Martin Wheel 4-Hole Steel Golf Wheel (8x7" / 4x4") Exceeds DOT requirements for highway use. Best replacement wheel for utiltiy, RV and boat trailers. Fits tire sizes: (215/60-8); (18.5x850-8) Powder-coat finish resists chipping, scratching, fading and corrosion for a great appearance and longer life. Max Load: 935 pounds at 50psi Valve stem sold separately. For valve stems, see Part #TR-413-2PAK: Martin Wheel TR-413 Valve Stem 2 Pack