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Giraffe gliding (unintentional)

Started by Joemc · · Last activity · 7 posts · 739 views

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rec.sport.unicycling archive
Published
2 April 2004
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2 April 2004
Original author
Joemc
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  1. I've been experimenting with the gearing on my homemade
    giraffe, to see how fast I can go. It's got a 24" MTB wheel,
    with the freewheel welded, and I left all the sprockets on.
    My great idea was to get used to it, then move the chain up
    a gear, and try again, etc. I got as far as a 32" effective
    wheel diameter, (which really moves) when the tack weld
    blocking the freewheel gave way. Unfortunately I was on a
    slight downslope, so i did an impromptu freewheel glide for
    around 15' before I came off. Strangely painful wrists and
    elbows this morning...

    Pic of my nasty looking handywork (now has proper, homemade,
    tensioner dropouts, not as pictured)
    unicyclist.comalbuu71

    --
    joemc - borderline sociopath
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  2. That's quite impressive. How hard was it to control at the
    "geared up"? How in the world did you manage to stay up
    while gliding? Was there any resistance, or was it just
    really fast? What was that dismount like?

    On a side note, that frame looks strangely like a Hunter:

    +-------------------------------------------------------
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    --
    daino149 - How's it going, Texas?

    there ain't enough body armor in the country for me to try that. -- Ken
    on the mtbr forum in reference to MUni
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  3. Ouch, get some wrist and elbow guards for future speed runs.
    Even if the hub holds in the future there is always the
    chance of a high speed forward fall into a superman slide.

    Sounds like you're working your way up in the gear ratios. I
    have a 20" wheel geared 2/1 for a 40" equivalent.

    I don't ride it often, my only injury so far is from when I
    was getting used to it after a long period of non-use.
    Because of the light wheel and the large gear the wheel
    tends to "shoot" out in front because the wheel has traveled
    twice as far as your brain thinks it it going to. One time
    it really shot forward, I went straight down and my leg hit
    the chain ring. Only a little pain and a grease sprocket
    tatoo. No permanent tatoo.

    Keep us posted on your progress.

    --
    UniBrier - Its Time to Ride

    Steve DeKoekkoek
    A one track mind in search of the never-ending sine wave.
    ------------------------------------------------------------------------
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  4. What a cool giraffe. Are you going to reweld the freewheel
    and try again?

    UniBrier's giraffe is actually pretty easy to ride. It's
    REALLY difficult to mount and, surprisingly, to dismount.
    I had a hard time predicting where the rascal would go
    when I got off.

    Are you freemounting this thing? Do you find it hard to
    dismount with a large effective wheel diameter?

    --
    harper - Old dog, no tricks

    -Greg Harper

    B L U E S H I F T

    "i remember writing that, what a shocker." - Jagur Thomas

    "I don't care if the astronauts landed on the moon or not. NASA invented
    Tang, and that's what's really important!" - paco

    "You can't always trust the internet to be right!" - Rowan
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  5. Hey, If you welded some pegs to the side where the seat was
    just above the pedal clearance you could glide, that would
    be awesome. it would be the first giraffe glide ive ever
    seen. But definetely a cool thingymabobbit.

    --
    Catboy - I enjoy the taste of dirt!

    "If a piano player is a pianist is a racecar driver a racist?"
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  6. thats really cool! there is another story about
    unintentional giraffe gliding i wasnt there, but i will
    throw out the word "freewheel" talk to ender about it, i'll
    try and get him to post it for you

    --
    Bonduranto - Awesome(but not at uniing)

    I've even passed a Jeep Cherokee stuck in the snow to who's driver I
    asked, 'May I suggest putting it into one wheel drive?'
    --Sofa
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  7. -------How hard was it to control at the "geared up"? How in
    the world did you manage to stay up while gliding?------

    It's easy enough to ride once you get up to speed, but very
    counter intuitive setting off, it keeps shooting out from
    underneath. I didn't so much 'manage to stay up' whilst
    freewheeling, more I 'happened to stay up', briefly. By the
    time I'd twigged what was going on, gravity had helped
    itself to a greater share of the equation, and I was landing
    backwards onto my hands. I got away with minor bruises and
    aching wrists.

    With the freewheel fully seam welded, I took it along to the
    unimeet where a few others had a go, geared to 36". Roger
    tried to freemount it, but the cluster loosened from it's
    thread (I'd spent hours trying to make it do this!)

    I'm confident it can be ridden at much higher gearings
    (60"?), but needs the cluster welding on tight, and plenty
    of body armour. Could do with a new heavy duty chain, as
    it's taking some serious forces, also needs some 'prettying
    up' too.....

    --
    joemc - borderline sociopath
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