Cannondale CO2 Dirt Mini Pump Speed and Convenience A traditional hand pump can take a long time to pump up a high-volume tire. With CO2, you speed up that process. The Cannondale CO2 Dirt Mini Pump combines the speed and convenience of CO2 with the trusty safety net of a traditional pump. It is pocket-sized at only 7. 2" and has a built-in CO2 inflator. It is made from a quality aluminum construction and has an ergonomic CNC-machined surface. The dual-chamber telescopic design maximizes the volume for easy inflation up to 60 PSI with 66cc volume-per-stroke. Features Dual-head design with dedicated outlets for presta valve and CO2Dual-chamber telescopic design maximizes volume for easy inflation up to 60 PSIPocket-sized at only 7. 2" long Specifications Connection Presta Max Pressure60 PSI / 4. 1 bar Handle Material Aluminum Barrel Material Aluminum Length7. 2" / 18cm Gauge No Intended Use Mountain Bike Weight N/A | Cannondale | Co2 Dirt Mini Pump Black/grey