The Proxes RS1 is a full-slick competition tire* that provides consistent performance throughout the life of the tire. This race tire is excellent in dry braking and built to endure closed-course road racing, time attack, track days, and high-performance driving schools. Compound, construction and design contribute to its durability, responsive handling, and high-speed performance in dry weather conditions. (*Warning: For racing purposes only. Not for highway use.)
| Part Number | Size | Service Description | Max Wheel Width | Min Wheel Width | Outside Diameter | Sidewall | Warranty Mileage | Stock | Price |
|---|---|---|---|---|---|---|---|---|---|
| 163450 | 285/680R18 | Unknown? | 10 | 10 | 26.771653543307085 | Black Sidewall | 0 | Inquire for Stock | Inquire for Price |
| 163460 | 245/640R18 | Unknown? | 8.5 | 8.5 | 25.196850393700785 | Black Sidewall | 0 | Inquire for Stock | Inquire for Price |
| 171440 | 335/710R18 | Unknown? | 12 | 12 | 27.95275590551181 | Black Sidewall | 0 | Inquire for Stock | Inquire for Price |
| 171680 | 285/650R18 | Unknown? | 10 | 10 | 25.590551181102363 | Black Sidewall | 0 | Inquire for Stock | Inquire for Price |