Triathlon · Public discussion

seatpost suggestions

Started by iceberg · · Last activity · 3 posts · 1,162 views

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Triathlon
Published
5 May 2004
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5 May 2004
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iceberg
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  1. Any suggestions for a seatpost that'll put me forward on my road bike, closer to the bottom bracket?

    I'd prefer a regular one with enough arch in the tilt to allow me to adjust the saddle accordingly if I were to turn it backwards. Otherwise I'm open to a post with a bend in it.

  2. Try the Thomson Elite - about $60 US. Unlike most seat
    posts, it has no set back so it allows you to position
    yourself much further forward over the crankset.

    "iceberg" <[email hidden]> wrote in message
    "]news:[email hidden]...

    Quoted message said:

    Any suggestions for a seatpost that'll put me forward on
    my road bike, closer to the bottom bracket?

    I'd prefer a regular one with enough arch in the tilt to
    allow me to adjust the saddle accordingly if I were to
    turn it backwards. Otherwise I'm open to a post with a
    bend in it.

    --

    ?????

  3. iceberg <[email hidden]> wrote in message news:<[email hidden]>...

    Quoted message said:

    Any suggestions for a seatpost that'll put me forward on
    my road bike, closer to the bottom bracket?

    I'd prefer a regular one with enough arch in the tilt to
    allow me to adjust the saddle accordingly if I were to
    turn it backwards. Otherwise I'm open to a post with a
    bend in it.

    Thomson makes a good post but if you accept a no-offset one
    you can get a Nashbar (reg 25$) or the Giant one Nashbar
    has on sale for 12.95. These don't allow you to move very
    far forward.

    Race-Face has one which looks like it would work but I
    emailed them and they (promptly and nicely) said no (or they
    didn't want to worry about liability).

    I have a Control Tech which does handle the angular
    adjustment turned either way and seems plenty stiff (it has
    an extra longitudinal web extruded up the length of it).
    Picked it up scratched but cheap.

    Remember that 1cm fore-aft change is about 1 degree seatpost
    angle approx: arcsine( 1cm / distance from hip joint to BB
    axis) so to get from 73 to 78 deg you want 5cm (about 2in).

    The back edge of the Control Tech clamp is at the center of
    the post axis when flipped, about 1 in forward of the
    unflipped position so its only good for about 2.5 deg of max
    effective shift forward relative to unflipped (which seems
    to match my Titec and Avenir clamp positions). I used this
    post with the seat shifted max forward on the rails. It rode
    harsh that way but that was with a crummy seat.

    Now I'm using a Profile Fast Forward which seems to be
    setup about
    3/4 in forward of the Control Tech setup (seat and post
    are still intact on the bench). I'm playing with my
    position but I have plenty (too much?) rail to move
    further forward.

    Maybe you're interested: I'm also using a M2racer
    PowerModule with the Profile Fast Forward. its about 120g
    $42 allows on-the-go seatpost adjustment with a quick
    release. You slide along the seat rails (about 4 cm = 4 deg
    angle on most seats). This thing positions its clamp forward
    about .5 to .7 inch of your post clamp. You also move
    forward some more because you slide the post down in the
    frame some to accomodate the PowerModule's height.

    I might try the PowerModule with the Control Tech.

    After some rides I find I like forward position. Now I want
    my old Nashbar frame (damned 25.0 post dia.) fwd further so
    I switched from integrated to a straight alum. post with a
    cheap-cheap stamped steel (kids bike) clamp. These flip
    around nicely and put the rear edge of the clamp at center
    post. Its a good trick for odd seatpost diameters and its a
    cheap experiment. Truth in posting: I learned this trick
    somewhere on Sheldon Brown's site.

    Good luck with it, Ed

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