The Azenis RT615K+ is a further evolution of Falken Tire’s championship-winning Extreme Performance Summer tire, the Azenis RT615K. Developed for drivers of muscle cars, sports cars, street rods and performance sedans who want ultimate grip in warm, dry and wet conditions. Highest dry grip among maximum performance tires. Asymmetric tread design and steel sidewall inserts provide an uncompromised level of durability under track use. With a treadwear rating of 200, it has become a popular tire for autocross and track use in the street tire classes.