1. Unscrew the small nut on the top of the valve until it stops.
If your pump is set up for a presta valve you are ready to inflate and can skip ahead to step 4.
2. If your pump needs a presta valve adapter, now is when you screw on the presta adapter with the rubber o-ring side of the adapter side down. After screwing on the adapter you are ready to inflate the tube.
Skip this step if you don’t need the presta adapter.
3. After inflating the tube to the recommended pressure, remove the presta adapter.
4. Turning clockwise, screw the small nut back into the tube. You are now finished.