Explanations of Indications on Agricultural Tires
| TIRE IDENTIFICATION (Inch Identification) |
| 18.4 |
Tire width in inches |
| R |
"Radial" type |
| 38 |
Rim diameter in inches |
| Super 9 |
Tire type |
| 146 |
Load index 146 = 3000 kg at 40 km/h |
| A8 |
Speed symbol (40 km/h) |
| 143 |
Load index 143 = 2725 kg at 50 km/h |
| B |
Speed symbol (50 km/h) |
| TIRE IDENTIFICATION (Metric Identification) |
| 480 |
Tire width in millimeters |
| 70 |
Height-width ratio x 100 |
| R |
"Radial" type |
| 30 |
Rim diameter in inches |
| Super 9L |
Tire type (L = large) |
| 141 |
Load index 141 = 2575 kg at 40 km/h |
| A8 |
Speed symbol (40 km/h) |
| 138 |
Load index 138 = 2360 kg at 50 km/h |
| B |
Speed symbol (50 km/h) |
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| INDEX |
kg |
INDEX |
kg |
INDEX |
kg |
INDEX |
kg |
INDEX |
kg |
| 80 |
450 |
100 |
800 |
120 |
1400 |
140 |
2500 |
160 |
4500 |
| 81 |
462 |
101 |
825 |
121 |
1450 |
141 |
2575 |
161 |
4625 |
| 82 |
475 |
102 |
850 |
122 |
1500 |
142 |
2650 |
162 |
4750 |
| 83 |
487 |
103 |
875 |
123 |
1550 |
143 |
2725 |
163 |
4875 |
| 84 |
500 |
104 |
900 |
124 |
1600 |
144 |
2800 |
164 |
5000 |
| 85 |
515 |
105 |
925 |
125 |
1650 |
145 |
2900 |
165 |
5150 |
| 86 |
530 |
106 |
950 |
126 |
1700 |
146 |
3000 |
166 |
5300 |
| 87 |
545 |
107 |
975 |
127 |
1750 |
147 |
3075 |
167 |
5450 |
| 88 |
560 |
108 |
1000 |
128 |
1800 |
148 |
3150 |
168 |
5600 |
| 89 |
580 |
109 |
1030 |
129 |
1850 |
149 |
3250 |
169 |
5800 |
| 90 |
600 |
110 |
1060 |
130 |
1900 |
150 |
3350 |
170 |
6000 |
| 91 |
615 |
111 |
1090 |
131 |
1950 |
151 |
3450 |
171 |
6150 |
| 92 |
630 |
112 |
1120 |
132 |
2000 |
152 |
3550 |
172 |
6300 |
| 93 |
650 |
113 |
1150 |
133 |
2060 |
153 |
3650 |
173 |
6500 |
| 94 |
670 |
114 |
1180 |
134 |
2120 |
154 |
3750 |
174 |
6700 |
| 95 |
690 |
115 |
1215 |
135 |
2180 |
155 |
3875 |
175 |
6900 |
| 96 |
710 |
116 |
1250 |
136 |
2240 |
156 |
4000 |
176 |
7100 |
| 97 |
730 |
117 |
1285 |
137 |
2300 |
157 |
4125 |
177 |
7300 |
| 98 |
750 |
118 |
1320 |
138 |
2360 |
158 |
4250 |
178 |
7500 |
| 99 |
775 |
119 |
1360 |
139 |
2430 |
159 |
4375 |
179 |
7750 |
Speed Identification Symbol
| Speed symbol |
Speed (km/h) |
| A1 |
5 |
| A2 |
10 |
| A3 |
15 |
| A4 |
20 |
| A5 |
25 |
| A6 |
30 |
| A7 |
35 |
| A8 |
40 |
| B |
50 |
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Load Capacity (Depending on Speed)
Speed
(km/h) |
A6 |
A8 |
| 8/10 |
+50% |
+50% |
| 15 |
+34% |
+34% |
| 20 |
+23% |
+23% |
| 25 |
+11% |
+11% |
| 30 |
0% |
+7% |
| 35 |
-5% |
+3% |
| 40 |
-10% |
0% |
| 45 |
|
-4% |
| 50 |
|
-9% |
Only for operations which do not require a high torque at all times. The variations shown above do not apply to narrow tires. Also refer to the tire pressure charts on the following pages.
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