Cycling Equipment · Public discussion

RST ala carte steerer tubes

Started by Hank Wirtz · · Last activity · 4 posts · 758 views

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Cycling Equipment
Published
20 January 2007
Last activity
20 January 2007
Original author
Hank Wirtz
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  1. I've noticed that RST sells their forks through QBP sans steerer tubes,
    which are sold separately, so you can get whatever diameter or length
    you need. It looks like they're press-fit.

    Has anyone ever bought one of these and pressed the tube in themselves?
    I looked at RST's web site to see if they had instructions, but they
    only say that the tubes are pressed at the factory and not to attempt
    to press it out (which makes sense, since it's a steel tube being held
    by an aluminum crown - getting it out will probably enlarge the hole on
    the crown).

    I've got access to a hydraulic bearing press that I think would do the
    trick, but I'm wondering if there's more to it than I'm imagining. I
    ask because I'd like to put one on a bike with a 1" head tube, and I'd
    like to preserve the threaded headset and quill stem if possible.

  2. Hank Wirtz said:

    I've noticed that RST sells their forks through QBP sans steerer tubes,
    which are sold separately, so you can get whatever diameter or length
    you need. It looks like they're press-fit.

    Has anyone ever bought one of these and pressed the tube in themselves?
    I looked at RST's web site to see if they had instructions, but they
    only say that the tubes are pressed at the factory and not to attempt
    to press it out (which makes sense, since it's a steel tube being held
    by an aluminum crown - getting it out will probably enlarge the hole on
    the crown).

    I've got access to a hydraulic bearing press that I think would do the
    trick, but I'm wondering if there's more to it than I'm imagining. I
    ask because I'd like to put one on a bike with a 1" head tube, and I'd
    like to preserve the threaded headset and quill stem if possible.

    Hank,
    The forks that RST sells through qbp without a steerer tube have bolts
    on the crown for bolting on the steerer tube. If you order a 1" steerer
    tube and fork they should send you a shim that slides over the steerer
    tube to fit the crown. Good luck.
    Steve

  3. Hank Wirtz said:

    I've noticed that RST sells their forks through QBP sans steerer tubes,
    which are sold separately, so you can get whatever diameter or length
    you need. It looks like they're press-fit.

    Has anyone ever bought one of these and pressed the tube in themselves?
    I looked at RST's web site to see if they had instructions, but they
    only say that the tubes are pressed at the factory and not to attempt
    to press it out (which makes sense, since it's a steel tube being held
    by an aluminum crown - getting it out will probably enlarge the hole on
    the crown).

    I've got access to a hydraulic bearing press that I think would do the
    trick, but I'm wondering if there's more to it than I'm imagining. I
    ask because I'd like to put one on a bike with a 1" head tube, and I'd
    like to preserve the threaded headset and quill stem if possible.


    I believe where you got confused is that some RST models have
    permanently pressed columns and other models have (had?) two-bolt crowns
    with a replaceable column. See also early Marzocchi and the label "Mozo"

    --
    Andrew Muzi
    www.yellowjersey.org
    Open every day since 1 April, 1971

  4. Steve wrote:
    Hank,

    Quoted message said:

    The forks that RST sells through qbp without a steerer tube have
    bolts on the crown for bolting on the steerer tube. If you order a
    1" steerer tube and fork they should send you a shim that slides
    over the steerer tube to fit the crown. Good luck.
    Steve

    And-

    A Muzi said:

    I believe where you got confused is that some RST models have
    permanently pressed columns and other models have (had?) two-bolt crowns
    with a replaceable column. See also early Marzocchi and the label "Mozo"

    Thanks to both of you for this good information!

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