255/65R17 · pickup / double-cab · Bar
255/65R17 tyre pressure in bar
- Size
- 255/65R17
- Class
- pickup / double-cab
- Planning PSI
- 36
- Planning bar
- 2.48
bar
2.48
36 psi · 248 kPa · not a second factory sticker
255/65R17 · 36 psi · 2.48 bar · 248 kPa — estimates. Placard wins.
European stickers print bar. 255/65R17 often sits near 2.48 bar on a pickup / double-cab (36 psi / 248 kPa). 2.48 bar is not “36 divided by ten”. Wide 17-inch truck / SUV. These rows are estimates interpolated for the size, not OEM for a named VIN.
Bar, PSI and kPa
Use the table, then set a cold gauge. 248 kPa is 100 × 2.48 bar on this size.
| Bar | PSI | kPa |
|---|---|---|
| 2.21 | 32 | 221 |
| 2.28 | 33 | 228 |
| 2.34 | 34 | 234 |
| 2.41 | 35 | 241 |
| 2.48 | 36 | 248 |
| 2.55 | 37 | 255 |
| 2.62 | 38 | 262 |
| 2.69 | 39 | 269 |
| 2.76 | 40 | 276 |
| 2.83 | 41 | 283 |
| 2.90 | 42 | 290 |
| 2.96 | 43 | 296 |
| 3.03 | 44 | 303 |
| 3.10 | 45 | 310 |
| 3.17 | 46 | 317 |
| 3.24 | 47 | 324 |
| 3.31 | 48 | 331 |
Estimated 255/65R17 pressure by load
Load moves the rear first on a pickup / double-cab. If the factory placard already has a laden column, use that — not this sketch for 255/65R17.
| Condition | Front (est.) | Rear (est.) |
|---|---|---|
| Driver only / unladen | 36 psi / 2.48 bar / 248 kPa | 38 psi / 2.62 bar / 262 kPa |
| Typical occupancy | 36 psi / 2.48 bar / 248 kPa | 39 psi / 2.69 bar / 269 kPa |
| Payload / towing (sketch) | 37 psi / 2.55 bar / 255 kPa | 40 psi / 2.76 bar / 276 kPa |
Placard versus sidewall
This website maps size searches such as “255/65R17 psi”. It does not replace the VIN label. If the two disagree, the label wins.
What 255/65R17 means
255/65R17 means a 255 millimetre section width, a sidewall that is 65 percent of that width, on a 17-inch rim. The R is radial construction.
Wide 17-inch truck / SUV. Rim diameter 17 in; section 255 mm. Estimates on this page assume a typical load index for the pickup / double-cab class.
Cars often seen on 255/65R17
These catalogue models are often seen on 255/65R17 or a close OEM neighbour. Open the vehicle chart for axle-specific PSI and bar.
How to set 255/65R17
- Measure before the school run, not after the motorway.
- Write LF / RF / RR / RL. Do not keep 255/65R17 numbers in your head.
- Add air in short bursts toward the placard, using 36 psi only as a map.
- If one 255/65R17 is 4 psi down, hunt for a nail before you blame the weather.
- Log date, ambient temperature and the four readings.
Temperature drift
Roughly 1 psi per 5–6 °C. The table uses 36 psi as a 20 °C baseline for 255/65R17.
| Ambient | Gauge | Bar | kPa | Note |
|---|---|---|---|---|
| −5 °C (hard frost) | 33 psi | 2.28 bar | 228 kPa | Gauge reads low; do not overfill once warm |
| 0 °C | 34 psi | 2.34 bar | 234 kPa | Gauge reads low; do not overfill once warm |
| 8 °C (UK winter morning) | 35 psi | 2.41 bar | 241 kPa | Gauge reads low; do not overfill once warm |
| 20 °C (set cold here) | 36 psi | 2.48 bar | 248 kPa | Baseline for this size sketch |
| 30 °C | 38 psi | 2.62 bar | 262 kPa | Do not bleed a hot 255/65R17 |
| 38 °C (heatwave tarmac) | 39 psi | 2.69 bar | 269 kPa | Do not bleed a hot 255/65R17 |
If the door sticker and this 255/65R17 page disagree, the sticker wins.
Questions about 255/65R17
Is 255/65R17 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 255/65R17 in bar?
36 psi is 2.48 bar. Add a tenth of a bar if the placard’s laden column is higher, which is common on vans that wear this size.
When does TPMS warn on 255/65R17?
Direct TPMS typically flags about 25% below target — near 27 psi if you were aiming at 36. Fill to the sticker, not to the lamp.
What PSI should 255/65R17 tyres be?
A pickup / double-cab planning figure is about 36 psi cold (2.48 bar / 248 kPa). Confirm on the vehicle placard — two cars can share 255/65R17 and not share a sticker.
Can I run 255/65R17 at a lower pressure for comfort?
Not as a habit. A soft 255/65R17 cooks the shoulders and dulls steering. Keep load index and stay on the placard.
Handbook: placard · bar vs PSI · cold inflation · all sizes