- Performance tread - the void ratio in This New Performance Radial has been redistributed for increased tire-to-road contact Which leads to improvements in treadwear and handling. - even wearing Design - a Notched, Solid center Rib along with a refined tread element shape, Helps Provide even treadwear. shoulder slotting is also Designed for resistance to Irregular Wear while providing Solid, All-weather performance. - quiet ride - pitch sequence has been optimized to reduce tread Related tire noise for increased consumer riding comfort.