700c, 27-Inch & 650c

The exceptional profile and OneStar rubber compound make the Schwalbe X-One one of the fastest cross tires ever. To make it the absolute high-flyer, mount it without a tube on a tubeless-compatible wheel. In combination with the right wheel, you can run tubeless tires for cyclocross with extremely low air pressures without fear of "burping" (unwanted air leakage). For instance, it works extremely well with the Iron Cross from No Tubes. - OneStar Compound and MicroSkin Casing

The X-One is now available in a “mud-version” with even coarser tread. The Cross specialist for the real muddy days. - Folding Bead - OneStar Compound and MicroSkin Casing