Firestone Forestry Special Severe Service tires are specifically engineered to take on the extremes of forestry operation – including the demands of higher horsepower machines and heavier loads. These tires feature more lugs for better traction, deeper lugs for more wear and higher ply ratings for increased load carrying capacity.Heavy duty bead and rim protector helps keep out debrisTubeless design but a tube may be usedNylon cord body protects against impacts and moisture