An advanced drive tire with exceptional attention paid to the innovations of Z.environment technology, the 703ZL features the deepest tread of any other line haul drive tire in its class. At a full inch, the 703ZL is a more dependable longer lasting tire. The extra depth ensures longer tread wear and combined with stronger more pliable rubber, rolling resistance is greatly reduced, increasing fuel-efficiency and decreasing surface heat during normal usage. Advancements in rubber wear prediction allow 703ZL tires to adjust as needed to stabilize and increase durability of tires.