The Rock Hawk features an aggressive tread pattern with large, well-spaced lugs that shed debris and mud easily. Ramped center knobs improve rolling resistance. Tubeless compatible, dual compound tread surface 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. TR - Tubeless Ready, compatible with sealant based tubeless systems or with tubes. Item Specifications: Size, 27.5x2.4, Weight, 970, PSI, 65, TPI, 60, Tire Bead, TBLS - Fold, Tread/SW, Bk/Bsk, Style, Tubeless, Reflective Sidewall, No, Features, DC/EPS/TR, ISO, 584, , , , , , , , , , , , ,.