Sold individually. The Artrax MXT is designed for ATV riders who need a superior handling dirt tire that will tackle extreme terrain, giving traction, control and performance, while offering adequate feedback to make you a better rider. Artrax MXT uses a heavy duty tire carcass for maximum shock absorption and durablility. The X-dog bone tread pattern and the concave center relief allow for flex during aggressive turning, helping the MXT tire hook up through the turns. Artrax uses two types of shoulder knobs on the MXT ATV tire for extreme bite to provide maximum traction and control. Tire ply: 4.