Goodyear Optitrac R-1W 480/70 R38 145D Goodyear Optitrac R-1W 480/70 R38 145D Goodyear Optitrac R-1W480/70 R38 145D Vehicle type: Special Usage: Farm Manufacturer: Goodyear Width: 480 Height: 70 Construction: R Diameter: 38 Load index: 145 Speed index: D Highest Price: