Genuine Innovations Second Wind MTB: This is our Second Wind Mountain Bike pump. This is a CO2 inflator. You simply unscrew the cup, put your cartridge inside. It has threads as well. You can use a threaded cartridge in here. Screw down, you lance and seal. You have a CO2 inflation right here. You also have a back-up hand pump. You have a Schrader valve set up right here. You press on for a Presta valve. You also have a Presta valve setting and a Schrader vale setting right here. Simply roll this helical valve depressor around and you’ve got your Schrader. Roll it back and you’ve got your Presta.
