Originally Posted by
Paul Barnard
I carry a small frame mounted pump. It's not a lot of fun to fully inflate a tire, but it has never failed me. I have never needed help getting rolling again. I have helped others whose CO2 failed them.
This, except I did once have a mini-pump that fell apart on me once while I was helping another rider repair a flat. Fortunately we were able to flag down another rider with a pump.
He had used his only CO2 cartridge earlier in the day.