Ultracycle's Bicycle 700c Inner Tire Tube is an essential accessory for any cyclist looking to maximize the durability and efficiency of their bicycle. These bike inner tube has a range of 700x20 and can go all the way to a 700x28c tube. For budget-conscious riders searching for maximum performance on a tight budget look no further as Ultracycle's 700c internal tire tube offers unparalleled reliability and value. This easy-to-install bike tire tube has been rigorously tested in multiple on and off-road applications. The bike tubes are constructed from high quality rubber and butyl materials for superior burst strength and air retention. The tube provides excellent puncture resistance and offers superior performance even in extreme conditions. This Presta valve offers FV48 RVC of smooth and safe air flow that can be adjusted with an optional adapter. for easier air transfer from the tire to the tube and vice versa while remaining airtight at all times. This Inner Tire Tube is a high-quality tube designed for all types of road biking.