Advertise on Bikeforums.net



User Tag List

Results 1 to 16 of 16
  1. #1
    如果你能讀了這個你講中文 genericbikedude's Avatar
    Join Date
    Feb 2005
    Location
    New York
    Posts
    3,542
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Pulling up the star nut

    Hi,

    I've got a persistently loose headset, and when I went to look into it, I find the star fangled nut flush to the top cap. It seems that all of the roadside adjustments that I've made have merely pulled up the star nut.

    Why did this happen, and what can I do to fix it? I'd rather keep the same star nut if possible, as I want to get this bike ridable tonight.

    It's an Aheadset with a Salsa topcap.

    Thanks much

  2. #2
    Senior Member sydney's Avatar
    Join Date
    Jan 2004
    Posts
    9,428
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by genericbikedude
    Hi,

    I've got a persistently loose headset, and when I went to look into it, I find the star fangled nut flush to the top cap. It seems that all of the roadside adjustments that I've made have merely pulled up the star nut.

    Why did this happen, and what can I do to fix it? I'd rather keep the same star nut if possible, as I want to get this bike ridable tonight.

    It's an Aheadset with a Salsa topcap.

    Thanks much
    Starnut may have been installed upside down.

  3. #3
    如果你能讀了這個你講中文 genericbikedude's Avatar
    Join Date
    Feb 2005
    Location
    New York
    Posts
    3,542
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by sydney
    Starnut may have been installed upside down.
    I wish it was that simple. Just to be clear, the star nut was installed with the edges higher than the center, for lack of better terminology.

    Also, I just whacked it back down, then attempted to re-adjust, but got the same problem as soon as I tested the front brakes.

    I'm not using a star-nut setting tool, as I don't have one. While this could theoretically be the source of problems, could it be the source of THIS problem?

  4. #4
    Senior Member sydney's Avatar
    Join Date
    Jan 2004
    Posts
    9,428
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by genericbikedude
    I wish it was that simple. Just to be clear, the star nut was installed with the edges higher than the center, for lack of better terminology.

    Also, I just whacked it back down, then attempted to re-adjust, but got the same problem as soon as I tested the front brakes.

    I'm not using a star-nut setting tool, as I don't have one. While this could theoretically be the source of problems, could it be the source of THIS problem?
    Doubt it. I'd get another star nut.

  5. #5
    如果你能讀了這個你講中文 genericbikedude's Avatar
    Join Date
    Feb 2005
    Location
    New York
    Posts
    3,542
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thanks

  6. #6
    la vache fantôme phantomcow2's Avatar
    Join Date
    Aug 2004
    Location
    NH
    Posts
    6,266
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I agree with syndey. I have never used a star nut setting tool, and ive never had a problem. I use a wooden dowel.
    C://dos
    C://dos.run
    run.dos.run

  7. #7
    The Red Lantern Rev.Chuck's Avatar
    Join Date
    Apr 2003
    Location
    Raleigh NC
    Posts
    5,967
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    First, are you loosening the stem before you make an adjustment? if you don't loosen the stem you cannot make an adjustment.
    Second, is there a couple of mm clearance between the top of the stem and the top of the steerer? The cap may be contacting the steerer.
    Third, does the cap look flared at all on the part that fits into the stem/steerer. Sometimes this will get hung up on the steerer and cause an issue.
    Are you a registered member? Why not? click here to register. Its free, and only takes 27 seconds!
    Help out the forums, abide by our community guidelines.

    I am in the woods and I have gone crazy.

  8. #8
    Bike Junkie
    Join Date
    Nov 2003
    Posts
    238
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    1. Pull out the star nut and press it upside down against a flat surface to spread out the arms.

    2. Clean the inside of the steerer with alcohol

    3. Re-insert the star nut.

    4. Install the stem making sure to check the steerer clearance as Rev.Chuck suggests.

    5. Tighten the top cap until there is no play in the front end and no further

    6. Tighten the stem bolts.

    7. Loosen the top cap bolt a quarter turn to take pressure off of the star nut.

    -s

  9. #9
    Videre non videri
    Join Date
    Sep 2004
    Location
    Gothenburg, Sweden
    My Bikes
    1 road bike (simple, light), 1 TT bike (could be more aero, could be lighter), 1 all-weather commuter and winter bike, 1 Monark 828E ergometer indoor bike
    Posts
    3,202
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Should you really re-use a star nut?
    They're dirt cheap, so I'd get a new one...

  10. #10
    Bike Junkie
    Join Date
    Nov 2003
    Posts
    238
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by CdCf
    Should you really re-use a star nut?
    They're dirt cheap, so I'd get a new one...
    From the original post

    "I'd rather keep the same star nut if possible, as I want to get this bike ridable tonight."

  11. #11
    Senior Member Brian's Avatar
    Join Date
    Nov 2004
    Location
    Between the mountains and the lake.
    My Bikes
    8 bikes - one for each day of the week!
    Posts
    16,745
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by slider
    From the original post

    "I'd rather keep the same star nut if possible, as I want to get this bike ridable tonight."
    I guess we all missed that part. Your choice to make your bike unsafe. I suggest a Headlock by Azonic, or similar item. I don't use star nuts anymore.

  12. #12
    Senior Member capwater's Avatar
    Join Date
    Dec 2004
    Location
    Quahog, RI
    My Bikes
    Giant TCR Comps, Cdale R5000, Klein Q-Pro, Litespeed Siena, Piasano 105, Redline Conquest Pro, Voodoo Bizango, Fuji Aloha
    Posts
    1,509
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Never used a setting tool, made one for about a buck at Home Depot and pounded it to the correct depth with a socket. If you totally hosed up the orientattion to the steerer tube you wouldn't be able to screw in the bolt anywhere near straight. Anyone who has ever installed the star nut will realized there is no way in hell that thing should back out, it's strictly a one way road. Bizarro thought, not sure if all these parts came together, but could you possibly have a 1" nut in a 1 1/8 steerer? Bottom line, get a new star nut and end your frustration.

  13. #13
    Bike Junkie
    Join Date
    Nov 2003
    Posts
    238
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Expatriate
    I guess we all missed that part. Your choice to make your bike unsafe. I suggest a Headlock by Azonic, or similar item. I don't use star nuts anymore.
    Starnuts serve no purpose beside tightening the headset. Once the stem bolts are tight it just sits there. In no way would re-using a star nut be unsafe.

    -s

  14. #14
    ÖöÖöÖöÖöÖö Dannihilator's Avatar
    Join Date
    Oct 2002
    Location
    Annandale, NJ.
    My Bikes
    2014 Surly Steamroller, 1977 Puch Pathfinder
    Posts
    18,787
    Mentioned
    20 Post(s)
    Tagged
    1 Thread(s)
    If pressed back in numerous times, the starnut will wear out; but that is numerous times though.
    Strike like an eagle and sacrifice the dove.
    Words and Stuff.

  15. #15
    如果你能讀了這個你講中文 genericbikedude's Avatar
    Join Date
    Feb 2005
    Location
    New York
    Posts
    3,542
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I just got a new star nut and solved my problem. Message here: aheadset parts all suck. This is the second aheadset star nut that I've replaced in my year-long tenure as a bike pseudo-mechanic. Next bike I build up is getting a chris king.

  16. #16
    Back in the Sooner State
    Join Date
    Aug 2002
    Location
    Norman, OK
    Posts
    2,572
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    You're still going to have to use a star nut with a King headset. I've never had to replace one unless I got it started so screwy that I had to pound it out the bottom of the steerer and break it out. But a King headset will probably outlive you, so it's a good way to go.

    Edit: My aheadset still works great, and it's from 1996. They aren't King, but they don't suck.

Posting Permissions

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