Cooper Zeon RS3-S Radial Tire - 225/40R18 92Z XL Tire only Advanced technology mold profile provides more tread-to-road contact. Asymmetric design allows for tread pattern tuning. Circumferential grooves allow for ultimate dry traction, increased handling and cornering ability..Silica formulated tread compound is designed for exceptional wet driving performance. Tire weight:25 kg