Helium in Tires

[Dr Game]

Probably a stupid idea... but I'm sure someone must have tried it before... Just wondering how well does helium in bike tires work... Would it take off 5-6 lbs on your bike if you put in about 60psi each in your wheels? Think that would make it worth it? I don't think the helium would escape through the tube that quickly either, just wondering if anyone knows anyone who's tried to do something like that and if it's worth it?

[Giant1118]

60 psi? who runs that much pressure in their tires? Its been discussed before, its dumb. Weight saving would be a couple grams and you would have to refill the tubes often.

[eturt9]

5 or 6 lbs. haha. I don't think so. :momaru:

[darkside]

Fill a big balloon with helium and tell me how much weight it can lift. Last I checked, even a big set of birthday balloons could be held down with a little plastic weight.

You wouldn't be able to notice the difference in your tires.

[CoppellStereo]

im pretty sure you will loose about 20 grams with the helium at about 30psi, do the math :luke:

[KMT]

And XC riders use CO2 whit that automatic pump.
That adds about 20 grams to their 200 g wheel :D

[Cryo-Cube]

Fill a big balloon with helium and tell me how much weight it can lift. Last I checked, even a big set of birthday balloons could be held down with a little plastic weight.

You wouldn't be able to notice the difference in your tires. Besides, if you put more pressure in your tubes, it doesnt get lighter lol :hahano:
It gets heavier, like every other material known to men

[KoxxLevelRider]

this was discussed a few years ago
search..

[va_tick]

this thread is ........

[Elan]

ok. this is like the 800th time a post about this has appeared on a trials website.

1: your tubes are too porous to hold helium
2: if yo uthink you need helium in your tires for any reason, youre a douche.

[Juhan]

anything you put in your tubes will make them heavier, the more you in there, the heavier it will be. so, if you want to save weight, pump all the air out of them :naughty:, the extra prise will be, that if you have no pressure in your tires, you won't be bothered by snakebites :ugh::naughty:

[justfuzzit]

I doubt the weight difference would even show up on a scale.

[trauma100]

I would favor filling your large and small intestine with helium for weight savings

[diamondback2222]

Hmmm....it's fun to think about anyways.....:momaru:

[RT Wolf]

Heh, everybody's just being harsh for no reason. Helium doesn't really work like it does in cartoons, you need a helluva lot of it to make any difference (someone did the calculation in a thread a while ago). It's not gonna make a difference. Keep thinking and trying, though, you'll eventually hit something that'll make a difference.

[trialsrider50]

you'd probably do better filling it with really fucking hot air. plus it would soften up those creamy tubes and try-all tires right?

[jackflash]

hehe, just worked it out, its all pretty approximate and i took some numbers a little off to simplify it all, but 29psi, about a 2.4" tire at 27 degrees, and we end up with a tire full of nitrogen weighing 4.4grams, while helium ONLY weighs 1.2grams. so a 3.2 gram difference, not quite worthwhile

[tomacropod]

** note to non-geeks, normal atmospheric air is mostly nitrogen **

- Joel

[Elan]

i think everyone should run pure hydrogen gas in their bikes.

[Bryan]

i think everyone should run pure hydrogen gas in their bikes.

Oh the humanity:joshers:

[tomacropod]

"she shall be called Hindenburg. Now all my crashes will be historical disasters"

- Joel

[Peace]

Fill your heart with helium, it will sound funnnnny!

[rush]

"she shall be called Hindenburg. Now all my crashes will be historical disasters"

- Joel

:rofl:

Was that from BT.com days?

[KERNAL KLINK]

instead, just shit before you ride.
i think thats should help you out on the weight:eek3danc:

[rocpyro]

If you fill the tires to 60 psi, it would actually be heavier than at 30 psi. Its not based on how much helium, but the density. Higher psi, higher density, higher weight. The reasion helium floats is because it is less dense that air at the same pressures. And besides, helium gas is composed of molecules that are much smaller than the gasses that compose air, so your pourous tubes would leak much quicker than air.


And besides, at the volume tires are, the weight savings would be <10 grams. Just drill bigger holes in your rims.

[tomacropod]

:rofl:

Was that from BT.com days?

That was Afrobot. I think it was one of the first quotes to become a signature here on OT :)

- Joel

[Dekes]

It's a dumb idea. wheight saving and buyoyancy (sp?) are neglectable.

[AgrAde]

just fill a frame with dense antimatter. it would be awesome, trust me.

[rush]

How much for a baggie of antimatter? :naughty:

[xALmoN]

anti-matter of what? oxygen? aluminium?
you have to be clear about these things.

or do you want positrons? or whats the anti-proton? and anti-neutron?

[dubtrialsin]

i bought a baggie of some anti-chron for 30 bucks
if that helps...?