Goodyear Optitrac R-1W 600/70 R30 158D Goodyear Optitrac R-1W 600/70 R30 158D Goodyear Optitrac R-1W600/70 R30 158D Vehicle type: Special Usage: Farm Manufacturer: Goodyear Width: 600 Height: 70 Construction: R Diameter: 30 Load index: 158 Speed index: D Highest Price: