Advertise on Bikeforums.net



User Tag List

Results 1 to 10 of 10
  1. #1
    Senior Member jberenyi's Avatar
    Join Date
    Dec 2005
    Location
    West Haven, Utah
    My Bikes
    Lynskey Level 3 Custom, De Bernardi SLX, Felt F1C, Burley Duet Tandem
    Posts
    501
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Headset install question

    Just installed a threaded Campy Record headset tonight. The cups went in fine using the proper tool. There is one small section (90 degrees on a 360 degree circle) on the bottom race that I can fit a .010 feeler gage between the cup and headtube face. Is this okay to leave alone or should I remove the cup and have the headtube faced.

    Bottom line: Is there a tolerance for gap between the cup and headtube. Being an engineer, most things in this world have a tolerance but maybe we need zero here.
    Last edited by jberenyi; 01-20-08 at 07:23 AM.

  2. #2
    118AHC "Thunderbirds" 2372ighost's Avatar
    Join Date
    Oct 2005
    Location
    AL.
    My Bikes
    Numerous (wife says to many)
    Posts
    235
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Headsets are not designed to have a gap on any portion. You have either not properly installed it or your headtube needs to be faced.

  3. #3
    Senior Member
    Join Date
    Aug 2007
    Posts
    144
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    2 or 3 jager bombs and she'll face your head tube


  4. #4
    Senior Member jberenyi's Avatar
    Join Date
    Dec 2005
    Location
    West Haven, Utah
    My Bikes
    Lynskey Level 3 Custom, De Bernardi SLX, Felt F1C, Burley Duet Tandem
    Posts
    501
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    That's gross. Ebay should have removed the pic for sure.

  5. #5
    Senior Member jberenyi's Avatar
    Join Date
    Dec 2005
    Location
    West Haven, Utah
    My Bikes
    Lynskey Level 3 Custom, De Bernardi SLX, Felt F1C, Burley Duet Tandem
    Posts
    501
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by 2372ighost View Post
    Headsets are not designed to have a gap on any portion. You have either not properly installed it or your headtube needs to be faced.
    So even a .010 gap in a 90 degree segment is bad? Wow. I didn't think this would be an issue with so much of the rest of the cup fully seated. Maybe Sheldon can shed some light on this topic.

  6. #6
    Gone, but not forgotten Sheldon Brown's Avatar
    Join Date
    Jul 2002
    Location
    Newtonville, Massachusetts
    My Bikes
    See: http://sheldonbrown.org/bicycles
    Posts
    2,301
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by jberenyi View Post
    Just installed a threaded Campy Record headset tonight. The cups went in fine using the proper tool. There is one small section (90 degrees on a 360 degree circle) on the bottom race that I can fit a .010 feeler gage between the cup and headtube face. Is this okay to leave alone or should I remove the cup and have the headtube faced.

    Bottom line: Is there a tolerance for gap between the cup and headtube. Being an engineer, most things in this world have a tolerance but maybe we need zero here.
    If the race is square and doesn't wiggle, it's fine.

    Sheldon "Perfect Is The Enemy Of Good Enough" Brown
    [COLOR=blue][CENTER][b]Harris Cyclery, West Newton, Massachusetts[/b]
    Phone 617-244-9772, FAX 617-244-1041
    [URL= http://harriscyclery.com] http://harriscyclery.com[/URL]
    Hard-to-find parts shipped Worldwide
    [URL=http://captainbike.com]http://captainbike.com[/URL]
    Useful articles about bicycles and cycling
    [URL=http://sheldonbrown.com]http://sheldonbrown.com[/URL] [/CENTER] [/COLOR]

  7. #7
    Senior Member Road Fan's Avatar
    Join Date
    Apr 2005
    Location
    Ann Arbor, MI
    My Bikes
    Terraferma 650b, Mondonico SL and ELOS, Masi Gran Criterium, Trek 610, Breezer Liberty, Georgena Terry Classic
    Posts
    10,762
    Mentioned
    3 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Sheldon Brown View Post
    If the race is square and doesn't wiggle, it's fine.

    Sheldon "Perfect Is The Enemy Of Good Enough" Brown

    Great, the perfect IS the enemy of the good, but "the race is square" is not a sloppy spec, amenable to "good enough!" It means to me "the alignment MUST be as right as available tools can make it."

    On the several used frames where I've renewed the headset, I've only needed facing and reaming on one bike, based on not being able to get a good adjustment and smooth rotation. It was also a Stronglight, a bit less forgiving than a ball-based bearing.

    Road Fan

  8. #8
    Senior Member Road Fan's Avatar
    Join Date
    Apr 2005
    Location
    Ann Arbor, MI
    My Bikes
    Terraferma 650b, Mondonico SL and ELOS, Masi Gran Criterium, Trek 610, Breezer Liberty, Georgena Terry Classic
    Posts
    10,762
    Mentioned
    3 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by jberenyi View Post
    That's gross. Ebay should have removed the pic for sure.
    I've seen her on Ebay a lot - I think she's the one whe rebuilds those bikes.

  9. #9
    cab horn
    Join Date
    Jun 2004
    Location
    Toronto
    My Bikes
    1987 Bianchi Campione
    Posts
    28,298
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by jberenyi View Post
    That's gross. Ebay should have removed the pic for sure.
    I dunno. Doesn't seem that gross to me.
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  10. #10
    Senior Member jberenyi's Avatar
    Join Date
    Dec 2005
    Location
    West Haven, Utah
    My Bikes
    Lynskey Level 3 Custom, De Bernardi SLX, Felt F1C, Burley Duet Tandem
    Posts
    501
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Sheldon Brown View Post
    If the race is square and doesn't wiggle, it's fine.

    Sheldon "Perfect Is The Enemy Of Good Enough" Brown
    Thanks Sheldon. We finished installing the fork and the bearings feel great...nice and silky smooth. Glad I didn't have to remove those gorgeous Record cups.

Posting Permissions

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