15 Pack of 16 Gram Threaded CO2 Cartridges for All CO2 Bicycle Tire Inflators with Threaded Connection Quick Air Refill for Bike Tire Repairs - Cartridge for CO2 Pump, Road or MTB Bicycles

Great product & price. They work every time. I use them with a Portland Design Works Shiny Object CO2 Inflator Head. After the ride or before the next ride check tire pressure & refill with floor pump. DON"T LEAVE HOME WITHOUT 2 OF THEM.

If you need CO2 cartridges for an inflator (I recommend the Lezyne Alloy Drive inflator, with its snazzy alloy case for the cylinder and adjustable valve), I recommend these. In a large size box like this, I don't expect to run out anytime soon, as I use the CO2 inflator for emergencies only. If time permits, I use the pump in all my bike kits. A pump works better long term, as CO2 leaks quickly from a tire. When used, I always drain the CO2 and refill with compressed air once home.Just note that they are threaded (some inflators use threaded and others non-threaded cylinders).

I was finally able to try these out when I got a flat last week. These work well with a CO2 bike pump and quick inflated a tube. One cartridge was enough for a 700 x 23 tube to 90+ psi, and I had some gas to spare in the cartage after. The pump wouldn't fit back into my saddlebag connected to the pump, so I am not sure how much more gas was in the cartridge, although I don't think it would be a problem inflating up to a 700 x 28 tube, but not so sure how much bigger it could inflate. I have heard that this is why some people like to carry a 25g cartridge, but these worked out fine for road bike tubes.

I purchased these for the Pet Convincer and they work great in it. The threaded cartridge is threaded well and is not difficult to screw into the device. The only reason I didn't give it 5 stars is because they did not come in a box as shown, they were loose in another box with a few styrofoam "peanuts" in with them.

priced right, and good quality, if you really ride a bike a lot you need these, great for instant inflations on the side of the road or trail!these have kept me from walking home a number of times when i got a flatadd a patch kit, a couple tire irons, and an inflator, and you can fix about any tire issue anywhere, even when there is no air hose available, these are a must have and usually sell for about 3.00 EACH in a store

I was skeptical when I first received these. They did not come as pictured. What I got was a bunch of loose cartridges in a ziploc bag. There was no writing on them and where they are sealed isn't perfectly flat. There is a slight dimple on most of the seals. With that said, I have had the chance to use these several times this summer. To my surprise they work perfectly. Don't waste your money at your LBS on co2 that's 3 times as expensive. These do exactly the same thing as their pricey counterparts!

Just a great value if you ride MTB a lot like we do here in CO and need Co2s. The work great as they should. Cheers

good price and they work well in my bike tire pump. No complaints.Much faster way to fill a tire than using a small hand pump on a trail. :-)If you are Prime... They will come US Postal Service. Some restriction on shipping.It came quickly.Update after several flat tires...Good for getting 40 Pounds of pressure in the tire..NOT Good for getting more than 40 Pounds... Even using 2 of them.Most road bike tires... Need 80 Pounds...