Joined: Feb 2006
Posts: 657
Likes: 1,118
From: Marin County, California
Bikes: Breezer Repack 650-B, 2011 Gary Fisher Rumblefish II, Gary Fisher HiFi 29er, 1983 Ritchey Annapurna, 1994 Ritchey P-21, 1978 Breezer #2, 1975 Colnago, Ritchey P-29er
Both. CO2 in the tool kit, small pump in jersey pocket or fanny pack. It takes forever to pump up a fat 29er tire by hand, but I hate the thought of emptying the cartridge accidentally and then having no alternative.
Plus, if you need to help someone else, you let THEM use your hand pump instead of your cartridge.