rec.sport.unicycling · Public discussion

tyre pressure

Started by specificpig · · Last activity · 6 posts · 537 views

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rec.sport.unicycling
Published
22 May 2004
Last activity
24 May 2004
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specificpig
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  1. i have a 2.5 x 20 inch tyre and was wonderin what the ideal pressure is
    for trials? would i need to lower it for big drops?
    jack

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    specificpig
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  2. Big drops/gaps require a higher pressure so you don't bottom out your
    tyre and hammer the rim through you're tube.

    Although, softer tyre pressure means it's easier to learn to hop, and a
    cooshier feel.

    You'll know when it's time to increase the tire pressure as you start to
    bottom out the tire hopping and doing stuff.

    Sam
    http://perthunicyclists.tk

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  3. Perth is right. I try to find a happy medium where I don't bottom out my
    rim or have the tye fold to the side easily, but soft enough to hop
    comfortably with. I just pump the tyre up fairly hard and play around
    then let a bit of air out and so on and so forth until you're happy. I
    call it trials and error! You see what I did there?! Ha ha! 🙂

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  4. yip i see wot u have done there, how droll. So would u class 40psi as
    soft or hard then?

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  5. Force over area means that the pressure for one size tire is different
    fro another. Example: I have a 24 inch tire and it says 40 psi
    reccomended. Your 20 may say something else, and his 29 will be much
    higher.

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  6. PopeSamXVI said:

    Force over area means that the pressure for one size tire is different
    fro another. Example: I have a 24 inch tire and it says 40 psi
    reccomended. Your 20 may say something else, and his 29 will be much
    higher.

    Generally, tyre pressure has more to do with tyre width than with tyre
    (+wheel) diameter. Wider tyres allow lower pressures.

    Klaas Bil - Newsgroup Addict
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    be sure to remove the saddle and simply sit on the seat post. this is far more comfortable - tennisgh22 on the comfort of Savage unis

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