Carrier Star Trailer Tire and 5-Hole Mod Wheel (5/4.5) - 175/80D-13 Exceeds DOT requirements for highway use. Best replacement wheel for utility, RV and boat trailers Bolt Circle Pattern: 5 holes on 4.5" circle Powder-coat finish resists chipping, scratching, fading and corrosion for a great appearance and longer life Bias ply tire; Load Range C Max Load: 1360 lbs @ 50 psi