48 mm valve racer / French / presta

Latex hoses significantly reduce friction between tube and tire, protect against punctures, and increase wear resistance

Latex hoses lose air over time, and must therefore be pumped more often than usual.

The valve cone can be removed.

Latex is the type of rubber that is best suited for bicycle hoses as they are lighter (which is especially important in the rotating weight) and more flexible than other types of rubber e.g. silicone and butyl, which are both harder types of rubber, especially silicone hoses.