Toyo Proxes Sport R Tire - 255/40ZR17 98W XL

Engineered for autocross, time attack, endurance racing, and HPDE enthusiasts and racers, the Proxes Sport R features a directional tread pattern, reinforced casing, and a high-grip compound. Its long contact patch, large shoulder blocks, and connected center rib maximize ground contact and stability - delivering improved control, consistency, and quicker lap times.

The Toyo Proxes Sport R tire is engineered for autocross, time attack, endurance racing, and high-performance driving events. Designed for enthusiasts and racers, this competition-focused tire combines a high-grip compound with a reinforced casing to support responsive handling, consistent performance, and confident control on demanding road courses.

Its directional tread pattern helps promote predictable cornering and precise steering response, while the long contact patch increases the tire’s connection with the pavement. Large shoulder blocks enhance cornering stability, and the connected center rib helps maintain control during acceleration, braking, and rapid transitions. Together, these features are designed to deliver consistent feedback and help drivers pursue quicker, more controlled lap times.

The Toyo Proxes Sport R is a tubeless radial tire with a black sidewall and an XL, or extra-load, construction. It is sized for 17-inch wheels and rated W for high-speed performance when properly fitted and used within the vehicle and tire manufacturer’s recommendations. This tire is intended for performance-oriented applications, including autocross, track days, HPDE events, time attack, and endurance racing.

Part TOY178260 provides a 255/40ZR17 fitment with a 98 load index and W speed rating. Verify wheel compatibility, vehicle requirements, clearance, and intended use before installation. As with any high-performance tire, professional mounting and balancing are recommended.

Features:

• Application: Designed for autocross, time attack, endurance racing, HPDE, and other high-performance driving events
• Tread Design: Directional pattern supports responsive steering and predictable handling
• Compound: High-grip compound promotes strong traction and consistent performance
• Casing: Reinforced construction enhances stability and control under demanding driving conditions
• Contact Patch: Long contact patch helps maximize ground contact and driver feedback
• Shoulder Design: Large shoulder blocks improve cornering stability
• Center Rib: Connected center rib supports control during acceleration, braking, and transitions
• Construction: Radial, tubeless tire with black sidewall
• Fitment: 255/40ZR17 for 17-inch wheels
• Load and Speed Rating: 98W XL