Table of Contents

1. Radial Ply

Imported tractors are normally fitted with Radial Ply tyres. These tyres are all marked with a Load Index and Speed Symbol on the sidewall. A copy of the Speed Symbol table is below.

However, these merely indicate the tyres maximum carrying capacity and speed at the maximum speed. When it comes to recommended tyre pressures, it would be advisable to either use the tyre pressures as recommended by the tractor manufacturer, or alternatively call in a tyre expert to recommend tyre pressures. This is particularly important when looking at 4 wheel drive or Front Wheel Assist tractors.

Speed Symbol Speed km/h
A1 5
A2 10
A3 15
A4 20
A5 25
A6 30
A7 35
A8 40
B 50
C 60
D 65
E 70
F 80
G 90

 

LI kg LI kg LI kg LI kg
96  710 119  1360 142  2650 165 5150
97  730 120  1400 143  2725 166 5300
98  750 121  1450 144  2800 167 5450
99  775 122  1500 145  2900 168 5600
100  800 123  1550 146  3000 169 5800
101  825 124  1600 147  3075 170 6000
102  850 125  1650 148  3150 171 6150
103  875 126  1700 149  3250 172 6300
104  900 127  1750 150  3350 173 6500
105  925 128  1800 151  3450 174 6700
106  950 129  1850 152  3550 175 6900
107  975 130  1900 153  3650    
108  1000 131  1950 154  3750    
109  1030 132  2000 155  3875    
110  1060 133  2060 156  4000    
111  1090 134  2120 157  4125    
112  1120 135  2180 158  4250    
113  1150 136  2240 159  4375    
114  1180 137  2300 160  4500    
115  1215 138  2360 161  4625    
116  1250 139  2430 162  4759    
117  1285 140  2500 163  4875    
118  1320 141  2575 164  5000