Duro 24" x 1.0 Presta / French Valve Tube 40mm Stem (4640) Ships within Australia In stock. Available via Click and Collect or Buy Online Share Loading Facebook Like button... Duro 24" x 1.0 Presta / French Valve Tube 40mm Stem (4640) Ships within Australia In stock. Available via Click and Collect or Buy Online Share Loading Facebook Like button...