Bicycle valves

There are two main types: schrader, presta. Schrader is a wide boi, presta is a narrow boi.

Schrader	Presta

To pump up a presta valve you might need an adapter.

Pumping it:

1. Unscrew valve cap
2. Unscrew the little nut thingy all the way to the end (it’s not gonna fall off)
3. Screw on adapter
4. Attach pump, pump as needed
5. Detach pump, unscrew adapter
6. Screw the little nut thingy back down as carefully as possible (one finger is enough), any pressure on it will release air from the tire.