420/85R30 Firestone Performer 85 Extra – tyre pressure and load table
- Size
- 420/85R30
- Load index
- 140D/137E
- Overall diameter
- 1475 mm
- Section width
- 446 mm
- Rolling circumference
- 4425 mm
- SRI
- 700 mm
- Recommended rim
- DW15L
- Size equivalent
- ≈ 16.9x30
Load and pressure table (kg per tyre)
| km/h \ bar | 0.6 | 0.8 | 1 | 1.2 | 1.4 | 1.6 |
|---|---|---|---|---|---|---|
| 10 | 1990 | 2300 | 2570 | 2815 | 3040 | 3250 |
| 30 | 1525 | 1810 | 2070 | 2350 | 2620 | 2875 |
| 40 | 1455 | 1725 | 1975 | 2240 | 2495 | 2740 |
| 50 | 1390 | 1655 | 1890 | 2150 | 2395 | 2625 |
| 65 | – | 1575 | 1800 | 2045 | 2280 | 2500 |
| 70 | – | 1450 | 1660 | 1885 | 2095 | 2300 |
Source: Firestone AG Technical Brochure 2022 (EN, PDF 2026-03), p. 52. Values are taken from the manufacturer's published table and may be outdated or wrongly transcribed.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.
Open in the Däcktryck.se appMore Firestone Performer 85 Extra
- 250/85R24 109D/106E
- 250/85R28 112D/109E
- 280/85R20 112D/109E
- 280/85R24 115D/112E
- 280/85R24 130A8/130B
- 280/85R28 118D/115E
- 320/85R20 119D/116E
- 320/85R24 122D/119E
- 320/85R28 124D/121E
- 320/85R36 128D/125E
- 340/85R24 125D/122E
- 340/85R24 136A8/136B