Originally Posted by
Retro Grouch
In my opinion that's the biggest drawback to using CO2 - the lack of a second chance.
When I inflate a tire using CO2, the first thing that I do is to blow into the inner tube to give it shape, install the tube in the tire, and finally install the tire onto the rim. Then I check both beads all the way around to be sure the tube isn't caught under the tire bead anywhere. Only then do I use the CO2 to inflate the tire.
Checking both tire beads all the way around can be an enormous time saver.
That's why I carry a mini-pump and CO2. The mini-pump is used to put 20 psi or so into the tube to be sure it is good and seated properly. Then the CO2 is safe to finish bringing the pressure all the way up.