Bridgestone Dueler H/P Sport AS All-Season Radial Tire - 225/60R18 100H All-season tread design gives strong performance all year long CO-CS (Computer Optimized Component System) combines tread design, materials, and construction to create optimal tire performance L.L. Carbon (Long Link) resists cracking and tearing, improving tread wear and tire life O-bead enhances comfort through a single, continuous cable in the bead construction 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