Toyo 178300 Proxes Sport R 315/30R18 98W Extreme Performance Summer Tire

The Toyo Proxes Sport R 315/30R18 is an extreme-performance summer tire engineered specifically for track and competition use. Designed for autocross, time attack, endurance racing, and HPDE events, this tire delivers the high grip, consistency, and stability that serious drivers demand on circuit.

Featuring a high-grip race compound, the Proxes Sport R reaches optimal operating temperature quickly for consistent performance lap after lap. Its directional tread pattern and optimized contact patch maximize the footprint length and ground contact area, directly translating to improved braking distances and sharper cornering capability.

Key Features:

• High-grip R-compound tread reaches optimal operating temperature rapidly for immediate on-track performance
• Optimized contact patch increases footprint length and contact area for enhanced braking and traction
• Large outer shoulder blocks maximize lateral grip for high-speed cornering stability
• Wide connected center rib improves directional stability and precise steering response
• Water evacuation channels assist with wet traction during mixed-condition track days
• Reinforced sidewalls enhance stability and steering feedback under load
• Directional tread pattern designed for consistent, even wear throughout the tire's life
• 200 AA UTQG treadwear rating — meets the 7/32" tread depth spec for competitive racing class eligibility

The Proxes Sport R in 315/30R18 with a 98W service description is built for high-performance sports cars and purpose-built track vehicles running 18-inch wheels. With a black sidewall finish and no mileage warranty (consistent with a competition-focused tire), this is a purpose-driven performance tire for drivers who prioritize lap times and grip over longevity.