent Mark XX, Burley Rumba Tandem
    Posts
    2,727
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by The Fixer
    You'll end up with mushy brakes...
    Yeah, that occurred to me in the shower later that evening.

  10. #10
    Senior Member
    Join Date
    May 2005
    Location
    Ventura, CA
    My Bikes
    Dean, De Rosa, Langster, some old Brit track iron
    Posts
    428
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    From that photo, it doesn't look like the ferrule is seated all the way into the cable stop. You can see the cable coming off the stop at a slight angle. Try to seat the ferrule all the way and if it wont go, try another one or work on it with some emery paper until it slides in.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •