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  1. #1
    Senior Member chunt's Avatar
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    URGENT - Seat Post moving

    Bontrager carbon carbon seat post with the metal saddle plate. The saddle plate is twisting -moving left and right- within the carbon seat post. I cannot see any adjustment to tighten or how the metal plate is attached to the carbon shaft. It appears that maybe the metal saddle plate is just glued into the carbon shaft of the post. I can move it about .25-.50 inches with my hand. This .25-.50 inches is greatly exagerated when the saddle is attached. 2004 Trek 5000 is three years old now. Planning to ride a big ride in the morning...movement started a week ago and I thought it was just tightening a screw...not the case. Anybody know what's happening here? Thanks.

  2. #2
    Perineal Pressurized dobber's Avatar
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    I'm gonna go with broken.
    This is Africa, 1943. War spits out its violence overhead and the sandy graveyard swallows it up. Her name is King Nine, B-25, medium bomber, Twelfth Air Force. On a hot, still morning she took off from Tunisia to bomb the southern tip of Italy. An errant piece of flak tore a hole in a wing tank and, like a wounded bird, this is where she landed, not to return on this day, or any other day.

  3. #3
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    So0unds like the bond between the saddle clamp and the carbon post has come "unglued". I'd contact Bontrager (aka Trek) about a warranty replacement.

  4. #4
    Senior Member chunt's Avatar
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    Broken bond is the verdict. Call to Trek dealer was pour some gorilla glue down the tube and hope it holds; warranty replacement question proved futile - too much hassle. They have no comparable seatposts in stock and no enthusiasm for getting me one...they are driving me to the web...what is 'customer service' now? I just ordered an FSA carbon replacement for $109 from Performance. Thanks.

  5. #5
    mousse de chocolat Moose's Avatar
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    Gorilla glue will not hold.

  6. #6
    . Namenda's Avatar
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    Quote Originally Posted by chunt
    Broken bond is the verdict. Call to Trek dealer was pour some gorilla glue down the tube and hope it holds; warranty replacement question proved futile - too much hassle. They have no comparable seatposts in stock and no enthusiasm for getting me one...they are driving me to the web...what is 'customer service' now? I just ordered an FSA carbon replacement for $109 from Performance. Thanks.

    "Hope it holds"?! They said that to you? And if it doesn't hold (and it won't), will they hope for a speedy recovery for you while in the hospital? Criminy...

  7. #7
    Senior Member spinbackle's Avatar
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    Quote Originally Posted by Moose
    Gorilla glue will not hold.
    A Moose speaking for a Gorilla?
    '84 Trek 850--spinbackle-built, '85 Trek 670 Campy Nuovo Record--project, '87 Trek 560 SS/Fixed--project, '87 Specialized Stumpjumper Comp w/ Deore XT--Specialized-built, '87 Rossin Record, '03 LeMond Wayzata--commuter,
    '?? TST Mtn Bike frame--project, '07 Tsunami Tandem--home-built

  8. #8
    cyclist/gearhead/cycli... moxfyre's Avatar
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    Quote Originally Posted by chunt
    Broken bond is the verdict. Call to Trek dealer was pour some gorilla glue down the tube and hope it holds; warranty replacement question proved futile - too much hassle. They have no comparable seatposts in stock and no enthusiasm for getting me one...they are driving me to the web...what is 'customer service' now? I just ordered an FSA carbon replacement for $109 from Performance. Thanks.
    Wow !! I'd put my foot down and give 'em hell for that. If it's under warranty, they are OBLIGATED to replace it, whether or not it is convenient for them to do so.

    Makes me glad that my bikes are made of metal, all the same.
    My bikes | Linux and Python stuff | Photo gallery

    Sheldon Brown, I miss you. Thanks for the advice, ideas, humor, and infectious enthusiasm for everything bikes...

  9. #9
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    Trek

    I had a similar issue with Trek in 1992. They would not replace a bad rim nor would they help me in any way. I swore that I would never buy another Trek. Not that they are not good bikes but I do not care to be treated that way. I have bought 10 to 12 bikes since that time but no more Treks for me.

  10. #10
    Senior Member Nermal's Avatar
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    What an eye opener.
    Some people are like a Slinky ... not really good for anything, but you still can't help but smile when you shove them down the stairs.

  11. #11
    cyclist/gearhead/cycli... moxfyre's Avatar
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    Quote Originally Posted by Supertick
    I had a similar issue with Trek in 1992. They would not replace a bad rim nor would they help me in any way. I swore that I would never buy another Trek. Not that they are not good bikes but I do not care to be treated that way. I have bought 10 to 12 bikes since that time but no more Treks for me.
    I'll be keeping this in mind as well. I've owned 2 used Treks and been very happy with them. But if that's how they treat customers who pay retail, then forget it.
    My bikes | Linux and Python stuff | Photo gallery

    Sheldon Brown, I miss you. Thanks for the advice, ideas, humor, and infectious enthusiasm for everything bikes...

  12. #12
    Senior Member Wogster's Avatar
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    Quote Originally Posted by chunt
    Broken bond is the verdict. Call to Trek dealer was pour some gorilla glue down the tube and hope it holds; warranty replacement question proved futile - too much hassle. They have no comparable seatposts in stock and no enthusiasm for getting me one...they are driving me to the web...what is 'customer service' now? I just ordered an FSA carbon replacement for $109 from Performance. Thanks.
    Write to Trek directly, sometimes the dealer is the problem, especially during the summer cycling season, when they tend to be busy. If the company tells you the same thing, then you have a problem.

  13. #13
    Senior Member capwater's Avatar
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    Teammate just picked up a brand new Madonne. On the first ride the fork dropouts became unbonded. Luckily we stopped to adjust his front brake and realized it before something dangerous happened. Trek sent him a new bike, but after one week the seatpost became unbonded just like the OP described. C'mon man, Trek needs to stop using Dollar Tree glue sticks to build their bikes. I'll stick with my Klein (a real one, not a Trek produced model).

  14. #14
    mousse de chocolat Moose's Avatar
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    The bike is three years old. The seatpost is not under warranty so stop hating Trek or the dealer. I would laugh and point my finger at the nut that told you to use gorilla glue though.


    A Moose speaking for a Gorilla?
    Who better to ask about the charachteristics of glue than a cloved-hooved animal?

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