This paddle-like shoulder configuration provides maximum side bite for climbing in and out of the mud without compromising ride comfort on trails and hard pack, Proven ""chevron"" style tread pattern, designed to deliver unparalleled forward traction, Lug height is graduated, starting at 1.5"" at center, growing to 2"" at the shoulder, Super-durable rubber compound to protect against abrasions, chips and cuts, Grooved center lugs to channel away mud and debris, 6-ply rated, Blackwall