Does CO2 actually work for you guys? It seems that when I use it, I can usually get about 20 minutes of riding in before I get another flat. I’m probably getting pinch flats from not having enough air in there. CO2 always seems to let me down in the field, and if the first shot doesn’t fix it, I’m SOL. A slim Lenz pump has been much more reliable for me (and less bulky, and lighter).

Obviously CO2 has to be matched to your tire size, and given I am usually riding 28mm, 35mm or 47mm, or 54mm tires, I'm not up to having a case of different sized canisters.

There have been too many times when CO2 let me down - either from leading to a pinch flat, or getting something else stuck in the tire, finding my canister is not compatible, not fully inflating, or something that requires a second repair when I am out of canisters. Tire pump - works 100% of the time.