2-Pack Radial Trailer Tires ST175/80R13 Load C 5 Lug Black Pinnacle Aluminum Rim Tire Size: 175/80R13 Load Range: C Tire Weight Rating: 1360 Lbs. Max. Pressure: 50 PSI Bolt Configuration: 5 Lug 4.5" Center - See diagram for fitment Pre Mounted Radial Tire On Aluminum Wheel Center Bore: 3.19"