

The Firestone new generaion of standard series tyres, used in versatile agricultural conditions.
| Sizes | Ply | Load Index | Speed Rating | Overall Width (mm) | Overall Diameter (mm) | Loaded Radius (mm) | Rolling Circ.±2% (mm) | Recom. Rim (Inch) |
|---|---|---|---|---|---|---|---|---|
| 280/85 R24 | 115 | A8 | 292 | 1086 | 489 | 3269 | W10 | |
| 320/85 R24 | 122 | A8 | 327 | 1159 | 516 | 3481 | W11 | |
| 340/85 R28 | 127 | A8 | 354 | 1300 | 584 | 3908 | W12 | |
| 340/85 R38 | 133 | A8 | 353 | 1543 | 693 | 4653 | W12 | |
| 380/85 R28 | 133 | A8 | 396 | 1359 | 611 | 4121 | W13 | |
| 380/85R24 | 131 | A8 | 390 | 1256 | 564 | 3793 | W13 | |
| 420/85 R28 | 139 | A8 | 438 | 1425 | 640 | 4309 | W15L | |
| 420/85 R30 | 140 | A8 | 438 | 1475 | 666 | 4447 | W15L | |
| 420/85 R34 | 142 | A8 | 451 | 1568 | 704 | 4739 | W15L | |
| 460/85 R30 | 145 | A8 | 475 | 1544 | 694 | 4647 | W16L | |
| 460/85 R34 | 147 | A8 | 475 | 1646 | 742 | 4975 | W16L | |
| 460/85 R38 | 149 | A8 | 489 | 1761 | 793 | 5323 | W16 | |
| 520/85 R38 | 155 | A8 | 536 | 1849 | 832 | 5585 | W18L |