The Tread’s Non-Directional Design Allows For Cross Rotation For More Even Wear And A Longer Tread Life. Large Outer Tread Blocks Increase The Amount Of Road Contact Surface Area, Improving Cornering Grip And Performance In Dry Conditions. Asymmetric Sipe And Groove Count Combined With A Variable Pitch Tread Block Design Work Together To Reduce Annoying Noise Frequency Peaks. Two Wide Circumferential Grooves Channel Water Away From The Tread Blocks, While The High Number Of Inner Lateral Grooves Provide Biting Edges For Wet Traction. NT420V In LT-Metric Sizes Are Constructed To Handle Heavier ¾ To 1-Ton Trucks Like Heavy-Duty Diesel Trucks.