ITP Mud Lite A/T Tires Features Ideal for OEM replacement in the deep-lug XL model Revolutionary all-condition tire: it's a mud tire that's designed for the trail, a trail tire that slings mud with the best of them Computer-aided engineering has resulted in the lightest mud/trail tire ever Unique center tread contact area provides a smooth, radial-like ride Pure trail tire handling combines with pure mud tire performance Angled shoulder lugs provide unmatched mud traction 6-ply rating for unmatched durability Perhaps best of all, the Mud Lite is priced right. Shop and compare - you won't find a tire that's lighter, tougher or more capable at such a reasonable price XL has 1-1/8 lug, AT has 3/4 lug