Toyo Proxes RR Tire - 235/40ZR17

Race-ready off the shelf with a 4/32" 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.

• REINFORCED SIDEWALL AND HIGH-MODULUS BEAD FILLER provide excellent steering response and feedback
• Proxes RR is the spec tire in several classes within NASA, BMW CCA, PCA and many more
• WEAR INSPECTION HOLES provide easy tread depth measurement from any position
• SIDEWALL MARKING AREA allows for easy labeling on the sidewall
• RACING TREAD COMPOUND increases grip and improves lap times

The Toyo Proxes RR is a race-ready DOT competition tire designed for NASA road racing, track days, high-performance driving schools, and other demanding dry-track applications. With a 4/32-inch tread depth, this 235/40ZR17 radial performance tire delivers consistent lap times, predictable handling, and strong cornering performance. Its symmetric two-groove tread pattern and specialized racing compound help maximize the contact patch for dependable dry traction and responsive control.
The reinforced sidewall and high-modulus bead filler provide excellent steering response and driver feedback, allowing precise inputs during braking, turn-in, and acceleration. The Proxes RR is also used as a spec tire in select classes across NASA, BMW CCA, PCA, and other racing organizations. Its tubeless construction and black sidewall support practical use in competitive track environments, while the non-directional tread design allows flexible mounting orientation.
Integrated wear inspection holes make tread-depth checks quick and convenient from multiple positions around the tire. A dedicated sidewall marking area provides space for clear labeling during events, testing, or tire rotation. The racing tread compound is engineered to increase dry grip and help improve lap times for drivers seeking consistent performance in competition and high-performance track use. The Toyo Proxes RR Part Number TOY255120 is intended for dry-track performance and should be selected according to the vehicle, wheel, and event requirements.

Features:

• Race-ready DOT competition tire for NASA road racing, track days, performance driving schools, and dry-track use

• 235/40ZR17 radial performance construction with a symmetric two-groove tread pattern

• 4/32-inch tread depth for consistent lap times and predictable handling

• Racing tread compound increases dry grip and supports improved lap times

• Reinforced sidewall and high-modulus bead filler provide responsive steering and driver feedback

• Spec tire used in select NASA, BMW CCA, PCA, and other racing classes

• Wear inspection holes simplify tread-depth measurement from multiple positions

• Sidewall marking area supports easy tire labeling

• Tubeless, non-directional design with black sidewalls