Tektro T20.11 Disc Brake Pads Semi-Metallic Auriga-Twin (E)-Sub, VolansThe Tektro T20.11 Disc Brake Pads are Semi-Metallic and are replacements for either the front or rear. The T20.11 is compatible with Tektro Volan, and Auriga-Twin, Sub, E-Sub.4717592013238