- NanoEnergy compound minimizes fuel consumption and qualifies it as SmartWay Verified - Extra-wide tread provides optimum footprint to increase mileage - 6 groove design optimizes contact pressure for long even wear - 24/32 inch tread depth, maximizes tread life - E-balance profile minimizes growth of the tread profile and maintains uniform and flatter tread radius for the entire life of the casing - Enhanced, high speed casing resists fatigue - Unique belt package protects casing integrity