Goodyear XPLR Slick For Zipp®Your tire is your connection to the ground, making tires a critical component for speed. That is why Zipp designed its XPLR tires in a radically different process: Start with an ideal gravel tire and create a wheel around it. Enter two great gravel options in the Goodyear Fitment Series for Zipp, the Goodyear XPLR SLICK and Goodyear XPLR INTER. Benefits of going big ! Goodyear XPLR SLICK and INTER tires are designed for use with the ultrawide 303 XPLR