Schwalbe Aerothan Tube SV20 Presta 700 x 23-28C (23 to 28 - 622) 80mm valve 2022 Ships within Australia In stock. Available via Click and Collect or Buy Online Share Loading Facebook Like button... Schwalbe Aerothan Tube SV20 Presta 700 x 23-28C (23 to 28 - 622) 80mm valve 2022 Ships within Australia In stock. Available via Click and Collect or Buy Online Share Loading Facebook Like button...