The Pirelli Scorpion STR (Stability Traction Rating) All-Season tires have been created to meet the requirements of the new generation SUVs and 4-wheel drive vehicles. These tires feature four wide circumferential grooves combined with multi-sipe differentiated tread blocks to provide maximum water drainage, excellent dry traction, and a comfortable ride. A continuous central rib promotes greater high-speed stability and even treadwear throughout the tire life. The tires are built in Pirelli's fully automated MIRS manufacturing facility. The MIRS technology ensures that you will receive the highest quality constructed tire every time.