Advertise on Bikeforums.net



User Tag List

Results 1 to 8 of 8
  1. #1
    Senior Member TotalKos's Avatar
    Join Date
    Apr 2002
    Location
    the T-Dot
    Posts
    171
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Help with spokes breaking

    Well I don't know much about truing a tire or spoke tension. Recently (in a bout a month) I have had five or six spoke breaking incidents at times while I'm riding on the pavement, not jumping or anything. I have had them fixed and another one breaks after a couple of days.

    I have an 18" 2000 Kona with Mavic X138 rims w/32 spokes. This bike has been used on pavement, gravel, dirt, and occasionally, mud. I do a lot of easy-on-the-bike riding with a little bit of -hard-on-the-bike riding to break a sweat. I weigh no more than 210.

    Can anyone please tell me the possibile causes of this problem and how I might remedy it so I don't have to visit my LBS every week.

    Do I need new rims? New something else? Hub? Upgrade to 36 spokes? Is it cuz I'm too heavy?

    Please help.
    Tapps

  2. #2
    Senior Member bikerider's Avatar
    Join Date
    Sep 2001
    Location
    Toronto, Canada
    Posts
    376
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Spokes break from fatigue, not overload, so the blame lies with the wheelbuilder. The wheel was most likely not stress-relieved and because so many spokes have broken, you will need to rebuild the wheel. Assuming that the rim is not damaged and that the rim sidewalls are not overly worn then it can be reused. You can also reuse the hub, making sure to follow the same lacing pattern. Find a competant wheelbuilder who will stand behind their work or, even better, pick up a copy of The Bicycle Wheel and learn to build better wheels than the average joe.
    Last edited by bikerider; 09-06-02 at 12:25 AM.

  3. #3
    Senior Member mechBgon's Avatar
    Join Date
    Jul 2002
    Posts
    6,957
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Also, many original-equipment wheels are built with lower-quality spokes. DT-brand or Wheelsmith-brand spokes have a much longer fatigue life than the typical OEM spokes do, so make sure to insist on them when building or having the wheel built.

  4. #4
    Junior Member
    Join Date
    May 2002
    Posts
    19
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I build my own wheels. When I first bought my Giant mountain bike, I had the same problem with spoke breakage. The problem was the spokes. Once I re-buildt the wheel with DT spokes, the problem ended.

  5. #5
    feros ferio John E's Avatar
    Join Date
    Jul 2000
    Location
    www.ci.encinitas.ca.us
    My Bikes
    1959 Capo; 1980 Peugeot PKN-10; 1981 Bianchi; 1988 Schwinn KOM-10;
    Posts
    14,635
    Mentioned
    3 Post(s)
    Tagged
    0 Thread(s)
    Cheap spokes are false economy. Always insist on DT or Wheelsmith!

    The advice about keeping the same lacing pattern when reusing a hub is spot-on. The only time I have ever experienced chronic spoke breakage was when I experimented with a new lacing pattern on an old Campag. Record hub, whose spoke holes had elongated with use and age.
    "Early to bed, early to rise. Work like hell, and advertise." -- George Stahlman
    Capo [dschaw'-poe]: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger, S/N 42624
    Peugeot: 1970 UO-8, S/N 0010468
    Bianchi: 1981 Campione d'Italia, S/N 1.M9914
    Schwinn: 1988 Project KOM-10, S/N F804069

  6. #6
    Forum Admin lotek's Avatar
    Join Date
    Dec 2001
    Location
    n.w. superdrome
    My Bikes
    1 trek, serotta, rih, de Reus, Pogliaghi and finally a Zieleman! and got a DeRosa
    Posts
    17,623
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    To add on to what John E said, aside from
    avoiding cheap spokes, Butted spokes are
    actually stronger than straight guage spokes.
    I'm of the opinion that 14/15 guage spokes are
    about the best thing going.
    Marty
    Sono pił lento di quel che sembra.
    Odio la gente, tutti.

    Are you a registered member? Why not? click here to register. Its free, and only takes 27 seconds!
    Want to upgrade your membership? Click Here.

  7. #7
    Senior Member pat5319's Avatar
    Join Date
    Sep 2000
    Location
    Spokane WA
    My Bikes
    Seven Axiom Ti, Trek 620, Klein Aura x, Masi cylocross (steel). Masi Souleville 8spd, Fat Chance Mtn (steel), Electra Amsterdam (Steel), Bianchi (Japanese) set up as "fixie", Scwinn Triple Bar cruiser,
    Posts
    1,126
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Spokes, like anything else, wear out!!!, not necesarily anyone's fault. When they start breaking- replace them, NOT one at a time. Have your wheel rebuilt with QUALITY SPOKES, like DT or Wheelsmith etc.

    Ride Well Spoken
    Pat
    Pat5319


  8. #8
    Senior Member TotalKos's Avatar
    Join Date
    Apr 2002
    Location
    the T-Dot
    Posts
    171
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thanks all for your help.

    I am going to rebuild the wheel. I will have them both rebuilt at the end of the season, which is coming up toooooo fast over here. I still have a couple months. If I can find this thread later on I will let you all know how it went. Thanks again.
    Tapps

Posting Permissions

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