The Toyo Proxes RS1 represents the pinnacle of Toyo's racing tire technology—a DOT-exempt full slick designed exclusively for closed-course competition including road racing, time attack, track days, and high-performance driving schools. Unlike street-legal semi-slicks, the RS1 features zero tread pattern, placing maximum rubber on the track surface for uncompromising dry grip levels. The tire is available in multiple compound options optimized for varying track conditions and temperatures, allowing professional teams and serious competitors to fine-tune their setup for specific circuit characteristics and ambient conditions.
The RS1's construction features an advanced casing design with steel-reinforced sidewalls that provide responsive handling and maximize performance in dry weather conditions. The tire offers high grip levels across a wide temperature range and delivers excellent wear resistance for extended sessions. However, as a full racing slick, the RS1 requires professional support infrastructure including tire warmers to bring the compound up to optimal operating temperature before use—cold slicks provide dangerously low grip and can be unsafe. The tire delivers consistent performance throughout its life when properly managed with appropriate temperatures and pressures.
Available in limited sizes including 245/640 R18, 285/650 R18, 285/680 R18, and 335/710 R18, the Proxes RS1 is designed for serious motorsport applications where outright speed takes precedence over versatility. The tire excels in dry braking and provides the ultimate cornering grip for dedicated racing, but is completely unsuitable for wet conditions and offers no water evacuation capability. For professional teams, club racers with appropriate support equipment, and time attack competitors seeking maximum dry performance in controlled environments, the Toyo race slicks represent a proven, high-performance option that has demonstrated success across various forms of closed-course motorsport competition.
