Xpeng G9 tyres
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The Xpeng G9 leaves the factory on 255/45 R21 and 255/50 R20 and 255/55 R19 depending on wheel size, and the 255/55 R19 111W XL below is the one most owners are replacing. XL is not optional here; it is what the car was type approved on. The Audi Q8 e-tron takes the same size.
Every fitment
| Generation | Trim | Wheel | Tyre size | Load index | Speed | Construction | Marking | Pressure |
|---|---|---|---|---|---|---|---|---|
| Current | 19in wheels | 19in | 255/55 R19 | 111 | W | XL | none | see plate |
| Current | 20in wheels | 20in | 255/50 R20 | 109 | V | XL | none | see plate |
| Current | 21in wheels | 21in | 255/45 R21 | 106 | W | XL | none | see plate |
Your own placard is the authority. You will find it on the on the driver's door jamb, on the B-pillar. Where it disagrees with this page, it wins. Match or exceed the size, load index, speed rating and construction class it gives, and use its pressure figure rather than anything printed on the tyre.
What changes on this car
The G9 is a large SUV, and its 19 inch 255/55 R19 has a load index of 111, which is 1090 kg per tyre. The 20 inch is rated 109 and the 21 inch 106.
Speed ratings do not follow wheel size on this car. The 19 and 21 inch sizes are W, but the 20 inch 255/50 R20 109V is V. All three are XL and share a 255 width.
No tyres listed against this fitment yet. Product specifications are published from each manufacturer's own data and that work is not finished for 255/55 R19. Match or exceed every figure in the table above and you cannot go far wrong.
Where these figures come from
- Michelin UK vehicle fitment tool (2025 Xpeng G9, version 'ev-313-230-kw', 255/55 R19 111W): https://www.michelin.co.uk/auto/browse-tyres/by-vehicle/xpeng/g9/g9-long-range/2025/ev-313-230-kw/255---55-R-19-111W
- Michelin UK vehicle fitment tool (2024 Xpeng G9, version 'ev-313-230-kw', 255/55 R19 111W): https://www.michelin.co.uk/auto/browse-tyres/by-vehicle/xpeng/g9/g9-long-range/2024/ev-313-230-kw/255---55-R-19-111W
- Michelin UK vehicle fitment tool (2026 Xpeng G9, version 'ev-351-258-kw', 255/50 R20 109V): https://www.michelin.co.uk/auto/browse-tyres/by-vehicle/xpeng/g9/g9-long-range/2026/ev-351-258-kw/255---50-R-20-109V
- Michelin UK vehicle fitment tool (2026 Xpeng G9, version 'ev-575-423-kw', 255/50 R20 109V): https://www.michelin.co.uk/auto/browse-tyres/by-vehicle/xpeng/g9/g9-performance/2026/ev-575-423-kw/255---50-R-20-109V
- Michelin UK vehicle fitment tool (2026 Xpeng G9, version 'ev-351-258-kw', 255/45 R21 106W): https://www.michelin.co.uk/auto/browse-tyres/by-vehicle/xpeng/g9/g9-long-range/2026/ev-351-258-kw/255---45-R-21-106W
- Michelin UK vehicle fitment tool (2026 Xpeng G9, version 'ev-575-423-kw', 255/45 R21 106W): https://www.michelin.co.uk/auto/browse-tyres/by-vehicle/xpeng/g9/g9-performance/2026/ev-575-423-kw/255---45-R-21-106W
Every figure here comes from one tyre maker's own fitment data, checked across different years or trims. That is a second look rather than a second opinion, so check the label on your door jamb before you buy.
Other cars on the same size
Common questions
- What size tyres does the Xpeng G9 take?
- It runs 255/45 R21 and 255/50 R20 and 255/55 R19. The exact fitment for your car is on On the driver's door jamb, on the B-pillar.
- Can I fit a cheaper tyre to a Xpeng G9?
- Only at 255/55 R19 111W XL or better. That is the figure to hold: a tyre below the load index, the speed rating or the construction class is not a cheaper one, it is the wrong one.