For whatever reason, I rarely get flats. In thousands and thousands of miles of riding I've only changed a tube out maybe three times total over the last six or seven years. I've been carrying around CO2 cartridges, plus a small Lezyne pump that attaches to the bottle cage, and usually two tubes. I have a small flat kit but have never patched a tube on the road.

On Sunday on a very rough road I got a flat and did the usual tube switch. With the first CO2 cartridge I got it inflated, but then let all the juice out by unscrewing the cartridge too far. The second CO2 cartridge just plain didn't work. Don't know what the issue was with that one.

So I pumped up the tube using the Lezyne pump which worked fine. I just pumped until I got tired of doing it and the tire felt OK using the "pinch" test and went on with the ride.

When I got back home I used the floor pump and found out the tire only had maybe 45 PSI in it tops. I couldn't tell a bit of difference in the ride from when I pump up to my usual 95 PSI or so. (I use wide Zipp rims that can use lower air pressure.)

I'm thinking of just ditching the CO2 stuff from now on and just using the pump. I know I can easily get more than 45 PSI into the tire with it, and even with low pressure in the tire the ride is fine (probably a bit more susceptible to pinch flats.)