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255/70R22.5 tire size
Truck and trailer tire. 255/70R22.5 is 36.3 – 37.3 inches tall in manufacturer data books, measured on 7 tire models.
What 255/70R22.5 means
255 mm nominal section width, 70 aspect ratio (sidewall height = 70% of width), R radial, for a 22.5-inch rim.
Dimensions
- Overall diameter
- 36.3 in (922 mm) – 37.3 in (947 mm)
- Section width
- 9.8 in (249 mm) – 10.4 in (264 mm)
- Static loaded radius
- 16.9 in (429 mm) – 17.5 in (444 mm)
- Revolutions per mile
- 557 – 572 (346 – 355 per km)
Range across the tire models in the Bridgestone (2017) and Apollo (2023) truck data books; tread depth and model change the numbers.
Load ranges and maximum loads
- Load range G
- 5,205 lb (2,361 kg) @ 110 psi (7.6 bar)
dual: 4,675 lb (2,121 kg) @ 110 psi (7.6 bar) - Load range H
- 5,510 lb (2,499 kg) @ 120 psi (8.3 bar)
dual: 5,070 lb (2,300 kg) @ 120 psi (8.3 bar)
Maximum load per tire at the cold pressure shown. Single = 2 tires per axle end-to-end, dual = per tire in a pair.
Load & inflation table
Single, load range H: load by cold pressure
- 80 psi (5.5 bar)
- 4,190 lb (1,901 kg)
- 85 psi (5.9 bar)
- 4,370 lb (1,982 kg)
- 90 psi (6.2 bar)
- 4,550 lb (2,064 kg)
- 95 psi (6.6 bar)
- 4,675 lb (2,121 kg)
- 100 psi (6.9 bar)
- 4,895 lb (2,220 kg)
- 105 psi (7.2 bar)
- 5,065 lb (2,297 kg)
- 110 psi (7.6 bar)
- 5,205 lb (2,361 kg)
- 115 psi (7.9 bar)
- 5,400 lb (2,449 kg)
- 120 psi (8.3 bar)
- 5,510 lb (2,499 kg)
Dual, load range H: load by cold pressure
- 80 psi (5.5 bar)
- 3,970 lb (1,801 kg)
- 85 psi (5.9 bar)
- 4,110 lb (1,864 kg)
- 90 psi (6.2 bar)
- 4,275 lb (1,939 kg)
- 95 psi (6.6 bar)
- 4,410 lb (2,000 kg)
- 100 psi (6.9 bar)
- 4,455 lb (2,021 kg)
- 105 psi (7.2 bar)
- 4,610 lb (2,091 kg)
- 110 psi (7.6 bar)
- 4,675 lb (2,121 kg)
- 115 psi (7.9 bar)
- 4,915 lb (2,229 kg)
- 120 psi (8.3 bar)
- 5,070 lb (2,300 kg)
Bridgestone Truck Tire Load & Inflation Tables 2018 (TRA-based). Pressure is the minimum for the load.
Sources: Bridgestone Commercial Truck Tire Data Book v17.1, Apollo US TBR Technical Data Book 2023, Bridgestone Load & Inflation Tables 2018 v18.1. Checked October 2026. How we source data.