Front: 255/40R21 102W XL BW
Rear: 265/40R21 105Y XL BW
Tire specs
- Load index
- 102
- Speed rating
- W (168 mph)
- Load range
- Extra load (XL)
- Tread depth
- 9/32"
- Item #
- 2554021PIR3990300
2020 BMW X4 M — 255/40R21
2020 BMW X4 M
- Factory size
- 255/40R21 / 265/40R21
- Load / speed
- 102Y / 105Y
Front: 255/40R21Rear: 265/40R21
2 front + 2 rear
Front: 255/40R21Rear: 265/40R21
13 tire results
Factory-size matches for your vehicle2 front + 2 rearWhat size tires does the 2020 BMW X4 M take?
The factory tire sizes for the 2020 BMW X4 M are 255/40R21 in front and 265/40R21 in the rear.
The catalog lists the front at load index 102, speed rating Y (up to 186 mph) and the rear at load index 105, speed rating Y (up to 186 mph).
This trim is also listed with 255/45R20 front and 265/45R20 rear. Check which one your vehicle has.
| Wheels | Size | Load index | Speed rating |
|---|---|---|---|
| Front | 255/40R21 | 102 | Y |
| Rear | 265/40R21 | 105 | Y |
| Front | 255/45R20 | 105 | Y |
| Rear | 265/45R20 | 108 | Y |
Confirm the size printed on the sidewall of your current tire or on the tire placard in the driver's door jamb before you buy. Replacement tires should meet or exceed the vehicle's load index and speed rating.