Leave it to the Italians to design a cross tire that even the pros will drop to their knees and give homage to. The Cross XM Pro Tire is a mud barreling, pavement gripping piece of art that parts loose surfaces like a robed man of God. Widely spaced knobs allow optimum mud shedding while providing unparalleled grip during acceleration, braking and cornering. Vittoria's new tread pattern and PRB 2. 0 protection belt ensure the Cross Clinchers deliver incredibly low rolling resistance, superlative comfort and stability, as well as all around grip that will help you pedal through the chop past your arch rival.