This 6-ply rated radial tire’s compound was reformulated with more natural rubber for its elastic properties.Traction spikes were added for ultimate grip and durability in a wide range of terrain: light mud, dirt, gravel, and hardpack.Each lug is dimpled with more biting edges for better traction and stability.A surprisingly aggressive tread pattern means the dirt devil offers a great experience no matter what type of landscape you’re looking to dominate.A/t tire has a tread depth of.625" and the x/t model tread depth is 1.21".