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  1. #1
    mtbr member
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    What size seatpost on an AC?

    OK, I'm thinking about getting a different seatpost for my AC. What diameter seatpost should I get. I want to ditch that stupid plastic shim. Whats the deal with that anyway?

  2. #2
    No Brakes
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    30.9mm...well, that's what I'm using for a '03 frame...should be the same for '04.

    Enjoy!


    NoBrakes

  3. #3
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    its an 03

    Thanks man, actually I have an 03, so that should work.

  4. #4
    Doesntplaywellwithmorons!
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    Quote Originally Posted by No Brakes
    30.9mm...well, that's what I'm using for a '03 frame...should be the same for '04.

    Enjoy!


    NoBrakes
    Are you sure you didn't do what I did, run a 30.9 post simply because they fit close enough and are widely available in better models/brands?

    Correct size for most of the full suspension giant aluminium mtb frames is 30.8mm.

  5. #5
    No Brakes
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    Quote Originally Posted by DeeEight
    Are you sure you didn't do what I did, run a 30.9 post simply because they fit close enough and are widely available in better models/brands?

    Correct size for most of the full suspension giant aluminium mtb frames is 30.8mm.

    Either one works, on my NRS I'm running a 30.8. Tried that on the AC and it work but since I wanted to build the AC to the way I want so I went with a Thomson 30.9. The fit is a bit snug compared to the 30.8 but it works. Hope that clarifies the situation.

    NoBrakes

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