IF 800/70R38 Firestone Maxi Traction IF – tyre pressure and load table
- Size
- IF 800/70R38
- Load index
- 184D/181E
- Overall diameter
- 2080 mm
- Section width
- 825 mm
- Rolling circumference
- 6148 mm
- SRI
- 975 mm
- Recommended rim
- DW27B
- Size equivalent
- ≈ 20.8x38
Load and pressure table (kg per tyre)
| km/h \ bar | 0.6 | 0.8 | 1 | 1.2 | 1.4 | 1.6 | 1.8 | 2 | 2.2 | 2.4 |
|---|---|---|---|---|---|---|---|---|---|---|
| 10 HT | 4095 | 4995 | 5820 | 6605 | 7345 | 8060 | 8415 | 8750 | 9060 | 9360 |
| 10 LT | 5000 | 6100 | 7110 | 8070 | 8970 | 9840 | 10280 | 10685 | 11065 | 11430 |
| 20 LT | 4255 | 5185 | 6045 | 6860 | 7630 | 8370 | 8740 | 9085 | 9410 | 9720 |
| 30 | 4095 | 4995 | 5820 | 6605 | 7345 | 8060 | 8415 | 8750 | 9060 | 9360 |
| 40 | 3940 | 4805 | 5600 | 6355 | 7065 | 7750 | 8095 | 8415 | 8715 | 9000 |
| 50 | 3940 | 4805 | 5600 | 6355 | 7065 | 7750 | 8095 | 8415 | 8715 | 9000 |
| 65 | – | – | 5600 | 6355 | 7065 | 7750 | 8095 | 8415 | 8715 | 9000 |
| 70 | – | – | 5095 | 5780 | 6425 | 7050 | 7365 | 7655 | 7930 | 8190 |
Source: Firestone AG Technical Brochure 2022 (EN, PDF 2026-03), p. 30. Values are taken from the manufacturer's published table and may be outdated or wrongly transcribed. Always check the manufacturer's current documentation and the vehicle manual before setting tyre pressure.
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