Toyo Tires are On Sale 25% Off & Ships Free. Race-ready off the shelf with a 4/32 inch-deep tread, the Proxes RR delivers consistent lap times and predictable handling on dry tracks. This DOT competition tire* is ideal for NASA road racing, track days, and high-performance driving schools. The symmetric two-groove tread design and special tread compound provide a maximum contact patch and ultimate dry traction with superior cornering force.