Automatic Electric Bike Pump: GPUTEK BG01 bicycle pump with digital gauge can monitor real-time pressure. It is customizable from 2 to 150 Psi and automatically inflates, suitable for road bikes, mountain bikes, city bikes, gravel bikes, electric bikes and motorcycles Compact and Portable: GPUTEK BG01 Bike tire inflator is compact and portable, measuring only 5.74×2×1.6 inches and weighing only 0.76 pounds. It comes with a frame storage bag for storing the pump, hose and all accessories Fast FInflation: This electric bike air pump can fast inflate a 27.5×2.2 inch mountain bike tire from 0 to 38 PSI in approximately 1 min 45 s, and a 700×23C road bike tire from 0 to 100 Psi in about 2 min. Surprisingly, it takes only 40 s to inflate a 700×23C tire from 80 to 100 Psi Compatible with All Bike Valves: Our BG01 bicycle tire pump comes with a Schrader valve hose and is equipped with a Presta valve adapter and a Dunlop valve adapter, allowing you to easily adapt to all types of bicycles High-quality battery: A single full charge allows you to inflate up to 5 road bike tires or 8mountain bike tires. In addition, this electric bike pump has a powerful cooling system that maintains the proper temperature, prevents overheating and ensures efficient performance throughout the process