The Schwalbe Air Plus bicycle tube is made for any cyclist who simply wants to cycle and inflate less often.Thanks to its properties it is particularly suitable for bicycles that carry high loads for example e-bikes or cargo bikes. Key Features: Due to the high proportion of pure butyl rubber, the Schwalbe Air Plus tube retains air significantly longer than conventional bicycle tubes. Therefore you have to inflate less often.,With around 70% greater wall thickness, the Schwalbe Air Plus is particularly robust - and so it\'s well protected against pinch and penetrating punctures.,If the Schwalbe Air Plus ever needs to be replaced - like all other Schwalbe tubes, it is 100% recyclable., Available in seven standard sizes, from 20 to 29 inches.