I carry a minimalist co2 set up of 1-2 cartridges + a small inflator (Nano inflate or specialized air chuck) in seatbpack and then a tiny Topeak Micro rocket carbon pump. The pump goes either in Jersey pocket or on a bottle cage mount depending on bike. It takes a little effort but can inflate a 700x25 or 28 to about 80-90 psi in a couple minutes. Covers the bases.