rec.sport.unicycling · Public discussion

Re: custom frame ideas (exotic materials!)

Started by GizmoDuck · · Last activity · 2 posts · 367 views

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rec.sport.unicycling
Published
15 June 2008
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15 June 2008
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GizmoDuck
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  1. kington99 said:

    a few things to consider:

    improving strength isn't really that important, on the whole unicycle
    frames do not break, often when they do, it is due to a design or
    manafacturing fault, like the old torker DX frames. Failure as seen in
    some KH frames seems to be caused by crack propogation from cyclic
    loading, using stronger materials will not help you here.

    Frame stiffness is more pertinent, you waste less energy and it gives a
    more precise feel to the uni. Also it is important if you run brakes,
    both for their effectiveness in use and to stop brake rubbing under
    hard riding.

    In conclusion, while a really excellent 36" frame has yet to be
    produced, there is little improvement to be made in trials/street
    frames. Any use of exotic materials will be almost purely for cool
    value. With the frame of most trials unis only making up 10% of the
    total weight, even dramatic percentage savings will still not
    contribute much to the overall uni, good pedal choice or tyre shaving
    will offer far more benfit.

    Having said all that, I'm still working on a composite monocoque uni
    frame that I hope to manafacture this summer.

    I would love to see a V-frame in Carbon fibre. It could be made
    extremely light and strong. I was thinking of getting a carbon bike
    frame the other day...a Scott CR1. The frame is lighter than most
    unicycle frames.

    --
    GizmoDuck

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    www.sinzuni.org

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    details.
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  2. GizmoDuck said:

    I would love to see a V-frame in Carbon fibre. It could be made
    extremely light and strong. I was thinking of getting a carbon bike
    frame the other day...a Scott CR1. The frame is lighter than most
    unicycle frames.

    My thoughts are more towards blade shaped legs, several times wider
    than than thick. This would keep the profile low and offer good
    stiffness. A v frame is a good idea, might be a project for the future
    if the first frame works out.

    --
    kington99

    Dave

    - what a thoroughly post-modern subversion of the cycling genre -
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