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Alternative/Cheap sources of threaded CO2 cartridges?(24 posts)

Alternative/Cheap sources of threaded CO2 cartridges?wilsonc
Aug 14, 2002 7:39 AM
Anybody know where to get 16gm threaded CO2 cartridges for less than ~$3-4 each. This price just seems outrageous.

Aug 14, 2002 7:47 AM
Looked for weeks, finally gave up.cory
Aug 14, 2002 7:49 AM
Couldn't find them anywhere. I have a lot of flats (big thorns even on pavement, and lots of glass from the teen-age beer drinkers throwing evidence out the window). One week I realized I'd spent $25 for CO2, and I went back to my Zefal hpX.
Have you tried some tougher tires? (nm)mja
Aug 14, 2002 8:44 AM
re: Alternative/Cheap sources of threaded CO2 cartridges?legs
Aug 14, 2002 8:00 AM
the dreaded frame pump is the only other option..
Glad I saw this..DINOSAUR
Aug 14, 2002 8:05 AM
I was thinking of switching to 16gm, think I'll stick with the 12gm. I pack a very small Torelli Aria frame pump and use it to mount the tire and inflat to around 40psi then finish off with co2...
Glad I saw this..pmf1
Aug 14, 2002 8:25 AM
The unthreaded ones you can get really cheaply at WalMart or sporting goods stores. The 16 gm systems are just too expensive. Besides, the 12 gm inflates a 700x23 tire to about 100 psi -- easily enough to get home on.
Does it really inflate that much? Other C02 quest as wellColnagoFE
Aug 14, 2002 8:47 AM
Was thinking of finally getting a C02 system and the literature I read says that 12g only gives a 700x23 about 70-80 PSI? The 16 is supposed to go to 120. Also any thoughts on the Innovations Ultraflate? Supposedly uses threaded and non-threaded C02. Any advantage for threaded over non? Other than the obvious that you can use a much smaller chuck for the threaded?
Does it really inflate that much? Other C02 quest as wellpmf1
Aug 14, 2002 9:12 AM
I've got an innovations second wind that I've never used. Its pretty big and you can't store a cartridge inside it. It is nice that it has some kind of pump as a backup (but God have pity on you if you had to rely on it -- minipumps are bad enough). The other one I use all the time is smaller and holds a cartridge inside -- I forget what brand/model it is. You screw the top down tight and push down on the lever to inflate the tire.

The threaded units look lots smaller, but then you're stuck buying threaded cartridges. You can get the unthreaded ones for $0.50 (they're used in air guns). The unit I carry is much smaller than my minipump.

I've never checked the pressure, but it feels like a lot more than 70-80 psi. I carry a valve extender because you can lose lots of CO2 when you try to inflate a tube barely sticking out of a deeper rim such as a Ksyrium. Always figured 16 grams were targeted for mtn bikes.

CO2 leaks out overnight, so I always pump the tire up when I get home.

I like it better than that pesky minipump. Nothing beats a Zefal full size frame pump though (I can't mount one on any of my bikes).
this is the model I was thinking of...not a pump C02 comboColnagoFE
Aug 14, 2002 9:48 AM

Looks like it'd do the job. ANyone use one of these?
this is the model I was thinking of...not a pump C02 combopmf1
Aug 14, 2002 10:21 AM
Yeah, that's the one I have. It works great.
Does it really inflate that much? Other C02 quest as wellbrurider
Aug 15, 2002 8:42 AM
I have the Innovations with a pump for myself, bought it before I realized they made one with a "smart head" without a pump. Bought non-pump one with the smart head for my wife's bike. Tried being environmentally correct by carrying a mini-pump (allegedly a decent one) for 4 years and usually averaged a flat every couple thousand miles. That was tolerable until my last trip this summer to the Outer Banks and flatted 3 times. Damn near killed me trying to get 40# of air into the tires with the mini. Went to the LBS and got the Innovation and within a week used it on my wife's cross bike. I also carry 3 cartridges with me, just in case.Go to Wal-Mart for the CO2. Thanks to the poster mentioning CO2 leaking out, never gave it a thought.

Will never by a mini pump again, maybe a frame pump, but with the CO2's don't see any need.
Works welldirthead
Aug 14, 2002 9:50 AM
I have used the Innovations Ultraflate for 3 years. It works great. I use 12g. unthreaded cartridges purchased from Walmart. They will inflate the 700x23 tire to ~80psi. I will then use about half of another cartridge to get the pressure up. The unused portion of the cartridge will leak out over a few days, but it is still much cheaper than using threaded cartridges. I usually carry 4 cartridges in my pack, 1 in the inflator (without the cap screwed down, so the seal hasn't been broken), and 3 loose. This system has worked well for me, much better than a pump. A box of 12 cartridges will last me over a year usually.
Flip the CO2 cartridge over, then screw on the cap.js5280
Aug 14, 2002 2:00 PM
The cap will screw on enough, it's not loose, and you don't have to worry about puncturing the seal. Works great for me. CO2 rocks! I use an older Ultraflate too. Skipped the thread cartridge systems unless you're a rich weight weenie.
Hope I don't jinx myself, but...DINOSAUR
Aug 14, 2002 8:52 AM
With my method I can get up to 120psi and can continue my ride. Since I got tired of messing with "f's" and frame pumps and made the switch to co2, I've had a total of one flat on the road since July of last year..I've got about 10 extra 12gm co2 in stock and pack 3 of them on my rides. For some reason the flat god's don't like co2..
why not use Dinosaur as the initial inflator?ET
Aug 14, 2002 11:01 AM
If you know I mean.
re: Alternative/Cheap sources of threaded CO2 cartridges?JackDanielsFSU
Aug 14, 2002 8:54 AM
I get 16 gm threaded ones from my lbs for only $2.50 a peice
re: Alternative/Cheap sources of threaded CO2 cartridges?gregario
Aug 14, 2002 9:08 AM
get a system that uses UNthreaded cartridges and you can buy a box of a dozen of them at a discount store for cheap. Look in the sporting goods/air rifle area. Prices that shops charge for these things is a ripoff. If you need 16g worth of air just use a 12g and part of another using a controllable system. It will still be much cheaper than buying them at a shop. I don't recall how much I spent but I bet it was probably 0.50-0.75 cents a cartridge easily.
changing cartridges during racing? also 650 pressures with CO2?wilsonc
Aug 14, 2002 9:35 AM
Well, i usually carry a frame pump for training, but i was thinking for racing that changing 12g cartridges would take a bit longer, and that is why i carry a 16g.

Another question is that on my tri bike with 650 wheels, i have never used the CO2 inflator with it yet. what kind of pressures are people getting with a 12g cartridge on 650 wheels?

am thinking of gettting co2 but am worried I'll get stuckishmael
Aug 14, 2002 9:48 AM
How fail-safe are they It seems some people carry two or more cartridges but since I like going as light and bulkless as possible I'd probably stick with one, are my chances good?
Not a good idea.dirthead
Aug 14, 2002 9:52 AM
If you patch a tire, and miss a hole or the patch doesn't stick, you are SOL. I have carried 4 cartridges for several years now, and have never used more than 2 on a ride, but I like the safety factor. I would never carry less than 3 under any circumstances.
Seems like a bad idea.djg
Aug 15, 2002 9:41 AM
A second cartridge is just not that bulky or heavy (and neither is a third). I mean, if you're racing, leave the seat pack off entirely and hope for the best or rely on support. But I don't see the objection to carrying a few extra grams on a training or recreation ride. In my experience, you rarely get a bad cartridge. But rarely does not equal never. Plus, I find it hard to believe you've never flatted twice on the same ride. It's bad luck, sure, but it's not as if it never happens. So then what? Walk home?
re: Alternative/Cheap sources of threaded CO2 cartridges?Offthefront
Aug 14, 2002 10:09 AM
I found some 16gram Threaded on ebay ....a guy has a site called ..he was bidding 10 16 Co2's on ebay ..I got several of them for like 7.99 and shipping was like 5.99 for any amount you got ...I got about 50 of them it averaged out about a buck a piece ..they were real nice Blackburn ..Anyway I was telling someone else about them And tried to get some more and he still has em on his site but when I ordered them he wanted like 22 for shipping emailed him and he responded that he de doesnt have anymore at this time ...every should email him and tell him there is a demand ..I have looked everywhere and you guys are right ..threaded are very difficult to find except for 9.99 for a pack of 2 at LBS ...latr
12 gram 80-90 psi for 20-23cc thats my estimateakatdog
Aug 14, 2002 1:45 PM
Ride On