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Might spend money on a Full Suspension uni

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rec.sport.unicycling
Published
6 February 2008
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9 February 2008
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unibikeling
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  1. I was reading about the Guwi, and i began to think back to summer. I had
    read a few times and read other threads, about full suspension
    unicycles. Mostly just plans. I decided that at some point (now the
    near future) that i'd buy 3-5 rock shocks, and mount them in a rim. I
    had it all solved. 5 shocks probably, so the rim doesnt taco totaly.
    And then each has pivots in them, on the rim, so it will be able to
    move when the tire does. The frame would need to be entirely custom
    built, as to acomidate the tire. I'd end up using the back tire off an
    enduro motorcycle, which the the rim would be just stiff enough not to
    taco, and a frame that would give a few inches of freespace between
    tire and frame. Either that, or i'd take like 7 smaller shocks, and
    mount them in like a 24'' rim. It wouldnt taco as easily, that in
    itself would work fairly well. Well, care to add suggestions? lol, post
    any further ideas. and I KNOW THAT THERES a thread like this, but this
    is my ideas on it. And im also planning to do this at some point, and
    maybe bring her to mondo

    --
    unibikeling

    unibikeling said:


    chrome said:

    Difficult to mount, but a fun ride once you get her going....

    -if only my unicycle was that dirty

    'lol...' (http://www.internetisseriousbusiness.com)

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  2. I believe the word "full" is unnecessary here. 🙂

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  3. i had an idea a little while ago about the whole suspension uni thing.
    so lets say you cut a hub in half, hollow out the inside so theres
    space in side, weld a heavy spring to the two ends on the inside so it
    could twist, attach the to halves so they could twist but not pull
    apart then build your wheel.

    I have no clue if this will work at all because i have no clue how much
    force is being put on it. nor do i know if the rim would work if the
    spokes were constantly twisting.

    just wanted to run it by the more experienced engineers.

    --
    Uni-Ouly

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  4. sounds good i guess, but, are you talking about mounting like 2 seperate
    wheels so to speak on it?

    --
    unibikeling

    unibikeling said:


    chrome said:

    Difficult to mount, but a fun ride once you get her going....

    -if only my unicycle was that dirty

    'lol...' (http://www.internetisseriousbusiness.com)

    my 'myspace' (http://www.myspace.com/gramwashere)
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  5. or.... we could take a guni and mount it so the gears/chain can
    slide/move with the wheel. So the frame and pedals will stay hooked
    together sorta. i'll just draw up plans and scan em or something...
    here.. brb

    --
    unibikeling

    unibikeling said:


    chrome said:

    Difficult to mount, but a fun ride once you get her going....

    -if only my unicycle was that dirty

    'lol...' (http://www.internetisseriousbusiness.com)

    my 'myspace' (http://www.myspace.com/gramwashere)
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  6. had you considered that the shocks and springs from a bike would be far
    too stiff for this use?

    --
    kington99

    Dave

    - what a thoroughly post-modern subversion of the cycling genre -
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  7. if they were too soft the rim would squash and break

    --
    unibikeling

    unibikeling said:


    chrome said:

    Difficult to mount, but a fun ride once you get her going....

    -if only my unicycle was that dirty

    'lol...' (http://www.internetisseriousbusiness.com)

    my 'myspace' (http://www.myspace.com/gramwashere)
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  8. The problem with the first design is that however much travel you give
    it, it will rotate by up to that amount when you pedal, and wind up,
    when you stop pedalling it will unwind. You can actually buy some cheap
    nasty unicycles made like this. They don't work because of the wind up.

    To make a full suspension muni, you really need to make some kind of
    giraffe or equivalent cos the pedals need to not be fixed to the wheel
    axis.

    Joe

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  9. unibikeling said:

    if they were too soft the rim would squash and break

    yes, so you need to find a happy medium, and standard bike shocks won't
    be it.

    Also what Joe said, I've ridden one of those crappy 3 shock spoke uni
    bike things, altering the shock stiffness changes the ride from too
    stiff to make any difference, to too sloppy to ride in a straight line,
    with no middle ground.

    --
    kington99

    Dave

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  10. i think i know just what your talking about
    edit: i just drew this up like 5 minutes ago, its my idea for a
    suspensioned frame
    [image:
    http://a571.ac-images.myspacecdn.com/images01/68/l_96e4394cc42a4de4976800c4d0b86942.jpg]

    --
    unibikeling

    unibikeling said:


    chrome said:

    Difficult to mount, but a fun ride once you get her going....

    -if only my unicycle was that dirty

    'lol...' (http://www.internetisseriousbusiness.com)

    my 'myspace' (http://www.myspace.com/gramwashere)
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  11. unibikeling said:

    I was reading about the Guwi, and i began to think back to summer. I had
    read a few times and read other threads, about full suspension
    unicycles. Mostly just plans. I decided that at some point (now the
    near future) that i'd buy 3-5 rock shocks, and mount them in a rim. I
    had it all solved. 5 shocks probably, so the rim doesnt taco totaly.
    And then each has pivots in them, on the rim, so it will be able to
    move when the tire does. The frame would need to be entirely custom
    built, as to acomidate the tire. I'd end up using the back tire off an
    enduro motorcycle, which the the rim would be just stiff enough not to
    taco, and a frame that would give a few inches of freespace between
    tire and frame. Either that, or i'd take like 7 smaller shocks, and
    mount them in like a 24'' rim. It wouldnt taco as easily, that in
    itself would work fairly well. Well, care to add suggestions? lol, post
    any further ideas. and I KNOW THAT THERES a thread like this, but this
    is my ideas on it. And im also planning to do this at some point, and
    maybe bring her to mondo

    You would have to have one of the shocks mounted solidly to reduce
    windup (able to completely eliminate😕:o )
    'The best working prototype I've seen' (http://tinyurl.com/3dxkw7). If
    you use 3 shocks + spokes like the second in there you wouldn't taco
    the wheel, plus lighter and prob less expensive.
    'Full thread.' (http://tinyurl.com/2wsra7)

    --
    skilewis74

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  12. I don't mean any of this in a sarcastic tone, I only mean it in more of
    a "I'm asking because I don't understand" way. For all of the work
    (new frame, hub and wheel R+D), what's the payoff once you ride as
    opposed to a standard muni? It may be a bit smoother feeling when
    riding offroad but will you be able to tolerate the associated
    consequences of a suspension frame? Also, most of your weight is on
    the pedals when you land so how will that force be displaced into the
    shocks?

    --
    mouse

    Quoted message said:

    Originally Posted by johnfoss
    Yes, being old makes you stupid.

    Quoted message said:

    Originally Posted by jerrick
    I think we should get off the topic off kinky/horny girls and
    unicycles, and back to creepy horny men.


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  13. see, in my system, the pedals arent connected to the hub directly, its
    seperated, the hub moves from in the frame, ive got so many bugs to
    work out still

    --
    unibikeling

    unibikeling said:


    chrome said:

    Difficult to mount, but a fun ride once you get her going....

    -if only my unicycle was that dirty

    'lol...' (http://www.internetisseriousbusiness.com)

    my 'myspace' (http://www.myspace.com/gramwashere)
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  14. ah, ok. that would be a bit different then. I'm no engineer, but do
    keep in mind that the "bottom bracket" type rigging you make for the
    pedals/cranks/spindle will need to be in a suspended state or you'll
    still feel like you're landing on solid unsupported ground :p

    --
    mouse

    Quoted message said:

    Originally Posted by johnfoss
    Yes, being old makes you stupid.

    Quoted message said:

    Originally Posted by jerrick
    I think we should get off the topic off kinky/horny girls and
    unicycles, and back to creepy horny men.


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  15. A recumbent I once used (Easy Racer Tour Easy) had some kind of
    suspension hub in the front wheel.
    I wouldn't call it suspension, it was more of a give that reduced
    impact on the handlebars.
    It was pretty neat actually, but i really feel the only reason it
    worked was because so little weight is focused on the front wheel on
    long wheel base recumbents.

    --
    lpounds

    Levi
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  16. [image:
    http://i255.photobucket.com/albums/hh155/dangerdog_photo/hjhgh.jpg]
    This suspension thing got me thinking and I came up with this.Basically
    it is a single pivot swingarm that could use mtb rear shocks.Chain
    driven on both sides because of split cranks.The chain length would
    remain constant through the suspension travel as the sprockets share
    the swingarm pivots.It would have a large Q factor to have room for the
    shocks.Would it be rideable and would it exhibit desirable
    characteristics with the cranks offset to the rear of the wheel.I dont
    know the answer to that ,I have no intention of building it but it
    doesn't hurt to have a think about these things.

    --
    dangerdog
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  17. looks cool. Currently im working on fashioning out some plans for my
    chain driven idea, but like a midget girraffe on steroids, odd concept
    i think, and it'd end up weighing a bit, unless i can get half of it in
    aluminum

    --
    unibikeling

    unibikeling said:


    chrome said:

    Difficult to mount, but a fun ride once you get her going....

    -if only my unicycle was that dirty

    'lol...' (http://www.internetisseriousbusiness.com)

    my 'myspace' (http://www.myspace.com/gramwashere)
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  18. If anyone wants a suspension uni frame http://tinyurl.com/24svbs

    It can be yours for $10 + shipping

    --
    pdc

    "What doesn't kill you strengthens you, what kills you strengthens your
    mother"
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  19. pdc said:

    If anyone wants a suspension uni frame http://tinyurl.com/24svbs

    It can be yours for $10 + shipping

    Ahh but the holy grail for suspension uni's is to have the cranks on
    the spongy side of the suspension.The picture in the link does no more
    than a suspension seat post.

    --
    dangerdog
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  20. dangerdog said:

    Would it be rideable and would it exhibit desirable characteristics with
    the cranks offset to the rear of the wheel.I dont know the answer to
    that ,I have no intention of building it but it doesn't hurt to have
    a think about these things.

    I'd guess it would be better ridden the other way, with the pedals in
    front of the axle. This would make the riding position more natural
    (it would be pretty much like a bike, with pedals slightly in front of
    the saddle) and would also seem a better way for the suspension to
    pivot. It would be cool to build one just to see what it was like - it
    seems like it would be over-complicating things but look at the
    monstrosities of full-suspension bikes people ride! I must say I'm a
    bit skeptical that it would be better (or even as good as) a big
    low-pressure tyre though.

    Somebody with the skills, time and resources needs to build one and see
    what it's like - it would make a nice novelty machine if nothing else.

    Rob

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