Front: 255/40ZR18 99Y XL
Rear: 275/40ZR18 99Y
Tire specs
- Load index
- 99
- Speed rating
- Y (186 mph)
- Load range
- Extra load (XL)
- Tread depth
- 10/32"
- Item #
- 2554018FAL28038585
O.E. size · 255/40R18 / 275/40R18
2023 BMW Z4 sDrive 30i w/ M-Brake
Front: 255/40R18Rear: 275/40R18
Front: 255/40R18Rear: 275/40R18
1 tire result
Factory-size matches for your vehicle2 front + 2 rearFront: 255/40ZR18 99Y XL
Rear: 275/40ZR18 99Y
The factory tire sizes for the 2023 BMW Z4 sDrive 30i w/ M-Brake are 255/40R18 in front and 275/40R18 in the rear.
This trim is also listed with 255/35R19 front and 275/35R19 rear. Check which one your vehicle has.
| Wheels | Size | Load index | Speed rating |
|---|---|---|---|
| Front | 255/40R18 | — | — |
| Rear | 275/40R18 | — | — |
| Front | 255/35R19 | — | — |
| Rear | 275/35R19 | — | — |
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.