eCustomRim Two Trailer Tires ST185/80D13 185/80D-13 ST 185 80 D 13 Boat Camper RV Spare Tire Size: 185/80D13 Load Range: C Tire Weight Rating: 1480 Lbs. Max. Pressure: 50 PSI Overall Diameter: 24.65" Tire Type: Bias Ply Tread Depth: 7.8/32" Manufacturer's Warranty: Two Years