The tube with a longer lifespan, ideal for eBikes and cargo bikes Due to the high proportion of pure butyl rubber, the Schwalbe Air Plus tube retains air significantly longer. As a result, less re-inflating is required. Thanks to its approximately 70% higher wall thickness, the Schwalbe Air Plus is particularly robust and therefore exceptionally well protected against punctures and blowouts. Each tube is inflated at the factory and stored under pressure for 32 hours. A Schwalbe tube is 100% recyclable. The recycled material is used in the production of new tubes without any loss of quality.