BMW 8 Series tire and wheel sizes
The BMW 8 Series was approved in Switzerland between 2018 and 2023 with tires from 275/40R18 to 245/35R20 on 18″, 19″, 20″ wheels. The most common sizes are 245/40R19, 275/35R19, 245/35R20. Some versions use different sizes front and rear (staggered fitment).
Sizes differ by engine, trim and market. Confirm with the tire placard (usually on the driver's door jamb), the owner's manual or the vehicle registration papers before buying tires or wheels.
Most common sizes
BMW 8 Series (2018–2023) type G8C
346 approved versions, e.g. 840d xDrive, 840i xDrive, M850i xDrive.
| Tire size | Axle | Load / speed | Rim and offset | Versions |
|---|---|---|---|---|
| 245/45R18 | Front & rear | 100V | 8Jx18 ET30 | 71 |
| 245/45R18 | Front | 100Y | 8Jx18 ET30 | 71 |
| 275/40R18 | Rear | 99Y | 9Jx18 ET41 | 71 |
| 245/40R19 | Front & rear | 98H | 8Jx19 ET30 | 346 |
| 245/40R19 | Front | 98Y | 8Jx19 ET26 | 346 |
| 275/35R19 | Rear | 100Y | 9Jx19 ET41 | 346 |
| 245/35R20 | Front | 95Y | 8Jx20 ET26 | 346 |
| 275/30R20 | Rear | 97Y | 9Jx20 ET41 | 346 |
How to read this table
Rim and offset uses the European notation: 7Jx17 ET45 is a 7-inch wide, 17-inch diameter wheel with a 45 mm offset. "Versions" is how many approved versions list that size — a rough guide to how common it is. Load / speed is the most frequent service description (for example 91V) among them; your car may require a higher one.
Showing 346 of 349 approvals: rare special versions are left out to keep the page readable. Records were read from the German-language text and checked against the French text; 100 % matched exactly.
Source: Swiss Federal Roads Office (FEDRO/ASTRA), open government data. Original data (downloaded 2026-09-29). Data processed by us; errors in processing are ours, not the publisher's.