Tyre pressure for MUni

Discussion in 'rec.sport.unicycling' started by Mikefule, May 7, 2006.

  1. Mikefule

    Mikefule Guest

    I've never worried too much about tyre pressure. Just good and hard for
    road work, and a bit softer for off road. I have always used the
    cyclist's traditional pressure gauge: a pinch between thumb and
    forefinger.

    However, now I have a "proper" Muni with a big fat 3" tyre, I'm in new
    territory. I did a ride today, and tried a few half-hearted hops over
    small logs. Couldn't really get any spring or lift. Obviously I have
    about zero technique.

    When I got home, I tested the tyre pressure with a gauge and it was
    19.5 psi. That was surprisingly low for me (I'd have guessed 30
    something), but I vaguely recall some of you expert types ride with
    much lower pressures for Muni.

    Comments and advice, please?


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  2. I've been using my Muni with a pretty high tire pressure because the
    tracks in Holland are quite smooth, you might want to put in as much
    air as you can and then go to the trail and keep letting some air out
    till you ride nice 'n smooth, that's what I do when I'm going for a
    trials run.

    Toodles


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  3. tholub

    tholub Guest

    Generally for real MUni, I would recommend that you run the tire at the
    lowest possible pressure you can run it without bottoming out.
    Depending on your weight, on a 3" tire that will probably be somewhere
    between 15 and 20 psi.

    Low pressure won't suddenly make you into a jumper; hopping is all
    about technique. Low pressure helps only because it makes the timing
    easier, as well as the landing.


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  4. harper

    harper Guest

    Mike-

    I'm 13 and a half stone and I believe I weigh a bit more than you. I
    run my MUni tire at 18 psig and it only bottoms on drops of 1 to 1.5
    meters. Low pressure like that makes MUnis difficult to ride on
    pavement. Can I mix any more units in there?


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  5. My 3" muni tyre seems best at about 15-20psi, which is ridiculously soft
    from this cyclist's point of view. Even my mountain bike tyres
    (cross-country tyres, 1.9 inch) are usually at 40psi or so. If I'm
    riding to work, which involves some road riding, I'll run it slightly
    harder (approaching 20psi), but really soggy works best for the rocky
    trails round here. I did actally bottom it out once on a ride a couple
    of weekends ago, and when I came to pump it up it wasn't much over
    10psi! I've heard people say that a rough starting point for a 3" tyre
    is 1psi for every 10lbs of rider weight. I weigh 12 stone, or just
    under 170lbs, so by that scale my tyre should be at 17lbs, but I reckon
    I often run it softer than that.

    Rob


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  6. Tim Morin

    Tim Morin Guest

    I ride a 24x3 Duro tire, and I've been riding between 20-25 psi. I
    weigh 150 lbs, and I ride mostly on hard dirt trails, with some soft
    sand and mud.

    I'm new to riding Muni, so I'm not sure if it too much psi, but so far
    it seems good. I can tractor thru tough terrain, and pick up good
    speed on easier sections.


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  7. unijesse

    unijesse Guest

    harper wrote:
    >
    > Can I mix any more units in there?



    how bigs your tire? how bigs the uni? how many millimeters thick are
    your shoelaces?

    :)


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