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Thread: seat post size

  1. #1
    Newbie polaritybear's Avatar
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    seat post size

    I recently picked up a Raleigh super grand prix and was looking to replace the seat post but I am unsure of the size. Sheldon Browns site says its 25.4 and I was just curious if anyone out there can confirm this. Thanks.
    if they give you ruled paper, write the other way.

  2. #2
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    Take the frame to your LBS. They should have the tool to measure the diameter.

  3. #3
    Senior Member CACycling's Avatar
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    You can also look carefully at the old set post. Sometimes the diameter will be inscribed on it near the minimum insertion line.

  4. #4
    Newbie polaritybear's Avatar
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    Thanks for the help. After some vigorous scrubbing on the seat post Ive determined the size to be 26.6.
    if they give you ruled paper, write the other way.

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