Segun la pagina de Specialized: NEUMATICO DELANTERO S-Works The Captain, 26x2.2", 120 TPI, Aramid bead, dual compound, tubeless ready NEUMATICO TRASERO S-Works The Captain, 26x2.2", 120 TPI, Aramid bead, dual compound, tubeless ready http://www.specialized.com/bc/SBCBkModel.jsp?spid=39188&eid=95