Tube 20"x1.90"-2.125" - 48mm AV
It is very important that you select the right size tubes for your rims. In most cases the required dimensions will be written on the side wall of your tyre for easy reference. It is also important to purchase tubes with valves that are compatible with your bike pump.
Tube 20"x1.90"-2.125" - 48mm
Schrader (car style valve)