Schwalbe hoses have been proving themselves on the market for years due to their excellent production. They are even in the wall thickness and round in the barrel. Due to their precise joining, they are durable in the seam. A comparative test showed: The Schwalbe hose keeps the air pressure stable much longer than other hoses (they lost almost twice as much air pressure as the Schwalbe hose in 30 days). A possible reason for this could be a lower butyl content in the other hoses. The special quality of Schwalbe hoses results from the uniqueness of their rubber compound. In order to guarantee this high quality, every single Schwalbe hose is pumped up and checked for at least 24 hours before it leaves the factory.