Schwalbe No. 4 SV4

Not all hoses are the same.

Air pressure stability
A Schwalbe hose holds the air much longer. The quality of the ingredients and the purity of the rubber compound determine the quality of the hose already at the material stage. During vulcanization, each Schwalbe hose is placed in a mold and inflated. This is the only way to ensure uniform wall thickness and excellent air retention.

Reliability
The consistent control that provides the highest possible functional safety: each hose is inflated in the factory and stored under pressure for 32 hours to check its air content.

Group hose system
Due to its high elasticity and quality, a single tube covers a wide range of tyre sizes. For example, tube no. 17 works as well for a tire width of 28 mm as for a tire width of 47 mm. Only an extremely high-quality and reliable tube can meet this requirement.

standard release
A Schwalbe hose holds the air much longer. Due to the purity of the rubber compound. Through the uniform wall thickness.