2020 BMW X5: the quick answer
The 2020 BMW X5 ships with 265/50R19 tires on the base trim — that's an overall diameter of 29.4″. The 265 mm width and 50% sidewall ratio give you 132.5 mm of sidewall cushion between the rim and the road.
Tire fitment
2020 BMW X5 tire size
The 2020 BMW X5 base tire size is 265/50R19 — 265 mm wide with a 50% aspect ratio on 19″ rims. 4 OEM sizes are available across trims.
2020 BMW X5
265/50R1929.4″ overall diameter · 132.5 mm sidewall · ~685 rev/mi
| Trim | Tire size | Rim | Diameter | vs Base |
|---|---|---|---|---|
| xDrive40i (2019-2023 std) ★ | 265/50R19 | 9×19″ | 29.4″ (747.6 mm) | — |
| xDrive40i (2024+ std) / M50i / M60i | 275/45R20 | 9×20″ | 29.7″ (755.5 mm) | +1.06% |
| optional (front) | 275/40R21 | 9.5×21″ | 29.7″ (753.4 mm) | +0.78% |
| optional (rear) | 315/35R21 | 10.5×21″ | 29.7″ (753.9 mm) | +0.84% |
Staggered: 275/40R21 front, 315/35R21 rear.
Before you buy tires
Match the load index and speed rating from your door-jamb placard — not just the size. If you're switching sizes, keep the overall diameter within ~3% to avoid speedometer error and potential ABS/traction-control issues.
Factory fitment for the 2020 BMW X5; verify against your door-jamb placard or owner's manual.
Sources & verification
Source links and page assumptions reviewed .
- Tire Rack: how to read tire size on the sidewall — Industry-standard explanation of tire size markings, load index, and speed rating.
- NHTSA: TireWise tire safety guidance — Official U.S. guidance on tire size, the Tire and Loading Information placard, load ratings, and maintenance.
FAQ
What tire size does the 2020 BMW X5 use?
The base 2020 BMW X5 uses 265/50R19 tires — 265 mm wide, 50% aspect ratio, on 19-inch rims. The overall diameter is 29.4″ (747.6 mm). Higher trims use different sizes — see the table above. Confirm against your door-jamb placard.
Can I use a different tire size on my 2020 X5?
Yes, within limits. Keep the overall diameter within about 3% of 29.4″ to avoid speedometer error and clearance issues. A wider tire may improve grip, but match the load and speed ratings your X5 requires.
What is the overall diameter of 265/50R19 tires?
265/50R19 tires have an overall diameter of 29.4″ (747.6 mm), with a 132.5 mm sidewall height. That's about 685 revolutions per mile.
The 2020 BMW X5 tire sizes shown are OEM factory fitments. Confirm your exact tire size, load rating, and speed rating against the door-jamb placard or owner's manual before buying tires.