Originally Posted by
K.Katso
That's fine, but my original question is why would you carry BOTH like the OP does? Then you are using up twice the space for the same function.
CO 2 to fill the flat quickly. On a group ride you makes others wait. On a busy highway shoulder you want to get out of there in a hurry. In the cold rain, you don't want to wait.
A mini pump to help find the flat cause and start the inflation