Could a 16g CO2 cartridge fill a 700x32 tire up to 90 psi?
08-03-17, 05:05 PM
#3
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pump......
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(looking for Torpado Super light frame/fork or for Raleigh International frame fork 58cm)
08-03-17, 05:18 PM
#4
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According to this chart, you're right at the limit of a 16g cartridge.
https://planetbike.com/files/25gCO2_inflation_guide.pdf
How close do you need to 90psi? If you're ok with 80psi until you get home, then 1 should be fine. It depends on your riding style, etc. Personally, I have no problem riding a little low until I get home, just ride a little more carefully to avoid a potential pinch flat. I would just carry two 16g cartridges, initially. Then when you get a flat you can see how it does. If you decide you need more air, use the 2nd cartridge, and then replace with 20g.
https://planetbike.com/files/25gCO2_inflation_guide.pdf
How close do you need to 90psi? If you're ok with 80psi until you get home, then 1 should be fine. It depends on your riding style, etc. Personally, I have no problem riding a little low until I get home, just ride a little more carefully to avoid a potential pinch flat. I would just carry two 16g cartridges, initially. Then when you get a flat you can see how it does. If you decide you need more air, use the 2nd cartridge, and then replace with 20g.
08-03-17, 05:46 PM
#5
Yo
To answer your question, yes, 1 16 will do that. That's as long as it all goes into the tire and none of it escapes around the valve stem. You'd probably be better off with the 20.
08-03-17, 06:57 PM
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I would carry the 20. It will allow for wiggle room if slightly pre-filling the tube prior to install and leakage.
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08-03-17, 06:58 PM
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I carry both a mini-pump and a couple of 16 gm CO2 cartridges. The pump is used to be sure the replacement tube holds pressure and is seated properly. I pump to about 20-25 psi and then use the CO2 to get to full pressure. Done that way a 16 gm cartridge will certainly bring a 700-32 to 90 psi.
Yes, the pump will, eventually, fill the tube to full pressure too but i'm not that patient.
Yes, the pump will, eventually, fill the tube to full pressure too but i'm not that patient.
08-04-17, 08:14 AM
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A single 16g cartridge should get a 700c x 32 tire rideable, but it won't get it up to 90 PSI.
According to most charts I can find online, a 16g cartridge can potentially get a 700c x 28 tire up to 88 PSI. A 32 mm tire is bigger than that, so pressure will be lower. To give you an idea of how much lower, those same charts show that a 16g cartridge can only get a 700c x 35 tire up into the 50's. (The charts I've seen range from 49 to 58 PSI.)
The attached chart from Genuine Innovations seems to hint that a 20g cartridge would get a 32 mm tire to roughly 90 PSI.
According to most charts I can find online, a 16g cartridge can potentially get a 700c x 28 tire up to 88 PSI. A 32 mm tire is bigger than that, so pressure will be lower. To give you an idea of how much lower, those same charts show that a 16g cartridge can only get a 700c x 35 tire up into the 50's. (The charts I've seen range from 49 to 58 PSI.)
The attached chart from Genuine Innovations seems to hint that a 20g cartridge would get a 32 mm tire to roughly 90 PSI.
