Advertise on Bikeforums.net



User Tag List

Results 1 to 6 of 6

Thread: stripped nipple

  1. #1
    Fresh Garbage hairnet's Avatar
    Join Date
    Apr 2009
    Location
    Los Angeles
    Posts
    10,440
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)

    stripped nipple

    How does the threading of a nipple become stripped while ridding?

    I just got back from ridding and when I was walking my bike I realized the brake was rubbing the rim. I spun the wheel and saw it was way out of true just in one spot. I checked out the spokes and one is completely not tensioned. So I attempted a quick true just to get the wheel somewhere until I can take it to a truing stand. I kept turning the nipple and nothing happened, so I concluded the nipple is stripped.

    [edit] ^^^poor wording, I can turn the nipple but the spoke does not get tensioned.

    I guess I'll take it to the bike shop tomorrow after school, but that means a 14 mile commute basically missing a spoke. Is this ok or should I just take the bus? Anyway, how could this have happened?
    Last edited by hairnet; 05-31-09 at 09:01 PM.

  2. #2
    Old fart JohnDThompson's Avatar
    Join Date
    Nov 2004
    Location
    Appleton WI
    My Bikes
    Several, mostly not name brands.
    Posts
    11,840
    Mentioned
    3 Post(s)
    Tagged
    0 Thread(s)
    Aluminum nipple?

  3. #3
    Fresh Garbage hairnet's Avatar
    Join Date
    Apr 2009
    Location
    Los Angeles
    Posts
    10,440
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    brass

  4. #4
    Senior Member
    Join Date
    May 2004
    Location
    Wilmington, DE
    My Bikes
    2003 Specialized Hardrock, 2004 LOOK KG386i, 2005 Iron Horse Warrior Expert, 2009 Pedal Force CX1
    Posts
    8,767
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    It's possible that the spoke broke at the threads but there is enough of the spoke still inside the unthreaded portion of the nipple that it seems like it's all one piece still.

    If you can open the brakes far enough to ride the wheel, you shouldn't do much harm assuming you don't go hopping any curbs or slamming into potholes (not that you should do that anyway). When I first started out, I did plenty of rides with a terribly tensioned rear wheel and it never fell apart on me.

  5. #5
    use your best eye kenhill3's Avatar
    Join Date
    Mar 2006
    Location
    Olympia, Washington
    My Bikes
    '75 Bertin, '93 Parkpre Team 925, '04 Kona King Kikapu, '05 Bianchi Vigorelli
    Posts
    3,054
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by hairnet View Post
    How does the threading of a nipple become stripped while ridding?
    It has never happened to me.

    Just guessing-

    THAT particular spoke (or even the whole wheel) could have been undertensioned and eventually, after many cycles of loading/unloading, the threads just wore out.

    Have the shop check the entire wheel for suitable tension.
    "I tell you, We are here on earth to fart around, and don't let anybody tell you any different." - Kurt Vonnegut jr.

  6. #6
    Fresh Garbage hairnet's Avatar
    Join Date
    Apr 2009
    Location
    Los Angeles
    Posts
    10,440
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    It's possible, the wheel was a little out of true before. I guess that may have been the spoke that was undertensioned.

    At least I'll still be able to commute with it tomorrow. My only problem is that I have to ride through some less than ideal roads.

Posting Permissions

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