Kenda Loadstar special trailer tires outshine other bias tires. Flatter tread offers improved stability for excellent handling. Special trailer tire design couples the strength of a bias tire with the durability and stability of a radial tire. Created specifically for trailers and not intended for use on other vehicles. Advanced rubber compound means longer tread wear. Low rolling resistance for smooth ride. Fits 15" x 6" rim (not included). 28.1" O.D. Created specifically for trailers Low rolling resistance | Kenda ST225/75D15 K550 ST Bias Trailer Tire With 2,540-lb. Capacity