Hankook Optimo H724 Radial Tire - 225/70R15 100T Black Side Wall. 70,000 Mileage Warranty Introduction of a new-material light-belt cord more light but more strong saves fuel costs & improves steering safety. Abrasion resistance tread compound improves abrasion resistance. High hardness bead filler improves durability. Single strand bead wire enhances vehicle ride.