Schwalbe tubes excel in retaining air pressure. The quality and material purity of the rubber mixture affect the quality of the tube. Each tube is individually inflated and inserted into a mould, ensuring even wall thickness and excellent air retention. They are also stored under pressure for 24 hours to test air retention.
The high elasticity and quality material used in Schwalbe tubes allow many tyre sizes to be covered. Only high-quality and reliable tubes are up to this requirement.