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Toyo Proxes RA1 Tire - 225/50ZR15

The design and components of the Proxes RA1 came from experience in winning races all over the world. This DOT competition tire is well-known by road racers for delivering quick lap times, consistency, and long wear. Full 8/32" tread depth provides good competitive wet traction while shaving to 4/32" improves dry traction
  • Stepped tread design improves dry traction due to increased tread area and limited void, also assists with wet traction due to groove arrangement
  • Directional tread design features staggered tread blocks which maximizes traction and handling, improves ride comfort by reducing road noise
  • Soft but durable R-Compound improves grip for better competitive handling and performance

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.

Features:

  • Brand: Toyo
  • Part Number: toy236830
  • Tire Model: Proxes RA1
  • Tire Type: DOT competition performance tire
  • Construction: Radial, tubeless
  • Tire Size: 225/50ZR15
  • Speed Rating: Z
  • Load Index: 90
  • Tread Compound: Soft yet durable R-Compound
  • Tread Depth: Full 8/32-inch depth with race shaving capability to 4/32 inch
  • Tread Design: Stepped directional pattern with staggered tread blocks
  • Sidewall: Black raised lettering