ST225/75R15 Trailer Tire Load Range E on 15 White Spoke 6 Bolt Trailer Wheel Tire Size: 225/75R15 Load Range: E Tire Weight Rating: 2830 Lbs. Max. Pressure: 80 PSI Bolt Configuration: 6 Lug 5.5" Center - See diagram for fitment Pre Mounted Radial Tire On Steel Wheel Center Bore: 4.25"