16g / 25g Threaded CO2 Cartridges - CO2 Cylinder for Bike Tire Inflators - Great Refill for Mountain or Road Bikes Tires

Great stuff to have in your saddle bag as an emergency boost, or to set a tubeless tire on a rim without a compressor. Very reasonable, and the extra volume of the vials is always a welcome bonus.

These are an economical refill for self inflating life preservers. I bought a mixed box with the sizes that fit the various inflatable PFD's I have. Certainly also work with bike tire inflators (which I have two types of) but I have had mixed results using CO2 for bike flats...

Works great for my 29” MTB as well as my 27.5+ fat tires

First of all, the 25s are very hard to find at bike shops and when they are available, they are very expensive.Second, with wider tires, the 16s and 20s just don't have enough CO2 to get you through the ride.These are not for use with tires that are 28mm or smaller. You would run the risk of over filling the tire.

I use these for my M-16 flotation system. Much cheaper than the one you get for sixteen dollars:)

I mountain bike in areas where I can be miles away from my vehicle, so I carry all of the tools to fix basic issues. This includes a CO2 pump and flat repair kit, to fix a flat tire. Since you have to carry everything you want to bring, the smaller and lower weight the better so long as it works.These Kong Ming CO2 cartridges fit the bill for me, as both small and functional. I run 27.5" MTB tires tubeless, and these will fill one tire enough to get me out of trouble and back to the rig. Worst case, I also carry a tube to throw in the tire, which these have the volume to inflate. I carry the smaller 16g tubes, since they fit better in my pack.The labeled tube is the Kong and the standard silver tube is from a previous purchase. They both fit my CO2 inflator, shown connected to the old tube. The biggest difference, as mentioned by another reviewer, is thread quality. The old tube threads smoothly into the inflator, while the Kong brand take a bit more force to thread in. At first I thought I might have it cross-threaded, but it turns out the threads just are not as crisp and clean. The tube did thread in, but not until I realized it was not cross-threaded and twisted harder. This is the reason I deducted one star, but not a big enough issue I would avoid this brand.

I liked the price and the functionality of the cartridges.

Good value, correct size for MTB tires