Schwalbe Tube Sv6a Presta: 20 X 0.9 - 1.5 (23 To 40 - 406) 65g Ships within Australia In stock. Available via Click and Collect or Buy Online Share Loading Facebook Like button... Schwalbe Tube Sv6a Presta: 20 X 0.9 - 1.5 (23 To 40 - 406) 65g Ships within Australia In stock. Available via Click and Collect or Buy Online Share Loading Facebook Like button...