Giant 20" x 1.0" 48mm Presta Valve, Bike Tube – The Path Bike Shop
DMLNN 28 700x18-25C Road Bike Replacement Inner Tubes Presta Valve 48mm/60mm/80mm for Road Bikes with Tire Size of 700c x 18, 23, and 25 (2 Inner Tubes with 2 Tire Levers) Sports & Outdoors