Size Standard Ply Section Overall Max Pressure Load/ Rim Rating Width Diameter Load KPa Speed 12.00R20 8.5 18 315 1125 4000 900 153/156k 12.00R20 8.5 16 315 1125 3750 830 151/154k 11.00R20 8 18 293 1084 3350 940 149/152k 11.00R20 8 16 293 1084 3250 840 147/150k 10.00R20 7.5 18 278 1051 3250 940 146/149k 10.00R20 7.5 16 278 1051 3000 840 143/146k identical to Michelin