An initial entry processor for use in a processing satellite in a satellite based communications system is provided having a buffer, a detection and timing circuit and an identity circuit. The device of the invention comprises two or more perforated draining rollers having a main longitudinal axis and two or more pressing rolls having an axis parallel to the main longitudinal axis of the draining rollers. A second sidewall extends upward from the second bead and curves toward a second edge of the tread face such that a curved tire surface is provided between the second bead and the second edge of the narrow tread face.