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Thread: Seatpost shim??

  1. #1
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    Seatpost shim??

    Would like to use my reverb on my 456 carbon for some mtn rides/epics... Reverb is 30.9 and 456c is the 31.6... Looks like shims come in plastic (for use with carbon posts, so they say) and aluminum.... And thoughts, experience, or opinions on using a shim with the carbon frame? And should i go with plastic or aluminum? Thanks...

  2. #2
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    I also need one of those, i bought the kronolog on 30.9 for my giant trance, i just bought a trek fuel ex 9.9 frame that fits 31.6. So i really want to hear what ppl reply here.

  3. #3
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    Quote Originally Posted by augustiner View Post
    Would like to use my reverb on my 456 carbon for some mtn rides/epics... Reverb is 30.9 and 456c is the 31.6... Looks like shims come in plastic (for use with carbon posts, so they say) and aluminum.... And thoughts, experience, or opinions on using a shim with the carbon frame? And should i go with plastic or aluminum? Thanks...
    Have you found a 31.6 to 30.9 shim? I could not last year.
    I am using Cane Creek aluminum shims with a dropper post in carbon frames with no issues.
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  4. #4
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    Wheels Mfg Seatpost shim, 30.9 to 31.6mm

    A few others come up with a google search as well...

  5. #5
    Nouveau Retrogrouch SuperModerator
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    Quote Originally Posted by augustiner View Post
    Wheels Mfg Seatpost shim, 30.9 to 31.6mm

    A few others come up with a google search as well...
    I specifically looked at the Wheels Mfg site last year and many searches. No go.

    There now (for $16)
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    No go because 16 dollars, or no go for another reason.... I'm cheap, but if it saves me 300 bucks for another reverb......

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    Quote Originally Posted by augustiner View Post
    No go because 16 dollars, or no go for another reason.... I'm cheap, but if it saves me 300 bucks for another reverb......
    "No go" as in there were no 31.6 to 30.9 shims to be found from Wheels or at all a year ago.
    mtbtires.com
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  8. #8
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    there is no way to convert 31.6 to 30.9, you cant fit a bigger tube inside a smaller one.

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    Quote Originally Posted by kevingp View Post
    there is no way to convert 31.6 to 30.9, you cant fit a bigger tube inside a smaller one.
    ahem...31.6 seat tube to a 30.9 seat post
    mtbtires.com
    The trouble with common sense is it is no longer common

  10. #10
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    It's ok, I asked a buddy when I got my frame what I needed to use to put an aluminum frame in my carbon frame. I think we all got what cha mean....

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