Designed for the drive axle, the SmartFlex DH51 from Hankook is a next-generation truck tyre, rich in technology, intended for regional transport. The widened tread increases the contact area and grip, thus improving fuel economy. The central blocks, equipped with "smart" 3D sipes, adapt and stiffen on the ground, then open to ensure optimal rubber ventilation. Excess water is also easily evacuated thanks to the numerous deep grooves and wide zigzag longitudinal grooves. The V-shaped central rib ensures excellent traction. Braking distances are reduced.