Martin Wheel 5-Hole Steel Custom Spoke Trailer Wheel (15x6" / 5x4.5") Exceeds DOT requirements for highway use. Best replacement wheel for utiltiy, RV and boat trailers. Fits tire sizes: (ST205/75D15); (ST205/75R15); (ST225/75D15); (ST225/75R15) Powder-coat finish resists chipping, scratching, fading and corrosion for a great appearance and longer life. Max Load: 2050 pounds at 75psi Valve stem sold separately. For valve stems, see Part #TR-413-2PAK: Martin Wheel TR-413 Valve Stem 2 Pack