PRODUCT INFORMATION “SCHWALBE AEROTHAN TUBE 28″/700C RACE” No. 20E. For bicycle tires in size 28″ inch (ETRTO 23/28-622). When it comes to road cycling with a tube, the Schwalbe Aerothan Tube Race is the first choice. It impresses with its low rolling resistance and dynamic, smooth riding dynamics. Compared to butyl tubes, a weight saving of 100 grams or more can be achieved for the entire bike. You can rely on the Aerothan Tube Race not only for excellent puncture protection, but also when riding downhill: it remains absolutely heat-resistant even after several emergency stops in quick succession with rim brakes. Aerothan tubes are made of 100% thermoplastic polyurethane (TPU) (including the valve) and are therefore fully recyclable. Valve:SV Valve length:60 Bead:TPU Execution Tube:Aerothan Item:20e Valve stem:TPU