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Can a buckled rim be straightened ?

Started by JohnnyReggae · · Last activity · 11 posts · 256 views

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rec.sport.unicycling
Published
1 October 2007
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2 October 2007
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JohnnyReggae
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  1. I have a Chinese no name brand Uni, my first Uni still, which has a 24"
    1.75" rim. I have a Kenda 1.95" tyre on. I recently started to learn
    how to hop, and was slowly building up some confidence with that. Then
    I suppose the inevitable happened while I was hopping, I buckled the
    rim. From my perspective it looked like the rim almost bent in half....
    it probably didn't, but seeing it bend as I landed on a hop it really
    seemed like it. Wanting to be sure that I saw it correctly I tried
    hopping again, and the same thing happened.... duh !!

    So my rim in now buckled... not bad enough not to be able to ride, but
    enough to know that it shouldn't be like that, and looking down while
    riding that wobble is just well.... you know.... *sigh*

    It's probably a lost cause, however can a rim be straightened slightly
    ? If so how ? I assume that tightening the spokes in certain areas may
    pull it straighter... ?

    I know it's time to upgrade..... but I don't have the money for
    anything that I would want right now, will need to save up some more
    first.

    --
    JohnnyReggae
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  2. Do you have a pic of it by any chance?? 😕

    --
    Hazmat

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    CYPRIOT AUSTRALIAN WHO
    IS DESTINED TO BE DIFFERENT.

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  3. Here is a pic of my Uni....
    [image:
    http://amaonetya.wikidot.com/local--files/start/JohnnyReggaeUni.jpg]

    I recently bought a Qu-Ax Cross saddle as my original was getting
    unbearable to ride with... just too damn sore...

    Here is a short video of the 'Buckled Rim' (http://tinyurl.com/yqokag)

    --
    JohnnyReggae
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  4. Your wheel is out of true. You need to true it by tightening and
    loosening certain spokes with a spoke wrench.

    'Here's a tu' (http://www.sheldonbrown.com/wheelbuild.html)torial that
    explains how. It's for wheel building from scratch, so either read it
    all for better understanding or skip straight to the truing part.

    Have good fun luck.

    Oooh, and this reminds me of that municycle.com postcard: Time to get a
    new one. Has anybody got a picture of it?

    --
    ivan

    <<<<>>>>Sledgehammer for Jebus<<<<>>>>entropy isn't what it used
    to be.

    Jerrick said:


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


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  5. Thanks Ivan..... I don't have a spoke wrench, but am hoping to make it
    to a cycle shop around the corner from my house later today to try get
    one... Just wasn't sure how to go about doing it.... so thanks for the
    pointer to the tutorial !! :-)

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  6. I would sujest you get the guys at the LBS fix this one for you as a
    buckled rim may not be the best place to start learning how to true a
    wheel. If you do decide to true the wheel yourself I would sugest
    removing the cranks so you can properly stress relieve the wheel evenly
    when you are done.

    good luck whatever you do.

    ERIC

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    saskatchewanian

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  7. lol
    that rim is not buckled... just a little out of true. If you can, let
    the guys at the LBS fix it and watch. otherwise, is it even noticable
    when riding? that is a very slight bend.

    --
    skrobo

    Quoted message said:

    <> Unicycle For Christ <><


    'my video!' (http://www.unicyclist.com/forums/showthread.php?t=58465)
    ____________________________________________
    -last edited by \"elvisunifreak\" at 8:35 pm -
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  8. spoke wrench? ive been using plyers or even wire cutters😄

    --
    gabetheunicycleman

    Quotes from ACA
    "two out of three of our children are directly involved with selling
    drugs..."
    "50% of all reproductive problems are because of the man..."😄 and
    from my mum "is titanium strong?"
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  9. skrobo said:

    lol
    that rim is not buckled... just a little out of true. If you can, let
    the guys at the LBS fix it and watch. otherwise, is it even noticable
    when riding? that is a very slight bend.

    Not that noticeable when riding. Went out for a 6km ride yesterday
    (road ride). Didn't feel any wobble, but did feel that I wasn't sitting
    properly, and was tending to go towards the right..... maybe unrelated
    to the bend.

    Tried to get to the LBS yesterday, but as I walked in they were closing
    so they couldn't fix it for me. Going to another cycle shop today to
    get a spoke wrench (don't have my Uni with me today), and will give it
    a go myself just to see if I can do it. Failing that will take it to my
    local LBS on the weekend and get them to sort it out.

    The spokes do need tightening, as I can feel that some are loose, or
    rather looser that others. Never really had to deal with spoke issues
    before, so treading in new grounds here, but more than willing to learn
    and give it a go.

    --
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  10. I managed to get to a cycle shop this afternoon and bought myself a
    spoke wrench/spanner, cost 110 South African Rant. A 'Tripple Spoke
    Wrench' (http://tinyurl.com/2juw3b)

    Followed the guidelines in the wheel building tutorial from the link
    that Ivan posted, and have managed to straighten/true my wheel.... well
    probably close enough.

    I'll probably need to take my Uni for a ride now, and check it again
    afterwards to see that it stays true.

    Thanks for the help and pointers !! much appreciated :-)

    --
    JohnnyReggae
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  11. It's also important to stress relieve and tension it properly, otherwise
    it won't last long. And tensioning gives you the maximum strength.

    It explains how to tension your wheel in the tutorial. Glad it helped
    you already. Sheldon Brown = bicycle god.

    --
    ivan

    <<<<>>>>Sledgehammer for Jebus<<<<>>>>entropy isn't what it used
    to be.
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