27.0mm seatpost in a 27.2mm tube?- Mtbr.com
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  1. #1
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    27.0mm seatpost in a 27.2mm tube?

    i know it's not SS-related, but can i use a 27.0mm seatpost in a 27.2mm tube? i really, really want to buy this 27.0mm seatpost off ebay.

    i searched and all i could find related to the opposite problem (27.2mm post into 27.0mm tube), and i could not find any shim that small. i read about using a coke can as a shim?

    opinions? advice?

  2. #2
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    I did the soda can shim trick and it worked just fine.

  3. #3
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    Personally I would never do this.

    --Sparty
    disciplesofdirt.org

    We don't quit riding because we get old.
    We get old because we quit riding.

  4. #4
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    The soda can will work, in a pinch, but I would not recommend buying a seatpost that is too small, only to turn around and fix it with duct tape and rubber bands.
    -Chris

  5. #5
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    who would've thought 0.2mm would be such a big difference?

    fine, i won't get it.

  6. #6
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    You wouldn't think so but it is.. I have a Bianchi Grizzly that reqiures a 26.8 post, so I purchased a Thomson 26.8 seatpost and it still slips so I had to do the soda can shim trick it works but I really wish I didn't have to do so.

    Quote Originally Posted by alexrex20
    who would've thought 0.2mm would be such a big difference?

    fine, i won't get it.

  7. #7
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    Quote Originally Posted by Sparticus
    Personally I would never do this.

    --Sparty
    I did the soda can thing on my road bike - did a 120K ride on Sunday with no slippage whatsoever.

    Maybe on a MTB, the chance for a slip my be greater.

  8. #8
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    Not doing this is a very good idea. It's not my bones and organs though.
    BBI certified, 12+ years as mechanic

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