|It's easy to see why this is one of the most popular cyclocross tires around. Built on a supple, state of the art racing tire casing, it has the supple feel you'll want when the going gets gnarly. The tread has been refined to precisely balance the conflicting demands of traction and efficiency--with its specially shaped and spaced knobs that help avoid the unnerving squirm associated with other knob designs. Features a proven knobby tread design for traction in most conditions, supported multi-level tread knobs for reduced squirm, extra supple casing and a silica tread compound for efficiency and mud shedding. Folding bead.