A rotor protection shield for a disc brake system for heavy-duty vehicles includes a flat, radially-extending central wall and a sidewall. The sidewall is integrally formed with and extends radially outwardly from an outer periphery of the central wall. The sidewall is angled axially outboardly relative to a planar surface of the central wall at an angle that is between about forty-five degrees and about seventy-five degrees. The central wall and the sidewall are smooth, and the shield is mounted to a torque plate proximate an inboard surface of the disc brake rotor to protect the rotor from road spray and contaminants.
