Toyo Proxes RR Tire - 235/40ZR17

The Toyo Proxes RR is a DOT-marked competition tire for car-based racing. Toyo lists it for NASA-style road racing, track days and high-performance driving schools. It uses a special racing tread compound in a symmetric, two-groove tread with 4/32" of new tread depth.

Reinforced sidewalls and a high-modulus bead filler are there to sharpen steering response and feedback. Built-in wear inspection markers let you check tread depth from any position, and a marked area on the sidewall gives you a place to label the tire.

Specifications for this tire: size 235/40ZR17; fits 17-inch wheels; section width 235 mm; aspect ratio 40; speed rating Z; overall diameter about 24.4 in (620 mm). Part number toy255120.

IMPORTANT: Racing use only. Toyo states the Proxes RR is not for highway use. Operating-temperature, inflation and alignment recommendations are published by Toyo on the product page for this tire. Toyo publishes a cold-weather handling and storage advisory for its competition tires; read it before storing or moving these tires in freezing temperatures.