A very useful and inexpensive gadget. This handy mini pump can fit in your pocket. Tighten the valve to inflate tires for road bikes, mountain bikes, and ebikes.
Please note that this product does not include a CO2 Cartridge. Therefore, you need to add a 16 g CO2 Cartridge separately.
Reference:
Bicycle tires 24" and below can be inflated to full, 27.5" tires and above can be inflated to slightly below the rated tire pressure. Fat tires need two 16g cartridges