Minimal yet effective file style tread paired with robust volume succeed in less favorable conditions where road tires fail. A true adventurers tire the Gravel King is as at home on road as it is on gravel fire roads and tightly packed dirt. Featuring Panaracers Natural Rubber Compound for superior grip in all weather. Plus model features protite and bead to bead nylon puncture protection resulting in a 4 ply super tough casing