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  1. #1
    Senior Member GordoTrek's Avatar
    Join Date
    Nov 2011
    Location
    Rochester, NY
    My Bikes
    1990 Trek 930 singletrack, 1982 Trek 412, 1993 Trek 2200 Composite,1973 Raleigh Gran Sport, 1974 Raleigh Grand Prix Porteur, 1975 Raleigh Sports,1984 Schwinn World Sport,
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    888
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    Replacing a seatpost on a 2001 Raleigh C30

    My wifes bike has a suspension seat post, unfortunately its broken, the collar around the shock is rotating around and the seat moves back and forth because of it.
    anyway, im in the market for a replacement seat post, but i can't make out the measurements on the seatpost, and bike pedia just says its aluminum... any ideas ? trying to avoid the bike shop..

    let me know

  2. #2
    Senior Member CACycling's Avatar
    Join Date
    Feb 2008
    Location
    Oxnard, CA
    My Bikes
    '08 Fuji Roubaix RC; '07 Schwinn Le Tour GS; '92 Diamond Back Ascent EX
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    Does it have a shim on it? If it does, I'd suggest getting a post to fit the frame without the shim (one of my wife's bikes came with a suspension post with a shim and I replaced it with a solid post that fit without the shim). Easiest way is to use a caliper to measure the OD of the post or shim. You can also measure the circumfrance and divide by PI but this is a bit trickier.

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