Toyo Tires Proxes RA1 DOT Competition Racing Tire

The Toyo Proxes RA1 is a DOT-approved R-compound competition radial tire built for road racers, autocross competitors, time attack drivers, and club racers who demand consistent lap times, long wear, and race-ready grip. Rooted in Toyo's global motorsports heritage, the Proxes RA1 carries the engineering DNA of a brand with decades of race-winning experience — delivering a true competition-grade tire that remains street-legal for transit to and from events.

Key Features:

• Soft but Durable R-Compound: Toyo's proprietary tread compound is engineered to be soft enough for superior grip while remaining durable enough to resist excessive wear — delivering consistent, competitive handling across long sessions and multiple heat cycles
• Stepped Symmetric Tread Design: The stepped tread pattern features limited void ratios that maximize dry traction contact area, with a strategic groove arrangement that provides competitive wet traction capability at full tread depth
• Shaveable for Maximum Dry Performance: At full 8/32" tread depth the RA1 provides solid competitive wet traction; shaving to 4/32" progressively eliminates lateral grooves to increase contact patch area for optimized dry grip — giving competitors the flexibility to tailor the tire to their event conditions
• Shoulder Tread Depth Indicators: Molded wear indicator circles near the shoulders — where competition tires experience the greatest wear — allow precise monitoring of remaining tread depth and wear pattern development throughout the tire's service life
• Advanced Competition Radial Construction: Internal architecture engineered specifically for competition demands, delivering the lateral rigidity and steering responsiveness required for aggressive cornering, hard braking, and rapid acceleration
• DOT-Approved and Street Legal: Meets all DOT marking and performance requirements, permitting legal street operation between events — a key advantage for competitors who drive to and from the track without trailering
• Heat Cycle Durability: Compound formulation is specifically developed to withstand repeated heat cycles without significant performance degradation, making the RA1 well-suited for multi-session track days and endurance racing formats
• UTQG 100 AA A Rated: The Proxes RA1 carries a UTQG treadwear rating of 100 with AA traction and A temperature grades — among the highest traction ratings available on a DOT-legal competition tire

Recommended Competition Applications:

• Road course and circuit racing
• Autocross and Solo competition
• Time attack and time trial events
• High Performance Driving Experience (HPDE) events
• Endurance racing (ChampCar, LeMons, and similar grassroots formats)

Important Usage Notes:

• Recommended for competition events only — not suitable for sustained use in wet, cold, or near-freezing conditions
• Not recommended for sustained highway use or in ambient temperatures consistently below 45°F
• Tires should be stored indoors above 15°F when not in use
• No mileage warranty; covered under Toyo's limited workmanship and materials defect policy

Trusted by amateur and club racers across North America, the Proxes RA1 strikes a proven balance between R-compound grip, shaveability, heat cycle tolerance, and DOT street-legal certification — making it one of the most versatile and cost-effective competition tire lines available for grassroots motorsport competitors.