The long haul GT Radial GSL213FS steer tires are made with a special compound that ensures fuel economy. They feature extra deep and wide tread for long tire life and consistent performance. Defense ribs and equal force casing design effectively protect the tires from irregular wear by evenly distributing force. These tires also offer comfortable rides thanks to the duo filler technology. A cool formulation prevents the buildup of heat in the casing for reliable performance.