Bridgestone Dueler H/P Sport, 235/50R19, 99V, High Performance Tire This product is not for sale in the state of Arkansas CO-CS (COMPUTER OPTIMIZED COMPONENT SYSTEM) - Maximizes tire performance by optimizing the appropriate combination of tread design, casing shape, materials, and construction O-BEAD - Improves uniformity and ride comfort through use of a single continuous strand of cable in the bead construction LL CARBON (LONG LINK) - Helps improve tread wear and resist cracking, chipping and tearing through the use of a special long length carbon structure SILICA - Improves traction in wet conditions by increasing flexibility of tread compound