eCustomRim Two Radial Trailer Tires On Rims ST175/80R13 175/80R-13 5 Lug Silver Modular 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"