Get the speed of CO2 inflation and the reliability of a traditional hand pump with Specialized's Combo2. This compact pump that easily fits in a jersey pocket or pack includes a threaded 16-gram CO2 cartridge that stores inside the handle ready for use. You can use the CO2 to inflate your tire or pump to fill it (with the cartridge still inside the handle). There's even a pressure-relief button for fine-tuning your tire pressure.
For use with threaded 16-gram cartridges