650/85R38 Firestone Maxi Traction – tyre pressure and load table
- Size
- 650/85R38
- Load index
- 173D/170E
- Overall diameter
- 2078 mm
- Section width
- 701 mm
- Rolling circumference
- 6218 mm
- Recommended rim
- DW23B
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 | 2.6 | 2.8 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 10 Cyclic | 4085 | 5160 | 5960 | 6690 | 7385 | 8045 | 8675 | 9285 | 9670 | 10040 | 10390 | 10725 | 11050 |
| 10 | 4085 | 4910 | 5660 | 6360 | 7020 | 7645 | 8045 | 8415 | 8770 | 9100 | – | – | – |
| 30 | 3355 | 4030 | 4650 | 5225 | 5765 | 6280 | 6605 | 6915 | 7200 | 7475 | – | – | – |
| 40 | 3195 | 3840 | 4425 | 4975 | 5490 | 5980 | 6290 | 6585 | 6860 | 7120 | – | – | – |
| 50 | 3060 | 3680 | 4245 | 4770 | 5265 | 5735 | 6035 | 6310 | 6575 | 6825 | – | – | – |
| 65 | – | 3505 | 4045 | 4545 | 5015 | 5460 | 5745 | 6010 | 6265 | 6500 | – | – | – |
| 70 | – | 3235 | 3730 | 4195 | 4630 | 5040 | 5305 | 5550 | 5780 | 6000 | – | – | – |
Source: Firestone AG Technical Brochure 2022 (EN, PDF 2026-03), p. 26. Values are taken from the manufacturer's published table and may be outdated or wrongly transcribed.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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