tyre pressure

i have quite a low tyre pressure, so do most people i know. but if it is
too low it can fold when you hop sideways.

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amanda.gallacher - about a level 6/7

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alot of people use 35 psi.

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heavy metal unicycling - Loveland Unicycling Club

People who throw stones at you are quietly saying, "shoot me," they're
just not being verbally expressive enough.
-harper
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Alot depends on your weight. I'm 200 lbs and use about 22psi. I go a bit
softer on trail riding. For trials I have to stay at 22 or I get fold
over on big side hops.

--
pdc - Wacky Fringe Sportster
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You have to figure out what works for you.
Just fill it to around 35 psi and keep taking a littel out and riding
some more, you will know whats right when you get there.

--
KcTheAcy - Ohh Baby

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Only use the suggested psi numbers as a general guideline. "Proper tire
pressure" depends on several variables, all of which can change the
answer by a lot:

- Rider weight

- Tire width (air volume)

- Type of riding (Freestyle? Trials?)

- Your style of riding (hard or soft landings?)

- Riding surface (flat ground or sharp rocks?)

I grew up riding unicycles with 1.75" tires, in gyms and out on paved
ground. 60psi was what Schwinn recommended, and we often went much
higher. Lower indoors, to keep your unicycle from spinning
uncontrollably. Higher outdoors to keep friction down for easy turns and
less tire wear.

But perhaps the common denominator of tire pressure is how much do you
need to keep your rim off the ground? That is your base amount. There is
no fixed number, because it's affected by all of the factors listed
above. From there, you can add pressure for more bounce or a "stronger"
tire (won't fold over).

Trials often requires compromises. You may be jumping onto small objects
that can deform your tire down to the rim. But if you add too much
pressure, you won't have the traction you need for most of the time. So
you have to be careful as well.

For specialized situations, you can go lower. For example, in one of the
best examples of low-pressure I've ever seen, Chris Reeder won himself a
case of beer from Bruce Bundy by riding (not hopping) across a sandy
volleyball court at De la Veaga Park in Santa Cruz. He kept letting more
and more pressure out of his fat MUni tire to be able to stay on top of
the sand. At his final pressure, he was almost completely unable to ride
on the pavement along the edge of the sand because his tire looked
almost totally flat. But it worked in the sand...

--
johnfoss - More Moab Fun

John Foss, the Uni-Cyclone
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redhead said:

*PDC what would you suggest for people 115 pounds ? And whats the
advantage of high psi verses low psi?😕 *

Lower pressure cushions and gives you some spring when hopping. High
pressure is like jumping on a brick. Things don't bounce real well.

Low pressure should not be so low that you bottom out on the rim when
hopping. You don't want to be hitting on the rim when you land. So far
as psi, you have to figure out what works for you.

Low pressure also lets the tire "fold" over if you land on it crooked.
High pressure is fine for real smooth surfaces so long as you keep the
wheel on the ground. When you jump/hop, things are a lot more
comfortable if you let some air out.

--
mucRider - From the Over 50 Group

It is wise to invest in your happiness. - Harper
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Ok thanks all
jest to inform you I like the street/trials

--
redhead

i rock
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brakin them for no one"
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I've paid pretty close attention to the question of tire pressure over
the last few months--including measuring said pressure with a calibrated
gauge--and for Muni riding, I've discovered this much.

IME, the only advantage to having a low tire pressure is found on truly
grim rolling over super steep, rocky runs. But if the pressure is too
low you'll "rim out" and get pinch flats and a lot of tire fold over, as
well as getting bucked off because the low presure produces a very
bouncy tire. Oddly, a slightly higher pressure allows for even higher
hopping once you get used to hopping with a quick snapping movement. A
higher pressure also makes for easier traction on slanted surfaces.
With a mushy tire you get side to side movement making still stands
between hops quite hard. Just yeserday I was practicing hopping on some
domed rocks and couldn't keep the gap going till I increased the tire
pressure. The difference was really dramatic. The mushy low pressure
tire was squirely on the rocks, whereas the higher pressure tire bit
like a bear. A mushy tire is also a lot harder to steer.

I weigh 210 lbs and like to run a 24 X 3 Durro or Gaz at about 26 psi. I
have noticed that when I was just starting the lower pressure was
actually better, but as my skillset has slowly improved I've found the
higher presure means higher performance.

JL

--
vivalargo - Santa Barbara Unicycle Club
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I weigh 160 lbs. and ride about 25 psi in my 2.5" wide Luna... I bottom
out occasionally, but only when hitting a narrow landing (2" or less) on
a 90 degree angle. You need to experiment and find what you like best.
For technical gaps like that, you want your pressure low enough that you
won't bounce off, and high enough that you won't smack your rim too
hard.

You'll find a pressure eventually that lets you compress and get a good
spring, minimal tire foldover, and not bottom out on small landings.

How much do you weigh? What tire/rim are you using?

--
fcwegnm0b - HammerTron

"So the nurse was telling me about what you did to your ankle... and I
all got was 'unicycle', 'mountain', and 'filming'"
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ME?? 115 on my best days( meanying thats the highest iv been so far) I
am riding on a K RAD 2.125 with what ever rim comes on the torker DX. I
am starting to get into Street/ Trials. HOPE THAT HELPS YOU HELP ME.
Also what do you all consider low and high. so that i have an idea what
you mean by when i ride at a higher psi.

--
redhead

i rock
"i only got two thing in this world, my word and my balls,and i ain't
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Quoted message said:

so that i have an idea what you mean by when i ride at a higher psi

for some like 700c road uniers this could mean 50+ psi for trials 30-45
psi and for free style 40-60psi or more i dont know

--
unicyclepa

www.unicyclepa.com
we suck
but its all good
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For trials, I consider above 30 psi on the high side, and below 20 on
the low... but, like John said, appropriate tire pressure is dependent
on rider weight, tire width, rim width, style of riding, and terrain.

Finding what pressure YOU want is simply trial and error.

Dave

--
fcwegnm0b - HammerTron

"So the nurse was telling me about what you did to your ankle... and I
all got was 'unicycle', 'mountain', and 'filming'"
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