Innovations makes the second wind IH, which has a
very small backup pump as part of the CO2 unit. It also accepts threaded or threadless cartrides and automatically accepts presta or schrader. It is a little larger than the other setups but it still fits in my bike bag. Sometimes I will even give the tire a couple of quick pumps, then empty a 12g cartridge into the tire. It works much faster than using a pump, and ensures I get 125psi in my tire.
Best place to get cartridges: Walmart or any big dept. store that sells guns. You can get a big box(of the threadless kind) for dirt cheap.
Description:
Second Wind offers riders instant CO2 inflation with a manual mini-pump back-up feature
Supports Presta and Schrader valves in the same opening with no threading necessary-just push on and inflate Pump is small enough to carry in your seat bag Uses threaded CO2 cylinders Includes one 16g threaded cylinder