Schwalbe AV21+AP Air Plus 27.5" Inner Tube Schrader Valve

With even greater volume. Holds air even longer thanks to greater wall thickness. Less frequent re-inflation necessary. Also provides above-average protection against punctures.Key Features:ETRTO: 54/70-584Weight: 400 gValve: AVValve length: 40 mmBead: ButylExecution Tube: Air PlusItem: 21+APSizes:54-584 - 27.5 x 2.10 - 650B57-584 - 27.5 x 2.25 - 650B60-584 - 27.5 x 2.35 - 650B62-584 - 27.5 x 2.40 - 650B65-584 - 27.5 x 2.60 - 27.5+70-584 - 27.5 x 2.75 - 27.5+