2021 BMW 840i (18 Inch Option) — 245/45R18
O.E. size · 245/45R18 / 275/40R18
2021 BMW 840i (18 Inch Option)
Front: 245/45R18Rear: 275/40R18
2 front + 2 rear
Front: 245/45R18Rear: 275/40R18
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Factory-size matches for your vehicle2 front + 2 rearNo tires are priced for this selected size and service class.
Choose yours for its prices, shelf stock and open times.
What size tires does the 2021 BMW 840i (18 Inch Option) take?
The factory tire sizes for the 2021 BMW 840i (18 Inch Option) are 245/45R18 in front and 275/40R18 in the rear.
The catalog lists the front at load index 100, speed rating H (up to 130 mph) and the rear at load index 103, speed rating H (up to 130 mph).
| Wheels | Size | Load index | Speed rating |
|---|---|---|---|
| Front | 245/45R18 | 100 | H |
| Rear | 275/40R18 | 103 | H |
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.