If you have a Presta valve, unscrew the top nut and press in to fully deflate the tube. If you have a Schrader valve, simply press the pin in the valve to release remaining air. Step 3 ...
Two Schrader-to-Presta valve adapters are stored inside the hollow handle, along with a ball needle adapter. And if the pump falls over, rubber bumpers at either end of the handle will protect ...