Well, I bought the Topeak Morph and when I went to install it-the little plastic gizmo that holds the pump in the bracket broke off! I called Cambria (where I ordered it) and the guy was really irritated: "You mean, you broke it and now you want us to give you back your money?" No, knuckle head....Anyway, he said they'll refund my money. We'll see.

But, just a word of warning - if you have a small bike (like me) this is a big pump width-wise. I could not have installed it because my bike bag is one of those triangle wedge things that fits between the seat down tube & the top tube. I cannot put two water bottles on the bike because I don't have enough room, so behind the seat is a double water bottle holder (imperative in the desert.) Thus, my bike bag goes between the two tubes.

Anyway, I'm back to CO2 cartridges shopping...