KT226 Size PR Load Index Speed Symbol Standard Rim Inflation Pressure (kpa) 10.00R20 18 149/146 K 7.50 930 11.00R20 18 152/149 G 8.00 930 12.00R20 18 154/151 J 8.50 830 12.00R20 20 156/153 G 8.50 900 KT228 Size PR Load Index Speed Symbol Standard Rim Inflation Pressure (kpa) 11R24.5 14 146/143 M 8.25 720 11R24.5 16 149/146 M 8.25 830 295/75R22.5 14 144/141 M 9.00 760 295/75R22.5 16 146/143 M 9.00 830