The Toyo Proxes RA1 is a DOT competition radial tire developed from experience in road racing and high-level motorsports. Designed for drivers who demand quick lap times, consistent performance, and long wear, this 225/50ZR15 tire delivers dependable handling for competitive driving. Its tubeless construction, Z speed rating, 90 load index, and black raised lettering sidewall provide a performance-focused fitment for compatible 15-inch wheels.
The Proxes RA1 uses a soft yet durable R-Compound tread formulation to enhance grip, cornering response, and overall track performance. Its full 8/32-inch tread depth provides useful competitive traction in wet conditions, while shaving the tread to 4/32 inch can increase dry traction for race-focused applications. Always follow applicable tire preparation guidelines and confirm that the tire is suitable for the intended driving conditions.
A stepped tread design increases the usable tread area while limiting void, supporting strong dry traction and helping maintain wet-weather capability through its groove arrangement. The directional tread pattern incorporates staggered tread blocks to maximize traction and handling, while also helping reduce road noise for a more comfortable driving experience. The Toyo Proxes RA1 is a purpose-built performance tire for drivers seeking responsive, repeatable results on the road course.
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