- New
Proxes RR 315/30ZR20 (101Y): DOT-marked competition tire for road racing and track days, with a racing compound and 4/32" of tread. Toyo states it is for racing only and not for highway use.
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 315/30ZR20 (101Y); fits 20-inch wheels; section width 315 mm; aspect ratio 30; load index 101; speed rating Y; overall diameter about 27.4 in (697 mm). Part number toy255320.
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.
Data sheet