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Broken CF seat base

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rec.sport.unicycling
Published
22 May 2007
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25 May 2007
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muzzle
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  1. I did a search, and I didn't find much.
    I was out riding 5 mins ago, and trying double backs down this longish
    three set near my house.... I kept coming close, but not getting both
    feet on.... and then CRACK.

    My seat was now sloping forward quite severely, so I had assumed that
    my Cromo seatpost had been snapped or bent. But no! :'( My base has
    cracked in half.

    I'm not happy, because those things sure cost a fair amount, and I'm
    saving money so that I can move to Wellington in a few months. Now I
    can't ride street till I find a way to buy another base.

    How many others have broken these bases?

    --
    muzzle

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  2. pictures please

    --
    torkerdx

    gordito8me said:

    it's like running across the highway at rush hour. Dangerous, stupid,
    but not really that fun.

    Unicaw89 said:

    Koxx rapes Torker hard!

    skianduniaddict said:

    never give 4 teenagers a camera... they go crazy


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  3. Did you have a piece of plastic or rubber between the base and the post?
    I have heard of other bases breaking but only one base breaking that
    had that.

    --
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  4. ntappin said:

    Did you have a piece of plastic or rubber between the base and the post?
    I have heard of other bases breaking but only one base breaking that
    had that.

    Yeah, of course. I have taken really good care of it. Stupid things
    cost $140NZ here, thats like 2 weeks of wages for me.

    --
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  5. Ahh, ok well then I'm afraid you may have just had really really bad
    luck. Although I can empathize with the price, they cost 120 CAD over
    here, which is why I have yet to shell out the money to buy one.

    --
    ntappin

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  6. ntappin said:

    Ahh, ok well then I'm afraid you may have just had really really bad
    luck. Although I can empathize with the price, they cost 120 CAD over
    here, which is why I have yet to shell out the money to buy one.

    I think I am just too damn heavy. I'm going to have to buy another one
    soon too, because the plastic bases only last a few weeks of light
    riding.
    So far this year: Two badly sprained ankles, glandular fever, a hair
    cut, and a broken CF base. Just not a good one for my unicycling I
    guess.

    --
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  7. muzzle said:

    I think I am just too damn heavy. I'm going to have to buy another one
    soon too, because the plastic bases only last a few weeks of light
    riding.
    So far this year: Two badly sprained ankles, glandular fever, a hair
    cut, and a broken CF base. Just not a good one for my unicycling I
    guess.

    Try a post with seat reinforcing tube, or stiffener plate in a plastic
    base. If you used some 1/8th steel for a plate you would'nt bend it
    ever.

    --
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  8. Evan Byrne said:

    Try a post with seat reinforcing tube, or stiffener plate in a plastic
    base. If you used some 1/8th steel for a plate you would'nt bend it
    ever.

    Thing I will try a seat post made of a solid rod of steel, and a base
    with 7/8" steel plate 😉

    So, I know that Ryan Atkins has broken one... Anyone else?

    --
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  9. Take a picture of the broken base along with pictures of how it was
    attached to the seatpost. I'm curious if there was something about how
    you had it attached that might have made it more likely to break. Did
    you score (scratch or chip) the base while drilling the holes?
    Anything else that might have contributed?

    The CF seat bases aren't indestructible. To keep prices reasonable
    they have a lot of resin in the middle and aren't solid layers of CF
    all the way through. They aren't as strong as some of the more mass
    produced CF bicycle parts that are able to use more CF and advanced
    molding and layering.

    --
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  10. john_childs said:

    Did you score (scratch or chip) the base while drilling the holes?
    Anything else that might have contributed?

    No scratches or chips, I can't think of anything which may have caused
    it to fail other than the fact that I may not be the lightest rider.
    Technically the base hasn't snapped right through, but flexes several
    mm. It is now on my bedroom floor, so I'll have to try take some macro
    shots so the detail is high enough. Its kinda hard to see it.

    --
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  11. That sux, Muzz. I might sell my Miyata shaped CF base if you twist my
    arm... I'm not really using it at the moment. You'd probably need to
    use a rail seatpost, as its drilled for Miyata seatposts.

    --
    TonyMelton

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  12. You may search around your home town to find some one who does work on
    fiberglass. Chances are they could repair the base.

    --
    enahs
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  13. Erik Douane (mango) has broken one, and so has ryan atkins

    --
    mornish

    aim:kiloornish
    email: mornish AT gmail DOT com

    Spencer said:

    well, at least I'm not drinking my own blood, I only drink other
    people's blood...


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  14. TonyMelton said:

    That sux, Muzz. I might sell my Miyata shaped CF base if you twist my
    arm... I'm not really using it at the moment. You'd probably need to
    use a rail seatpost, as its drilled for Miyata seatposts.

    Never going to consider a rail adaptor on my Street/Trials uni, just
    isn't right.
    Miyata base would be ok, but you've drilled it for (a) a Miyata
    seatpost (b) a Miyata handle, its hard to get 27.2mm Miyata cromoly
    seatposts, and my hands are too big for those small handles (like it
    for freestyle uni tho).

    enahs said:

    You may search around your home town to find some one who does work on
    fiberglass. Chances are they could repair the base.

    I live in our country's largest city, so that's no problem. I have all
    the equipment required for fiberglass work, but I doubt that would be
    strong enough. Might fabricate a few strengthener plates from steel and
    use them on the bases I already have, hopefully be strong enough.

    mornish said:

    Erik Douane (mango) has broken one, and so has ryan atkins

    Thanks, thats really what I wanted to know. I really gotta be more
    gentle when I am trying to land new tricks.

    --
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  15. wait wht do you mean the CF seat base, I just bought the seat, are you
    saying it is possible to break one, ppl have broken them before????
    It took me forever to raise up that much money....plz tell me it isnt
    the seat that broke, pics plz, and tell the truth, not wht i said.🙁 🙁

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  16. Pretty sure I remember seeing Manu break one in a vid too.

    CKCrowe said:

    wait wht do you mean the CF seat base, I just bought the seat, are you
    saying it is possible to break one, ppl have broken them before????
    It took me forever to raise up that much money....plz tell me it isnt
    the seat that broke, pics plz, and tell the truth, not wht i said.🙁 🙁

    People have definitely broken them before.

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  17. I snapped the back of a CF base ejecting from a glide. CF and hard
    surfaces like pavement don't seem to mix well.

    --
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  18. I have uploaded some pictures from my phone to the gallery,
    http://tinyurl.com/2n2cz9

    Its hard to see the damage, but the cracks go all the way from one side
    to the other.

    --
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  19. just because they can break, it doesn't mean they aren't good. They are
    about 20 times stronger, stiffer, and cooler looking then plastic, as
    well as lighter. you would brake 10 plastic seats before you broke a
    CF one.

    --
    mornish

    aim:kiloornish
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    Spencer said:

    well, at least I'm not drinking my own blood, I only drink other
    people's blood...


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  20. mornish said:

    just because they can break, it doesn't mean they aren't good. They are
    about 20 times stronger, stiffer, and cooler looking then plastic, as
    well as lighter. you would brake 10 plastic seats before you broke a
    CF one.

    And that's why I'm buying another to replace the broken one. The fact
    that they don't flex is worth it alone, they feel so much nicer, I want
    one for my muni for that reason.

    --
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