bicycle valve

French nozzle: Manually lock the valve, high pressure resistance, smooth air leakage linearity, thin valve base, light weight, small valve diameter, less impact on the strength of the ring, can be used in 19C size inner tubes or narrow rings, the price high!

The beautiful mouth is mainly locked by the internal pressure and the top force, high pressure resistance, and the air leakage linearity is steeper, that is to say, the air leakage is faster when the air pressure is not enough. It is ideally used in inner tubes with large air volume, so it is very convenient to inflate!

English mouth (Chinese mouth), the valve is leak-proof by the rubber sleeve, the leak-proof ability mainly depends on the quality of the rubber sleeve, and the airtightness is very good (general riders may think that the tire of the English mouth leaks quickly, but if the rubber tube is not rotten , in fact, it has nothing to do with the air nozzle, mainly because the inner tube of the general English nozzle only uses ordinary rubber instead of butyl material), but the pressure resistance is low, the valve base is large, the weight is large, the inflation flow is small, and the rubber sleeve The durability is poor, but the maintenance is convenient, and the inner tube will not be scrapped because of the valve problem, and the price is low!