Road mini pump, CO2 inflator, or both. The choice is yours! HybridRocket technology combines the reliability of a mini pump with the rapid tire filling ability of a CO2 inflator in a single unit. The smallest in the HybridRocket Series, the HybridRocket RX lets you quickly rejoin the group after fixing a flat. The micro-sized pump and integrated CO2 inflator lets you choose between pumping, inflating with CO2 or a combination of both. Its butted aluminum barrel is optimized for high pressure and inflates up to 160 psi / 11 bar. * Use only Topeak 16g CO2 cartridges.