Pressure tested from the factory.

Autoventil (same type as you find on cars, etc.)

AV10

Fits these tire sizes, among others:

40-507	24 x 1,50"
47-507	24 x 1,75"
50-507	24 x 2,00"
54-507	24 x 2,10"
57-507	24 x 2,25"
60-507	24 x 2,35"
62-507	24 x 2,50"