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Old 03-05-2007, 08:55 PM   #1
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CO2 Tank at the track

I have a 20 lb C02 tank leftover from when I had my 4x4 toyota truck. Anyone know of any problems using that to fill my tires up at the track. I've heard of some people using nitrogen, but not carbon dioxide. A 20 lb bottle should last a looong time for just airing up tires. I know the rock krawling crowd uses these tanks for when they air down their tires on the trail, but I've never seen them used for sportbike tires. Plus you can run air tools as well, but dont expect to run them for too long though. Anyone heard of this before?

My setup is similar to this.

Last edited by andre3k; 03-05-2007 at 09:00 PM.
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Old 03-05-2007, 10:17 PM   #2
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I use a dive tank myself, the purest air you can get. I'm not sure about CO2, the main concern would be expansion with heat. May expand faster or more than air or nitrogen. I usually get a 3-5 psi increase with air after heating.
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Old 03-05-2007, 10:27 PM   #3
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it is a lot heavier then air and will add to your unsprung weight.
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Old 03-05-2007, 10:32 PM   #4
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make sure you have a regulator, so it doesnt put 1200 psi into your tires/air tools.
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Old 03-05-2007, 11:09 PM   #5
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Since it's unclear how CO2 will act inside a tire it might be wise to let it out and refill with air. Or just give the tank to me and I will for sure smile and say thanks.:icon_bigg
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Old 03-05-2007, 11:24 PM   #6
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Originally Posted by ysr612
it is a lot heavier then air and will add to your unsprung weight.
While I agree that c02 is heavier than air (1.5x), i don't know if it contributes to unsprung weight. see the wikipedia link below.

Granted if it does, will the avg rider be able to tell the difference between a tire filled with air vs c02 vs nitrogen? Basically I just wanted to know if its safe to run in sportbike tires.
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Old 03-06-2007, 01:16 AM   #7
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I just borrow an air hose from one of the vendors. Works everytime!~

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Old 03-06-2007, 01:24 AM   #8
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