Rainier ST ST175/80R13 LRC Radial Trailer Tire on 13" 5 Lug Galvanized Spoke Trailer Wheel 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 Steel Wheel Center Bore: 3.19"