I carry at least 3, unthreaded, 12 g cartridges for 23 mm tires. One unpunctured in the device and two extra on the side. One usually suffices. The rest are for multiple incidents. No pump. Even the best of are unpleasant (to me) to use. I go back to the days of Silca pumps and the better ones that succeeded it in the full size frame-mounted genre, then the mini- and micro-ones we have today. None of them comes close to CO2 for convenience and speed.