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700c crank length

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rec.sport.unicycling
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16 August 2005
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cathwood
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  1. I am thinking very cautiously of swapping the cranks on my 29er from 150
    to 125. However, I have a couple of questions.
    1 - will freemounting be more difficult?
    2 - when I am on my way home from my usual ride the surface slopes
    gently for about 3 miles. While I am riding on this slope my right
    shoulder 'leads' and the wheel occasionally brushes my right leg. Will
    this get worse or better or have no effect?

    Thanks in advance,
    Cathy

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  2. I'm currently borrowing (and soon have to return 🙁 ) a 29" wheel with
    125's. I can't really see myself using 150s, because then it would be
    terribly annoying to get around!

    I live in newfoundland, which is a pretty hilly place, and on occasion I
    need to pull up on the seat to get some more leverage out of the wheel.
    You should be fine with some practice though.

    Freemounting will be harder also, if only because you've got less
    leverage on the wheel to get yourself going (this is of course assuming
    that you don't rolling mount right now).

    Your legs should brush the wheel less, I would think, since they won't
    be moving around as much.

    I would say go for it, my 29er is a valid method of transportation, I
    find myself overtaking joggers on it, which is definitely respectable
    when I have a relaxed amount of time to get somewhere. It'll just take a
    little while to break the cranks in until your brain gets used to
    them.

    good luck!

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  3. 125s should be no problem. You might even find that they make
    freemounting a little easier as the wheel is less twitchy. (I use a
    static mount with just a slight push on the uni which makes the back
    pedal rise slightly to form a step.)

    I bought my 28 with 110s and was able to idle it on a smooth surface
    straight away. I now ride mixed terrain on 102s, and only have problems
    on steep hills. Obviously, preference and experience come into it, but
    I'm sure that you will not regret swapping your 150s for 125s.

    You get to raise the seat an inch too, which make the unicycle more
    elegant.😎

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  4. I've used both 125's and 150's on my 29-er, and posted several threads
    comparing them- a relevant one is here-

    http://tinyurl.com/a8vfk

    IMO there are several factors involved,possibly the most relevant being
    how regular you're riding- for me, using 125's needs regular riding to
    give reasonable control for riding in places where there are pedestrians
    or cars, whereas 150's give sufficient control for if you have periods
    of not riding.

    I also suspect that leg length is a factor, with shorter riders doing
    better with shorter cranks and taller ones doing better with 150's.

    --
    onewheeldave - Semi Skilled Unicyclist

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  5. It's harder to do rollback mounts with shorter cranks but not much
    harder to do static mounts. Rollback mounts are perfectly possible on
    125s.

    It'll feel weird for a couple of hours because your legs are only going
    round in little circles, but you'll get used to it.

    I don't think it makes much difference to the squirlyness on angled
    surfaces. I found that a combination of having a slightly higher
    pressure in the tyre and getting used to riding on angled surfaces helps
    combat that and I don't get that any more.

    Joe

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  6. Thanks for that.
    I may try the 125s, I can always swap them back. The LBS probably thinks
    I'm bonkers anyway. (they didn't stock any front lights that would fit
    on my seatpost)

    Cathy

    PS onewheeldave, do you spin anything else?

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  7. cathwood said:

    *Thanks for that.
    I may try the 125s, I can always swap them back. The LBS probably
    thinks I'm bonkers anyway. (they didn't stock any front lights that
    would fit on my seatpost)

    Cathy

    PS onewheeldave, do you spin anything else? *

    Yes, poi, meteors and various juggly type things; why do you ask?

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  8. I ride a 29er with 102s. It's just a tiny bit tricky to mount.

    I always say that you have to mount it like you mean it. Always assume
    you're going to make it -- full of confidence and sans all doubt -- and
    you always will!

    --
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  9. on my 28 i have 89's and its acually kinda tricky to freemount.. i have
    like 9/10 ratio.. i miss everyonce in a while, idling is no where in
    sight.. but i just cant get enough of the speed. i fell like with 125s
    id feel to slow.. buts id be able to idle and stuff..

    Chase

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  10. onewheeldave said:

    *Yes, poi, meteors and various juggly type things; why do you ask? *

    Don't know really, I just had a feeling, maybe I've 'seen' you on
    another forum - Home of Poi or Fire Toys or something, or on a video.
    Fire definately springs to mind in relation to it.
    What d'you think?
    (PS I spin too - poi, swinging clubs, fire, staff etc)

    Cathy

    oops, I think i've thread jacked myself.

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  11. Wow, riding with 109's and 85's and things. I feel like a right woos,
    being cautious about 125's. Hang on though, I am a right woos. so that's
    ok then.

    Cathy

    (PS I don't know how to spell woos, but I mean wimp, woos just seems to
    describe me better. Sorry)

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  12. Cathy;

    It's Wus, at least here in the great white north! And your not a Wus!!
    No one who masters a uni can be considered to be a wus!

    I think you will be very pleased with 125's. Like any change in your
    uni set up, you will need time to get used to them, but not much!

    I use 125's and find the rollback mount very comfortable. It just takes
    a bit higher of a hop is all. And I think it is easier to idle with
    the shorter cranks (and you don't feel like your knees are going to kick
    yourself in the chest)!

    Steep hills take a bit of getting used to. Not going up, but going
    downhill. The momentum of the 29 inch wheel takes a bit more to
    control, but you get used to it very quickly!

    Give it a bit of time and 125's will feel very natural.

    I use 125's on all my uni's except my 20" freestyle on which I use
    110"s.

    Rob

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  13. Cathy;

    It's Wus, at least here in the great white north! And your not a Wus!!
    No one who masters a uni can be considered to be a wus!

    I think you will be very pleased with 125's. Like any change in your
    uni set up, you will need time to get used to them, but not much!

    I use 125's and find the rollback mount very comfortable. It just takes
    a bit higher of a hop is all. And I think it is easier to idle with
    the shorter cranks (and you don't feel like your knees are going to kick
    yourself in the chest)!

    Steep hills take a bit of getting used to. Not going up, but going
    downhill. The momentum of the 29 inch wheel takes a bit more to
    control, but you get used to it very quickly!

    Give it a bit of time and 125's will feel very natural.

    I use 125's on all my uni's except my 20" freestyle on which I use
    110"s.

    Rob

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  14. Quoted message said:

    *It's Wus, at least here in the great white north!*

    Errrm, I think it may be Wuss here in the great grey middle.

    Go for the 125s Cath. It isn't any more difficult to mount, just
    different, so your brain and legs will need time to adjust. If you do a
    running mount, because you have less leverage on the cranks, the
    momentum in the wheel has more effect in "lifting" you up to seat
    height. The bigger and heavier the wheel, the more this effect will
    work to your advantage. If you rollback mount then you will initially
    find it more difficult to control the speed and distance of the rollback
    bit.

    Because your riding will become smoother with shorter cranks, you may
    find that you are less likely to have problems with leg-strike on an
    adverse road camber. More speed will help too 😉

    Rgds

    Chris

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  15. Smoother is great.
    Bigger hop on rollback mount is manageable.
    Ok, soon as I come back from my hols, I'm changing the cranks.
    Thanks for your imput folks.
    Cathy

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  16. cathwood said:

    *Don't know really, I just had a feeling, maybe I've 'seen' you on
    another forum - Home of Poi or Fire Toys or something, or on a video.
    Fire definately springs to mind in relation to it.
    What d'you think?
    (PS I spin too - poi, swinging clubs, fire, staff etc)

    Cathy

    oops, I think i've thread jacked myself. *

    Probably HOP, i post there a lot- I've also put several vids up on the
    net, some of which involved fire,so it could have been those.

    I believe some one on this board was working on poi spinning whilst
    unicycling (one of the joes I think) and got to the stage of
    behind-back-weave while on one wheel.

    --
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  17. onewheeldave said:

    *

    I believe some one on this board was working on poi spinning whilst
    unicycling (one of the joes I think) and got to the stage of
    behind-back-weave while on one wheel. *

    Now there's an idea.
    My fav spinny thing is swinging clubs.
    I wonder if it would be easier than juggling on a uni?

    Cathy

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  18. Doing a normal weave with poi on a uni while riding along is easy,
    probably a bit easier than juggling 3 balls. Doing it while idling is a
    bit weird, you have to be able to do poi with your arms more than your
    body if you see what I mean.

    Most poi things I can do on flat ground I can do on a uni. There's a few
    moves where the wheel gets in the way and doing behind the back weave
    while idling I haven't got down. I can only do that while riding along.

    It's just occured to me that doing a leg wrap on a unicycle would be
    cool. You could do it out of one foot idling. I also kind of wondered
    about doing wraps around the seat tube, but I'm not sure if I can do
    that in a way that won't burn my legs off.

    I've attempted to swing clubs on a uni, but I'm rubbish at club
    swinging. It was not really much harder than doing them on the ground,
    but I don't know any clever moves with clubs.

    Joe

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  19. ok, LBS have swapped my cranks today.
    I haven't had much time to practice due to 'life' getting in the way.
    However, early indications are good. It doesn't feel that different to
    ride but slightly more agile. Slightly more difficult to feemount, but I
    managed twice.
    Hopefully I will have a bit of time to get used to them before the
    winter closes in.
    Thanks everyone.
    Cathy

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  20. cathwood said:

    *
    Hopefully I will have a bit of time to get used to them before the
    winter closes in.*

    Cathwood, I like reading your posts because your enjoyment of riding
    shines through what you write.

    You will have no difficulty getting used to the 125s. All it takes is
    self belief and a bit of practice. Just ride that sea front and enjoy
    the experience. In a year's time, you will wonder why you had doubts.

    Mike

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