Special Trailer Radial Tire and Wheel Assembly with White Spoke, Size: ST175-80R13. Greenball has tires for many different applications, from motorsports to motor homes, OTR to golf cart tires. Transmaster ST Trailer Radial Tire and wheel. Two steel cord belts for added strength and vehicle stability. Two radial plies of smooth riding polyester-cord. Rib type tread with high traction tread compound. Special weather-resistant side wall compound. Mounted on white spoke wheels. Tire Size: ST175/80R13. Load Range: LRC. Tread Depth 32nds inch: 9, O.D.: 24.0, S.W.: 7.0. Rim Width: 4.5. PSI: 50. Max Load: 1,360lbs. 1 per package.