The Cooper Pro Series LHS Steer Tire offers 18/32nds of tread depth and features a four-belt steel design construction. The tire also features Cooper’s ECO (Energy Conservation Optimization) technology to provide an ultra-low rolling resistance tire that both exceeds SmartWay standard requirements by 15 percent and meets the EPA’s greenhouse gas (GHG) emissions requirements set for 2021.The long haul steer (LHS) tire has a patent-pending stone ejector design with a stepped groove wall in the tread pattern. The tire has a seven-year, two-retread warranty and a full replacement value for the first 50 percent of treadwear.