Bridgestone Potenza S-02A 215/45ZR18 (89Y) OVERVIEW If you ve got a sports sedan or crossover and like to really get the last measure of performance out of it you ll love the Bridgestone Potenza S-02A. The Potenza S-02A delivers true summer ultra-high-performance and traction with a sticky tread formulation and innovative tread pattern and water channeling grooves to resist hydroplaning. Like all summer and ultra-high-performance tires the tread formulation of the Potenza S-02A will stiffen in colder weather so these tires shouldn t be used when the thermometer is below 40 degrees or so.