205/50/15 BF-Goodrich! The g-Force T/A Drag Radial is the direct descendant of the world's first street-legal drag radial that met U.S. Department of Transportation's (DOT's) street tire standards (the BFG Comp T/A Drag Radial). The g-Force T/A Drag Radial molds a high-grip tread rubber compound into a directional tread design that gives you trully the best of both worlds.