Bicycle tubes
Bicycle Valve types
The Schrader valve are most used at cars and the advatage is, you could fill up your bicycle wheel on each garage.
The Dunlop valve or english valve is the most used valve at bicyles.
The third typ is the Presta valve or Sclaverand valve or french valve this is usually used at racing bikes.
Bicyle tube Schwalbe for 20 x 1 1/8 to 1 3/8 inch wheels, 28/37-438/440/451 with car valve / bicycle valve / race valve This bicycle tire tube is available as AV7A , DV7A or SV7A with depend valve types. Tip: you will find the size at the side from your bicycle tire. Valve Types: AV = car valve 40mm DV = Dunlop valve 32mm SV = Race valve / Sclaverand valve / Presta valve 40mm