Originally Posted by Eric F

I have 2 CO2 cartridges and a TPU tube for each of my 3 on-bike tool kits (road, gravel, MTB), but despite many years of experience changing flats on the side of the road, I've had to make the call of shame a few times. Sometimes it's been an issue with the CO2. Sometimes it's been a mistake that ruined the tube. I carry a mini hand pump in the bottom of my hydro pack for off-road rides of more than 2 hours, but do not carry a manual pump on the road (I live and ride in suburban LA). I am intending to replace CO2 with a Cycplus AS2 Pro electric pump, based on a shootout review from a trusted source, and good experiences by friends. As I see it, the advantages are that it's still much quicker than a mini hand pump, there's no CO2 cartridge waste, and if something is going wrong, you'll know it and be able to stop the pump quickly rather than wasting a CO2 cartridge. IMO, YMMV.