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  1. #1
    Senior Member rumrunn6's Avatar
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    seatpost upgrade

    I would like to replace this eatpost with another that is a few inches longer. This one is about 8" long; exactly 1" wide and has this TEXT engraved into it:

    ON THE HEAD:
    LAPRADE with an S/R logo

    ON THE POST:
    MA?HT
    26.4
    JAPAN
    D-84
    with an S/R logo

    It's on an '80s era Scwhinn LeTour.

    I would like a longer one for height a security.

    My other 1" seatposts don't fit. The tube on the bike is tad too small for them even if they start to feed in.
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    Last edited by rumrunn6; 01-17-10 at 11:05 AM. Reason: typos and pics
    cycling is like baseball ~ it doesn't take much to make it interesting

  2. #2
    Senior Member bigvegan's Avatar
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    This doesn't make any sense.

    If it's a 26.4 mm seatpost, then your 1" seatposts should not be too big for the seat-tube, because 1" is 25.4mm, or 1mm SMALLER than the existing seatpost.

    Try measuring your seat-tube, and maybe try using lots of grease on a 1" seattube and try inserting it again.

    Quote Originally Posted by rumrunn6 View Post
    I would like to replace this eatpost with another that is a few inches longer. This one is about 8" long; exactly 1" wide and has this TEXT engraved into it:

    ON THE HEAD:
    LAPRADE with an S/R logo

    ON THE POST:
    MA?HT
    26.4
    JAPAN
    D-84
    with an S/R logo

    It's on an '80s era Scwhinn LeTour.

    I would like a longer one for height a security.

    My other 1" seatposts don't fit. The tube on the bike is tad too small for them even if they start to feed in.

  3. #3
    Senior Member Chombi's Avatar
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    You will have to find another 26.4mm diameter seatpost with a longer legnth. Lots of longer seatposts out there, but the key thing for you is to get the correct diameter. Try eBay and do a search saying "26.4mm seatpost" and a few might pop up and hopefully some of them at longer than "normal" legnths. You might even be lucky and find the smae brand seatpost out there because there were Jillions of SR Laprade seatposts flying around at bike shops and installed as OEM on many bike brands in the 80's.

    Chombi

  4. #4
    Real Men Ride Ordinaries fuzz2050's Avatar
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    search ebay for 26.4 (that's the width you need). anything that diameter will fit.

  5. #5
    cab horn
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    Quote Originally Posted by bigvegan View Post
    This doesn't make any sense.

    If it's a 26.4 mm seatpost, then your 1" seatposts should not be too big for the seat-tube, because 1" is 25.4mm, or 1mm SMALLER than the existing seatpost.

    Try measuring your seat-tube, and maybe try using lots of grease on a 1" seattube and try inserting it again.
    I bet you the OP doesn't realize the accuracy that is needed for seatpost sizes, they're generally +/- 0.2mm.
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  6. #6
    Senior Member rumrunn6's Avatar
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    you got that right. I'm getting an education. my 1" tubes don't tighten enough. glad this post had 26.4 written on it
    cycling is like baseball ~ it doesn't take much to make it interesting

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