16" Aluminum 7 Spoke Wheel. The exact size is 16" x 6" 8 lug on 6.5" bolt pattern. Center hole diameter is 4.9 inches. Max load is 3750 Lbs per wheel. Max Psi: 110 lbs. This listing is for the wheel only. Most common tire sizes mounted on this wheel are 235/85R16 and 235/80R16. If purchasing center caps the size you will need is 4.9 inches.