Pre-Mounted  ST205/75D15 Bias Trailer Tire on Rim -  15" Silver Modular Style Wheel with a 5 Lug on 4.5" Center Bolt Pattern. Tire is Load Range C, 6 Ply Bias, with Max Load of 1820 pounds and Max Pressure of 50 PSI. Aspect Ratio 75, Section Width 205, and Rim Diameter 15 Inches. Speeding Rating M with Load Index 101. Tread Depth 7.8/32nds. Center Bore 3.19" and Offset "0" with Hub Stud Nut Requirement of 1/2-20 60 Degree Cone Nut. (note: some tires will have slight dip/indent on sidewall, called a splice, it occurs in manufacturing, this is not a defect in any way). Warranty Included