Introducing the X-Tubo-City/Tour TPU Bicycle Tubes, revolutionizing cycling with their durable and puncture-resistant material. These 700c tubes promise a worry-free ride, eliminating frequent flats and reducing maintenance. Backed by a world premiere one-year warranty, they cover all flats under normal use, setting a new standard for reliability. Compatible with 700c tires (30-50 mm width) and both rim and disc brakes, these tubes offer versatile compatibility. Feather-light at just 176g (42 mm valve) and 182g (40 mm valve), they balance lightness with exceptional durability, ensuring a high-performance ride every time.