Gac Gonow · GA500 · Bar
Gac Gonow GA500 tyre pressure in bar
- Drivetrain
- front-wheel drive
- Body
- light commercial
- PSI F / R
- 35-45 / 45-65
- Bar F / R
- 2.4-3.1 / 3.1-4.5
bar
2.76 / 3.79
35-45 / 45-65 psi · 276 / 379 kPa
35-45 psi F · 45-65 psi R · 2.4-3.1 / 3.1-4.5 bar · 276/379 kPa
European and UK handbooks usually quote bar. The Gac Gonow GA500 catalogue is 2.4-3.1 bar front and 3.1-4.5 bar rear (midpoint 2.76 / 3.79). A 10 °C overnight drop takes roughly 1 psi (0.07 bar) off a closed Gac Gonow tyre.
Bar, PSI and kPa
Bar-led conversions around the Gac Gonow GA500. 2.4-3.1 bar is not “35-45 divided by ten”.
| Bar | PSI | kPa |
|---|---|---|
| 2.41 | 35 | 241 |
| 2.48 | 36 | 248 |
| 2.62 | 38 | 262 |
| 2.76 | 40 | 276 |
| 3.03 | 44 | 303 |
| 3.10 | 45 | 310 |
| 3.45 | 50 | 345 |
| 3.79 | 55 | 379 |
| 4.14 | 60 | 414 |
| 4.48 | 65 | 448 |
Gac Gonow GA500 placard versus sidewall
Sidewall PSI is a carcass maximum. Recommended operating pressure for this GA500 is the pillar sticker, near 40/55 psi.
Estimated pressure by tyre size (LT245/75R16 and others)
Planning cold pressures for sizes often seen on a light commercial. This GA500 sample opens with LT245/75R16, then LT265/70R17 and 255/65R17.
| Tyre size | Front PSI | Rear PSI | Front bar | Rear bar | Front kPa | Rear kPa | Note |
|---|---|---|---|---|---|---|---|
| LT245/75R16 | 48 | 67 | 3.31 | 4.62 | 331 | 462 | LT-metric, higher load |
| LT265/70R17 | 48 | 69 | 3.31 | 4.76 | 331 | 476 | LT 17-inch |
| 255/65R17 | 43 | 60 | 2.96 | 4.14 | 296 | 414 | Highway 17-inch |
| 275/65R18 | 43 | 61 | 2.96 | 4.21 | 296 | 421 | Plus-size 18-inch |
| 285/70R17 | 44 | 62 | 3.03 | 4.27 | 303 | 427 | Wide all-terrain |
| 265/70R17 | 43 | 60 | 2.96 | 4.14 | 296 | 414 | Typical 17-inch load tyre |
| 245/70R16 | 42 | 59 | 2.9 | 4.07 | 290 | 407 | Common 16-inch all-terrain |
| 235/75R15 | 41 | 58 | 2.83 | 4 | 283 | 400 | Older compact truck |
Load notes
Load moves the rear of a light commercial first. If the factory placard already has a “laden” column, use that instead of these sketches.
| Condition | Front (est.) | Rear (est.) |
|---|---|---|
| Driver only | 40 psi / 2.76 bar | 55 psi / 3.79 bar |
| Full occupancy | 41 psi / 2.83 bar | 57 psi / 3.93 bar |
| Motorway + luggage | 42 psi / 2.9 bar | 59 psi / 4.07 bar |
How to set the GA500
- Measure before the school run, not after the M25.
- Write LF / RF / RR / RL. Do not keep GA500 numbers in your head.
- Add air in short bursts toward 40 psi (2.76 bar) front and 55 psi rear.
- If one corner 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 40 psi as a 20 °C baseline for this GA500.
| Ambient | Gauge (front mid) | Bar | kPa | Note |
|---|---|---|---|---|
| −5 °C (hard frost) | 37 psi | 2.55 bar | 255 kPa | Gauge reads low; do not overfill once warm |
| 0 °C | 38 psi | 2.62 bar | 262 kPa | Gauge reads low; do not overfill once warm |
| 8 °C (UK winter morning) | 39 psi | 2.69 bar | 269 kPa | Gauge reads low; do not overfill once warm |
| 20 °C (set cold here) | 40 psi | 2.76 bar | 276 kPa | Baseline |
| 30 °C | 42 psi | 2.9 bar | 290 kPa | Do not bleed a hot tyre |
| 38 °C (heatwave tarmac) | 43 psi | 2.96 bar | 296 kPa | Do not bleed a hot tyre |
Gac Gonow notes
No special Gac Gonow exception: the GA500 uses the door-pillar placard. Size estimates on this page only help if you have left the original load index behind.
Spare and inflator kit
A matching full-size spare on the Gac Gonow GA500 usually follows the higher axle (often the rear, near 45-65 psi). A space-saver is commonly 60 psi / 4.1 bar — read that tyre’s own sidewall. An inflator kit is not a spare; check the sealant date.
If the Gac Gonow sticker and this page disagree, the sticker wins.
Other Gac Gonow models
Questions about this GA500
Front versus rear on the Gac Gonow GA500?
This row is 35-45 F / 45-65 R. Even when they match, a laden rear can justify a higher number if the sticker prints one.
What tyre pressure should a Gac Gonow GA500 use?
Catalogue reference is 35-45 psi front and 45-65 psi rear (2.4-3.1 / 3.1-4.5 bar), cold. Confirm on the door-pillar placard.
What PSI if I plus-size toward 255/65R17?
Keep load index at or above OEM. Low-profile sizes usually stay at or slightly above the placard. Use LT245/75R16, LT265/70R17 and 255/65R17 as a planning band.
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.
Is the sidewall number correct on a Gac Gonow GA500?
No. Sidewall PSI is a maximum. The GA500 placard is the operating target, near 35-45/45-65 psi.
Handbook: placard · bar vs PSI · front vs rear · cold inflation