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 radial tire combines a directional tread pattern, reinforced casing, and high-grip compound to support precise handling and consistent performance on demanding road courses and spirited drives. Part number TOY178290 identifies this 295/30ZR18 98W XL application with a black sidewall and tubeless construction.
The long contact patch helps maintain a broad footprint during acceleration, cornering, and braking, while large shoulder blocks enhance lateral stability and steering response. A connected center rib supports straight-line control and predictable transitions, helping drivers maintain confidence through technical sections and high-speed corners. The directional tread design is optimized for performance-focused traction and dependable feedback when driving conditions and temperatures vary.
Built for vehicles using an 18-inch wheel, the Toyo Proxes Sport R features a 295-millimeter tread width, a 30-series aspect ratio, and a W speed rating. Its 98 load index and XL construction provide additional load capacity for performance applications. This tire is not a run-flat design and is intended for use as part of a properly matched tire-and-wheel package. For best results, follow the vehicle manufacturer’s fitment requirements and maintain the recommended inflation pressure, alignment, and rotation direction.
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