Titus is fine in an ordinary truck, most of the time. But the side canyons can deposit sand on the roadway after thunderstorms. And there are some narrow places -- maybe not too narrow for a 101 inch vehicle, but I am not sure I would take a wide rig on that road. We did encounter some mud, but nothing serious.
If you go, allow extra time to explore the Leadville ruins. And there are amazing calcite "mosaics" on the walls of the lower canyon -- we thought they were petroglyphs, but they are just random patterns in the rock:
Click For Full-Size Image.">Calcite