The 37x13.50R17 Nitto Mud Grappler tires are mounted on Walker Evans 17x9-inch bead-lock wheels. This combo ran surprisingly true, even unbalanced at highway speeds. The tires are noisy on pavement but work very well in sand and on the rocks. Walker's wheels are designed to be bead locks from the beginning and are very strong. They also feature angled bolt seats, so when the rings are tightened over the beads, the bolt heads sit flat on the ring.