Classification of tyre valves

Classification of tyre valves

The American tyre valves is called "Schrader Valve" in English. It mainly used in off-road vehicles. The mountain cars uses more American tyre valve, generally the cars also use the American tyre valves.

Advantages: The American tyre valves is sealed by the small spring which inside the tyre valve core to pull the seal core. The quality of the seal has a great relationship with the quality of the spring and the seal gasket. And it is convenient to inflating.

The French tyre valves is called "Presta Valve" in English, It mainly used in high-end bicycles and tubulars. Because of the inner tyre pressure of the road cars is higher than the off-road cars. So the road cars uses more French tyre valves (the French tyre valves is generally longer, thinner than the American tyre valves).

Advantages: The air tightness of the French tyre valves is better than the American tyre valves. more tight of the small ring on the top, more tight the inside seal gasket pull, so the better of the seal of the French tyre valves.high pressure resistance, smooth linearity of air leakage, lighter tire valves base, light weight, small tyre valves diameter, less impact on the strength of the rim, can be used in 19C size inner tube or narrow rim.

Disadvantages: manual locking tyre valve, high price ! it is not convenient to inflating, you should first loosen the small ring and then tighten it after inflating .