Small closely spaced knobs make this an XC go to tire and the ramped knobs keep you rolling. Folding bead models feature a higher TPI dual compound casing and EPS puncture protection. DC - Dual Compound two compounds comprised of a harder longer lasting center and a softer gripping corner. EPS - Exceptional Puncture Safety offers an added layer of proprietary rubberized poly-fiber material between the tread and the casing to help prevent punctures