Tubeless Easy Allround Road Bike Tyres. Fast, reliable and agile, the new Schwalbe One presents itself with tubeless technology at the highest level. The powerful ADDIX compound is extremely durable and reliable in any situation - even on winter wet roads. - MicroSkin carcass - Addix compound - RaceGuard puncture protection Note: Please always check the correct tyre size using the ETRTO designation in the technical data. The customs designation may or historically several different tyre sizes.