Discount Ramps Carrier Star ST175 80D13 Range B Silver Rim Snowmobile Trailer Wheel Tire Size: 175/80D13 Load Range: B Tire Weight Rating: 1100 Lbs. Max. Pressure: 35 PSI Bolt Configuration: 5 Lug 4.5" Center - See diagram for fitment Pre Mounted Bias Ply Tire On Steel Wheel Center Bore: 3.19"