I carry a small pump which works great (when needed, but used very infrequently) and CO2 backup, but will be adding an "inflator" soon. Even the smallest ones can pump a 29 X 2.3 MTB tire four times and the CYC+ (and others I'm sure) can set the tire pressure accurately before every ride. I'll have a mini for a backup (BTW, for the purists: I'm not worried about the 3 oz or so weight of the "extra" pump. My wife and I need to be self-contained on some rides since there's no backup deep in the woods.