Mosa 16g Threaded CO2 Cartridge's, Silver(pack of 10)

It's cheaper than most.. Maybe because each canister only contains 15g of CO2 rather than the advertised 16g.I checked 5 empty canisters out of the twenty I purchased, and compared the weight of the empty canisters vs the remaining 15 full ones.The full canisters all weigh exactly 58g, against the empty canisters which all weigh exactly 43g.To put that into perspective, 1gram of CO2 occupies approximately 500ml (1/2 liter), or 0.9 pints in volume at room temperature at sea level. I am only a few meters above sea level right now, in a room which has an ambient temperature of about 19 degrees centigrade.Does that account for the missing gram I wonder...Maybe the atmospheric pressure is the reason.. The barometer says 1.018 mBar.. so the volume of air that fills the empty canisters weighs 1g at 1 atmosphere.. (that makes sense).ahh well I was only curious.I don't know exactly what volume my bicycle tires hold when they are fully pressurised, but 0.5 liters seems like a functionally significant volume.For a company selling millions of liters of gas in tiny little canisters, I'll guess that 1g adds up to a lot of money over time.Hey ho, I'm sure nobody cares about 1g of CO2, so there we are, you might be getting diddled out of a gram of gas, or it might be the weather an my terrible maths.Still cheaper than the rest of the sellers, and a very good deal for 20 x 16g (or even 15g) tiny canisters of noxious gas that you use to fill up your bike tires in a hurry, and the delivery was pretty fast too.

What a 'get out of jail free card' being able to repair a puncture at the road side is. These cartridges work perfectly with the kit i carry for my motorbike, replacing the original cartridges used previously.

Good value compared to cycle specialists

The price of these items in smaller quantities is ludicrous, this was such a good price I was worried about what was going to turn up. The item was exactly what I wanted though.

Very useful for re-inflating bike tyres when out on the road! You need an adaptor to pierce the threaded end of the cartridge and convert to the bike tyre's valve, of course.

I have not had to use any...So far...ouch why did I write that..

Great value and as far as I can tell they are the same capacity as the more expensive ones.

Almost fill one fat bike tyre. Certainly easier than a pump and much faster too, but you will go through the cartridges at a rate of knots, making for an expensive option. Now if they were filled with laughing gas ...