CYCLAMI 120 PSI Portable Electric Bike Air Pump Mini Fast Compressor for Schrader & Presta Valves

Description

Inflating an empty (hollow) inner tube:
Connect the pump to the valve first, then start the pump to inflate the inner tube.

Adding air to a tube that already has pressure:
Start the pump first, switch to inflation mode, and then connect it to the valve to top up the air.

For easier and more comfortable inflation, it is recommended to use the extension tube included in the accessories.

When inflating, press firmly on the pump and the valve by hand to ensure airtight contact.
Airtightness may vary from person to person, which can cause slight differences in inflation accuracy.