BMW iX3 tyre sizes
Factory tyre sizes for the BMW iX3 as listed in the maker's official documents. Each of the 12 rows links its source document.
Some rows come from an official document of another country (DE). Your market's version may differ; compare with the door label.
iX3 NA5 (Neue Klasse)2026
| Version | hp | Front | Rear | Wheel | Source |
|---|---|---|---|---|---|
| 40 - standard | 320 | 255/45R20 | 255/45R20 | 8.5Jx20 | Document ↗DE |
| 40 - optional | 320 | 255/40R21 | 255/40R21 | 9Jx21 | Document ↗DE |
| 40 - optional (M Sportpaket) | 320 | 255/40R21 | 275/40R21 | 9Jx21 / 9.5Jx21 | Document ↗DE |
| 40 - optional (M Sportpaket) | 320 | 255/35R22 | 275/35R22 | 9Jx22 / 9.5Jx22 | Document ↗DE |
| 40 xDrive - standard | 374 | 255/45R20 | 255/45R20 | 8.5Jx20 | Document ↗DE |
| 40 xDrive - optional | 374 | 255/40R21 | 255/40R21 | 9Jx21 | Document ↗DE |
| 40 xDrive - optional (M Sportpaket) | 374 | 255/40R21 | 275/40R21 | 9Jx21 / 9.5Jx21 | Document ↗DE |
| 40 xDrive - optional (M Sportpaket) | 374 | 255/35R22 | 275/35R22 | 9Jx22 / 9.5Jx22 | Document ↗DE |
| 50 xDrive - standard | 469 | 255/45R20 | 255/45R20 | 8.5Jx20 | Document ↗DE |
| 50 xDrive - optional | 469 | 255/40R21 | 255/40R21 | 9Jx21 | Document ↗DE |
| 50 xDrive - optional (M Sportpaket) | 469 | 255/40R21 | 275/40R21 | 9Jx21 / 9.5Jx21 | Document ↗DE |
| 50 xDrive - optional (M Sportpaket) | 469 | 255/35R22 | 275/35R22 | 9Jx22 / 9.5Jx22 | Document ↗DE |
Sizes that can replace 255/40R21
This is a calculation, not a factory approval. The list shows sizes whose overall diameter is within ±3%. Check your door label, certificate of conformity (CoC) or tyre shop before fitting.
255/45R20+0.0%255/35R22−0.0%
255/30R23−0.0%
285/40R20−0.2%285/35R21−0.6%235/50R20+0.8%265/30R23+0.8%
245/30R23−0.8%
265/35R22+0.9%245/35R22−1.0%
FAQ
What tyre size does the BMW iX3 use?
Factory tyre sizes listed in official documents for the BMW iX3: 255/45R20, 255/40R21, 275/40R21, 255/35R22, 275/35R22. The most common size is 255/40R21.
What wheel size does the BMW iX3 have?
The BMW iX3 was sold with 20, 21, 22 inch wheels in the sourced versions. The number after R on your tyre's sidewall tells you which one you have.
Can I fit a different tyre size on the BMW iX3?
A size whose overall diameter is within 3% of the factory size, with no lower load index or speed rating, usually fits. For final approval check the door label, CoC and your tyre shop.