No room on my frame for a pump that's actually useful, but you bet I carry a mini-pump as backup to my CO2. I've had to use it, too. Took me about 20 minutes to inflate my tire, but it was good enough to get me down the road.
I don't like them for the environmental reasons everyone else has mentioned (yes I recycle them, but recycling is NOT reducing or reusing, plus I can't believe no one else has mentioned plain ol' adding CO2 to the atmosphere! - but it's only a couple of times a year, justify justify justify), but also, in a group ride it's simply rude to not be able to inflate your tires and let the group continue, either with CO2 or with a man-frame-sized pump.
Last edited by OakLeaf; 12-09-2009 at 06:11 PM.
Speed comes from what you put behind you. - Judi Ketteler