PeakPump: Portable High-Pressure Bicycle Pump for Mountain and Road Bikes, with Universal US Law Mouth and Mini Basketball Pump Capability

Length: 158MM (after storage)
Diameter: 30MM (upper tube)
Diameter: 20MM (down tube)
Air nozzle: beauty mouth / French mouth switch
Air pressure: about 100PSI
Application: mountain bike/road bike

Trachea: Built-in