ROADUP Mini CO₂ Bicycle Air Pump - Presta Schrader Compatible, Portable Manual Inflator Threaded Connection - Perfect Emergency Pump Road & Mountain Bikes - No CO₂ Cartridges Included
CONTROLLED INFLATION
OPEN: Slowly turn the lever counter-clockwise to release CO₂ gas, up to a 90°angle.
After filling the pressure required by the tire......
CLOSE:Turn lever back to start "OFF" position.
CO₂ EMERGENCY INFLATOR
1. Take the cylinder with the anti-freeze foam first
2. Turn the handle to the off state
3. Screw the metal needle clockwise
4. Until the metal needle punctures the cylinder
5. Then finish the rotation
Note: When the cylinder is punctured, there will be a gas that suddenly catches the sound of the valve.
Small and convenient, only hand grip
Mini size can be easily placed inside the bicycle tail bag or the pocket, Quickly inflate the tires while riding.