rec.sport.unicycling · Public discussion

Seat posts

Started by RichVoice · · Last activity · 4 posts · 194 views

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rec.sport.unicycling
Published
12 September 2006
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13 September 2006
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RichVoice
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  1. When I started learning how to ride at the beginning of the year, I
    lowered my seat post. It wouldn't go low enough to where I felt
    comfortable, so I cut some off the bottom. Then I cut some more off.
    As soon as I could go a few feet, I realized that I'd lowered it more
    than I needed to, so I raised it back up. I thought I'd raised it back
    up enough, but now that I'm feeling comfortable on it, I think I can
    raise it another half-inch or inch or so. Unfortunately -- as I'm sure
    some of you have guessed at this point -- I cut too much off, and I've
    got it as high as it will go.:o

    So I need to get a new seat post. I'm pretty sure that what I've got
    is a United seat post
    (http://www.unicycle.com/shopping/shopexd.asp?id=271), or something
    very similar, as it has the cross-hatch etching. There's 8 inches
    left, so I figure I need something that's 11 or 12 inches.

    But what kind should I get? I just read some threads here about seat
    posts breaking, but I'm not worried about that: I'm not doing anything
    off-road, and won't be for a long, long time, and I'm not interested in
    trials, I'm just going to be riding (or attempting to ride!) on
    relatively flat pavement, at relatively low speeds. My biggest concern
    is that the post that I have is all dimpled at all of the places where
    I clamped it in, and I'd like to get something that is less likely to
    bend like that, because it seems to me that if it's less likely to
    bend, it will be less likely to move if (er, when) it hits the ground
    during a UPD. I noticed while attempting to freemount (ha ha, THERE'S
    something that will take a while) that the seat kept wanting to tweak
    out of center just by the small amount of pressure I was applying with
    my legs. But I'm not sure if that's something that's just going to
    happen, regardless of what kind I get.

    For what it's worth, the unicycle is a 24" Sun, and the external
    diameter of the seat post is just shy of 7/8" (so I assume it's a
    22.2mm).

    Any advice would be appreciated!

    Thanks,
    Rich

    --
    RichVoice

    http://richonaunicycle.blogspot.com
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  2. The standard 'United seatpost'
    (http://www.unicycle.com/shopping/shopexd.asp?id=271) will do you fine.
    The people who are bending seatposts are doing aggressive riding that
    you can't do on a Sun without risking breaking the unicycle. You're
    not going to be bending the seatpost unless something odd happens.

    If the seatpost collar is removable from the Sun (sometimes they are
    spot welded on) you can replace it with a 'Nimbus dual bolt clamp'
    (http://www.unicycle.com/shopping/shopexd.asp?id=929) or similar. It
    will hold the seatpost securely and keep it from twisting. The stock
    seatpost clamp on unicycles like the Sun is wimpy and completely unable
    to clamp the seatpost properly.

    --
    john_childs

    john_childs (att) hotmail (dott) com
    Team Dirty Muni
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  3. john_childs said:

    If the seatpost collar is removable from the Sun (sometimes they are
    spot welded on)

    Thanks, John!

    The collar seems to be fixed. Is it removable anyway, with a little
    carefully-applied elbow grease? I don't want to break anything, but I
    really would like to have a better collar if it's possible.

    --
    RichVoice

    http://richonaunicycle.blogspot.com
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  4. RichVoice said:

    Thanks, John!

    The collar seems to be fixed. Is it removable anyway, with a little
    carefully-applied elbow grease? I don't want to break anything, but I
    really would like to have a better collar if it's possible.

    It can be removed. People have done it. I have not, so I don't have
    first-hand knowledge of what is involved. Might want to email UDC
    (unicycle.com) to see what they suggest. Or perhaps someone will
    respond here who has removed one of the spot welded on clamps.

    I would suspect that you will have to sand or file away some bits of
    old weld after forcibly breaking the weld.

    A good quality clamp makes all the difference in terms of getting the
    seatpost to stay put. A good single bolt clamp will do well. A good
    double bolt clamp will do great.

    --
    john_childs

    john_childs (att) hotmail (dott) com
    Team Dirty Muni
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