Continental’s Race Road Tubes 5-Pack are everything you want from an inner tube lightweight durable and reliable. While a lighter tube may not seem like it makes a difference it actually takes away from the overall rotational weight of the wheel which makes a huge impact on both long rides and punchy sprints. The Continental Race Road Tubes are made from standard weight butyl and feature removable Presta valve cores so you can inject sealant for additional puncture protection.