Brand Pirelli Size 11R22.5 Model H89 Plus Steer Weight (lbs) 130 Bias / Radial radial Ply Rating 16PR / H Max Dual Load (lbs) 6005 Max Speed (mph) 81 Load Index / Speed Symbol 146/143L Inflation Pressure (psi) 120 Standard Rim / Flange 8.25 Tread Depth (32nd) 18 Overall Diameter (in) 41.30 Overall Width (in) 11.60 Static Loaded Radius (in) 19.30