The Turanza EL400 with/UNI-T is Bridgestone's Standard Touring All-Season tire developed to meet the Original Equipment and replacement tire needs for drivers of sporty coupes and sedans. Available in the speed ratings appropriate for both Standard and Grand Touring applications, the Turanza EL400 is designed to provide luxury appearance, long wear and responsive handling along with dry, wet and year-round traction, even in light snow. Bridgestone's Ultimate Network of Intelligent Tire Technology (UNI-T) features three core elements: CO•CS, a Computer Optimized Component System which allows design and manufacturing processes to work more cooperatively, leading to a more efficient tire that doesn't significantly sacrifice one area of performance for improvements in another, O-Bead, a more round structure that minimizes overlapped joints in the bead area for improved ride, and L.L. Carbon (Long Link Carbon) which helps the rubber compound resist microscopic tread tearing related to wear. On the outside, the Turanza EL400 with/UNI-T features its L.L. Carbon tread rubber compound molded into a symmetric tread design with straight circumferential grooves to balance dry and wet road traction with noise comfort and hydroplaning resistance. On the inside, the Turanza EL400 features twin steel belts for strength and stability with a polyester cord body to enhance ride comfort.