LT265/70R17 · LT-metric truck · Bar
Recommended bar for LT265/70R17
- Size
- LT265/70R17
- Class
- LT-metric truck
- Planning PSI
- 55
- Planning bar
- 3.79
bar
3.79
55 psi · 379 kPa · not a second factory sticker
LT265/70R17 · 55 psi · 3.79 bar · 379 kPa — estimates. Placard wins.
European stickers print bar. LT265/70R17 often sits near 3.79 bar on a LT-metric truck (55 psi / 379 kPa). 3.79 bar is not “55 divided by ten”. Typical LT 17-inch. These rows are estimates interpolated for the size, not OEM for a named VIN. LT-metric sizes print a load range. The vehicle door sticker, not the LT sidewall maximum, is still the operating pressure.
Bar, PSI and kPa
1 bar ≈ 14.5 psi; 1 psi ≈ 6.89 kPa. Planning midpoint for LT265/70R17: 55 psi = 3.79 bar = 379 kPa.
| Bar | PSI | kPa |
|---|---|---|
| 3.03 | 44 | 303 |
| 3.17 | 46 | 317 |
| 3.45 | 50 | 345 |
| 3.52 | 51 | 352 |
| 3.59 | 52 | 359 |
| 3.65 | 53 | 365 |
| 3.72 | 54 | 372 |
| 3.79 | 55 | 379 |
| 3.86 | 56 | 386 |
| 3.93 | 57 | 393 |
| 4.00 | 58 | 400 |
| 4.07 | 59 | 407 |
| 4.14 | 60 | 414 |
| 4.21 | 61 | 421 |
| 4.27 | 62 | 427 |
| 4.34 | 63 | 434 |
| 4.41 | 64 | 441 |
| 4.48 | 65 | 448 |
| 4.55 | 66 | 455 |
| 4.62 | 67 | 462 |
| 5.52 | 80 | 552 |
Estimated LT265/70R17 pressure by load
Load moves the rear first on a LT-metric truck. If the factory placard already has a laden column, use that — not this sketch for LT265/70R17.
| Condition | Front (est.) | Rear (est.) |
|---|---|---|
| Driver only / unladen | 55 psi / 3.79 bar / 379 kPa | 59 psi / 4.07 bar / 407 kPa |
| Typical occupancy | 55 psi / 3.79 bar / 379 kPa | 60 psi / 4.14 bar / 414 kPa |
| Payload / towing (sketch) | 56 psi / 3.86 bar / 386 kPa | 67 psi / 4.62 bar / 462 kPa |
Placard versus sidewall
The sidewall of a LT265/70R17 may say 51 psi or 350 kPa. That is a carcass maximum. Operating pressure is the tyre-information placard on the driver’s door pillar.
What LT265/70R17 means
LT265/70R17 means a 265 millimetre section width, a sidewall that is 70 percent of that width, on a 17-inch rim. The R is radial construction.
Typical LT 17-inch. Rim diameter 17 in; section 265 mm. Estimates on this page assume a typical load index for the LT-metric truck class.
Cars often seen on LT265/70R17
These catalogue models are often seen on LT265/70R17 or a close OEM neighbour. Open the vehicle chart for axle-specific PSI and bar.
How to set LT265/70R17
- Park so the LT265/70R17 tyres are cold (three hours, or less than about a mile).
- Read the door-pillar placard for that car — not the LT265/70R17 sidewall maximum.
- If the sticker is missing, 55 psi / 3.79 bar is only a LT-metric truck planning figure for this size.
- Set all four with a calibrated gauge. A 3 psi miss on one corner shows up as a wander.
- Refit valve caps and reset TPMS if the handbook asks for a relearn.
Temperature drift
Roughly 1 psi per 5–6 °C. The table uses 55 psi as a 20 °C baseline for LT265/70R17.
| Ambient | Gauge | Bar | kPa | Note |
|---|---|---|---|---|
| −5 °C (hard frost) | 52 psi | 3.59 bar | 359 kPa | Gauge reads low; do not overfill once warm |
| 0 °C | 53 psi | 3.65 bar | 365 kPa | Gauge reads low; do not overfill once warm |
| 8 °C (UK winter morning) | 54 psi | 3.72 bar | 372 kPa | Gauge reads low; do not overfill once warm |
| 20 °C (set cold here) | 55 psi | 3.79 bar | 379 kPa | Baseline for this size sketch |
| 30 °C | 57 psi | 3.93 bar | 393 kPa | Do not bleed a hot LT265/70R17 |
| 38 °C (heatwave tarmac) | 58 psi | 4 bar | 400 kPa | Do not bleed a hot LT265/70R17 |
If the door sticker and this LT265/70R17 page disagree, the sticker wins.
Questions about LT265/70R17
Should I bleed pressure after a motorway run?
No. Heat raises the gauge. Set cold only. Bleeding a hot tyre leaves it low the next morning.
What PSI should LT265/70R17 tyres be?
A LT-metric truck planning figure is about 55 psi cold (3.79 bar / 379 kPa). Confirm on the vehicle placard — two cars can share LT265/70R17 and not share a sticker.
Is LT265/70R17 the same as a plus-size swap?
Only if that is the size you fitted. Overall diameter should stay close to OEM. Pressure still follows the car, with load index at or above original.
What is LT265/70R17 in bar?
55 psi is 3.79 bar. Add a tenth of a bar if the placard’s laden column is higher, which is common on vans that wear this size.
What is LT265/70R17 in kPa?
379 kPa is the planning midpoint (100 kPa = 1 bar). 386 kPa is one PSI higher.
Handbook: placard · bar vs PSI · cold inflation · all sizes