Originally Posted by chaadster

Lezyne has a braided bose to replace the standard "rubber" hose for their Road Drive pumps which threads directly onto a CO2 cartridge, the nice fhing about that being that the hose stows inside the pump as does the standard hose, so the only extra thing to make room for is the gas cartridge.

The Road Drive is a really efficient pump up to about 28-30c in the Medium size. Beyond :0c, I'd suggest the large size, unless the gas capability is an effort to minimize pump size, in which case I'd recommend going with the smaller "M" and accepting the extra strokes