H188 13" x 4.5" White Spoke Trailer Wheel with bias ST17580D13C Tire Mounted (4-4 bolt circle) Tire Size: 175/80D13 Load Range: C Tire Weight Rating: 1360 Lbs. Max. Pressure: 50 PSI Bolt Configuration: 4 Lug 4" Center - See diagram for fitment Pre Mounted Bias Ply Tire On Steel Wheel Center Bore: 2.65"