Advertise on Bikeforums.net



User Tag List

Results 1 to 15 of 15
  1. #1
    Senior Member Rider98Glide's Avatar
    Join Date
    Aug 2010
    Location
    South of the Katy Trail
    Posts
    111
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    UGH!!! Headset Adjustment HELP!

    Ok, this is starting to drive me crazy. 2010 Quick 4 I put on an adjustable riser and now cannot get the shimmy out of the front end! Before you tell me to loosen the stem bolts and retighten top cap bolt-I have done that many times already. Just got on Youtube and it looks so easy. They are showing the problem I have(little shake in front end-forks etc.) and it is so simple to fix only it DOES NOT FIX IT...GRRRR! Bike is practically brand new. Any ideas? Is the top cap preventing headset bolt from doing its job as causing it to tighten before it should maybe? Thanks!
    '10 Cannondale Quick 4-main ride
    '10 Trek 7.2 FX WSD-Wife's
    '08 Trek E7-Wife's
    '08 Jamis Explorer 1
    '07 Gary Fisher Tarpon

  2. #2
    Senior Member
    Join Date
    Aug 2005
    Location
    Pittsburgh, PA
    My Bikes
    '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
    Posts
    25,419
    Mentioned
    5 Post(s)
    Tagged
    0 Thread(s)
    Take off the top cap and look to see if the steerer is at leas a couple of mm below the top of the stem. If the steerer is flush, you cannot adjust the headset. Either add another spacer under or above the stem.

  3. #3
    Senior Member
    Join Date
    Apr 2009
    Location
    New Rochelle, NY
    My Bikes
    too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
    Posts
    20,512
    Mentioned
    45 Post(s)
    Tagged
    1 Thread(s)
    Quote Originally Posted by HillRider View Post
    Take off the top cap and look to see if the steerer is at leas a couple of mm below the top of the stem. If the steerer is flush, you cannot adjust the headset. Either add another spacer under or above the stem.
    +100

    99% percent of the time that a headset doesn't adjust, it's because the top cap is bottomed against the top of the steerer and cannot push the stem or spacers lower to set the bearing.
    FB
    Chain-L site

    An ounce of diagnosis is worth a pound of cure.

    “Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin

    “One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN

    WARNING, I'm from New York. Thin skinned people should maintain safe distance.

  4. #4
    Senior Member
    Join Date
    Aug 2009
    Location
    North of Boston
    My Bikes
    Kona Dawg, Surly 1x1, Karate Monkey, Rockhopper, Crosscheck , Burley Runabout,
    Posts
    1,815
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quick release tight? Do you have the head tube faced? It needs to be true and free of excess paint. And check spacers.

  5. #5
    Domestic Domestique UnsafeAlpine's Avatar
    Join Date
    Dec 2007
    Location
    Michigan
    My Bikes
    Brand New Old Catamount! Schwinn Homegrown, Specialized FSR, Salsa Vaya, Salsa Chile Con Crosso
    Posts
    1,736
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Leebo View Post
    Quick release tight? Do you have the head tube faced? It needs to be true and free of excess paint. And check spacers.
    If he just replaced the stem, it's likely that the head tube is ok and the headset is seated correctly.

    I vote for spacers.

  6. #6
    The Rabbi seely's Avatar
    Join Date
    Apr 2004
    Posts
    4,949
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Yeah, I'm guessing the top cap is bottoming out on the steering tube. The stack height of the new stem is likely different and could very well require an additional spacer, like a 2-5mm, to keep the cap from bottoming out when tightened.
    commuter turned bike mechanic turned commuter (also a Velocity USA employee, but this is my personal account)

  7. #7
    Senior Member
    Join Date
    Jan 2012
    Location
    Spokane, WA
    My Bikes
    Specialized Sequoia Elite/Motobecane Fantom Cross Team Ti/'85 Trek 520
    Posts
    2,227
    Mentioned
    4 Post(s)
    Tagged
    0 Thread(s)
    I had the same exact problem and like the above posters, it turned out to be that I had no gap between the top of the steerer tube and the top of the spacer. Replaced the spacer with a taller one and I was able to tighten it up perfectly.

    Before i replaced the spacer, i was able to tighten it down and it seemed to take out the slack but after a test ride, the shake would be back in the tube.

  8. #8
    Senior Member
    Join Date
    Aug 2005
    Location
    Pittsburgh, PA
    My Bikes
    '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
    Posts
    25,419
    Mentioned
    5 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Leebo View Post
    Quick release tight?
    ??

  9. #9
    Senior Member
    Join Date
    Aug 2009
    Location
    North of Boston
    My Bikes
    Kona Dawg, Surly 1x1, Karate Monkey, Rockhopper, Crosscheck , Burley Runabout,
    Posts
    1,815
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Front end shimmy could be a lot of things. This so called exact science of interwebs- remote- diagnostics- with no photos stuff.

  10. #10
    Senior Member
    Join Date
    Sep 2004
    Location
    boston, ma
    Posts
    2,801
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    threadless steerer tube extenders don't work well if the star nut is not straight even if you have the proper amount of spacers

  11. #11
    Senior Member Looigi's Avatar
    Join Date
    Dec 2010
    Posts
    7,142
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    As with most things, it's better to understand how something works and then ensure it's working the way it's supposed to rather than blindly aping a procedure.

  12. #12
    Senior Member
    Join Date
    Aug 2005
    Location
    Pittsburgh, PA
    My Bikes
    '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
    Posts
    25,419
    Mentioned
    5 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Looigi View Post
    As with most things, it's better to understand how something works and then ensure it's working the way it's supposed to rather than blindly aping a procedure.
    Correct but it's worthwhile to check for obvious and frequent causes first before looking for obscure ones.

  13. #13
    Member
    Join Date
    Jan 2012
    Location
    Portland, Oregon
    Posts
    42
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Yep. I went through the same issue on a bike of mine. There was not enough space between top cap and steerer tube. Add a spacer and I bet it works fine.

  14. #14
    Senior Member Rider98Glide's Avatar
    Join Date
    Aug 2010
    Location
    South of the Katy Trail
    Posts
    111
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thanks for all the input. Sure enough the riser/top cap is flush with the steerer tube. I will ad a spacer and report back.
    '10 Cannondale Quick 4-main ride
    '10 Trek 7.2 FX WSD-Wife's
    '08 Trek E7-Wife's
    '08 Jamis Explorer 1
    '07 Gary Fisher Tarpon

  15. #15
    Senior Member Rider98Glide's Avatar
    Join Date
    Aug 2010
    Location
    South of the Katy Trail
    Posts
    111
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Happy to say that I was 2mm off and the additional spacer solved my front end problems just like many said it would. THANK U!
    '10 Cannondale Quick 4-main ride
    '10 Trek 7.2 FX WSD-Wife's
    '08 Trek E7-Wife's
    '08 Jamis Explorer 1
    '07 Gary Fisher Tarpon

Posting Permissions

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