2021 BMW 840i Tire Size & Pressure
The 2021 BMW 840i tire size depends on trim: the 2D Coupe takes 245/45R18 100H XL; the 2D Convertible takes 245/45R18 100H XL, per the factory service manual.
Factory-Spec Tire Size
Varies by trim
- 2D Coupe: 245/45R18 100H XL
- 2D Convertible: 245/45R18 100H XL
2D Coupe
Tire Specifications
| Position | Tire Size | Pressure | Load Index | Speed Rating |
|---|---|---|---|---|
| All | 245/45R18 100H XL | Door Placard | — | — |
| All | 275/40R18 103H XL | Door Placard | — | — |
| All | 245/40R19 98H XL | Door Placard | — | — |
| All | 245/35R20 95Y XL | Door Placard | — | — |
| All | 275/30R20 97Y XL | Door Placard | — | — |
2D Convertible
Tire Specifications
| Position | Tire Size | Pressure | Load Index | Speed Rating |
|---|---|---|---|---|
| All | 245/45R18 100H XL | Door Placard | — | — |
| All | 275/40R18 103H XL | Door Placard | — | — |
| All | 245/40R19 98H XL | Door Placard | — | — |
| All | 245/35R20 95Y XL | Door Placard | — | — |
| All | 275/30R20 97Y XL | Door Placard | — | — |
| All | 245/45R18 100H XL | Door Placard | — | — |
| All | 275/40R18 103H XL | Door Placard | — | — |
| All | 245/40R19 98H XL | Door Placard | — | — |
| All | 245/35R20 95Y XL | Door Placard | — | — |
| All | 275/30R20 97Y XL | Door Placard | — | — |
Where to Buy & Install Tires for Your 2021 BMW 840i
Worried about mounting? You don't need to haul tires in your trunk. Choose direct-to-installer delivery, mobile installation at your home, or front-door delivery:
⭐ Recommended · Ship to Local Shop
Tire Rack
Zero-hassle installation network across the US.
- ✓Free delivery to 10,000+ local shops (Firestone, Discount Tire & local mechanics)
- ✓Mobile installation vans available — they mount & balance in your driveway
- ✓Free 2-year road hazard warranty included on most eligible tires
- ✓Pre-set, guaranteed installation rates — no surprise shop markups
Direct Home Delivery
Amazon Automotive
Fast shipping for DIYers or bringing to your own mechanic.
- ✓Fast Prime shipping directly to your home or garage
- ✓Great selection of budget brands, trailer tires & spares
- ✓Ideal if you have a favorite local shop or home mounting tools
As an affiliate for Tire Rack and Amazon, we earn from qualifying purchases at no extra cost to you.
More 840i Specs & Repair Guides
🛢️ 2021 BMW 840i Oil Type & Capacity →🌧️ 2021 BMW 840i Wiper Blade Sizes →💡 2021 BMW 840i Light Bulb Sizes →📖 2021 BMW 840i Factory Service Manual →Powered by factory manual data from our partner network AllOEMManuals.com.
Frequently Asked Questions
What size tires does a 2021 BMW 840i take?
It depends on the trim: 2D Coupe uses 245/45R18 100H XL; 2D Convertible uses 245/45R18 100H XL.
What is the tire pressure for a 2021 BMW 840i?
Refer to the tire pressure placard on your vehicle's driver side door jamb for exact cold inflation pressures.
What is the bolt pattern on a 2021 BMW 840i?
Bolt pattern data is available in the factory service manual.
Other BMW 840i Years
Other BMW Models
128i135i135is1M228i228i Gran Coupe228i Gran Coupe xDrive228i xDrive230i230i xDrive318i318is318ti320i320i xDrive320xi323Ci323i323is325325Ci325e325es325i325is325iX325xi328Ci328d328d xDrive328i328i GT xDrive328i xDrive328is328xi330Ci330e330e xDrive330i330i GT xDrive330i xDrive330xi335d335i335i GT xDrive335i xDrive335is335xi340i340i GT xDrive340i xDrive428i428i Gran Coupe428i Gran Coupe xDrive428i xDrive430i430i Gran Coupe430i Gran Coupe xDrive430i xDrive435i435i Gran Coupe435i Gran Coupe xDrive435i xDrive440i440i Gran Coupe440i Gran Coupe xDrive440i xDrive524td525i525iT525xi528e528i528i xDrive528xi530e530e xDrive530i530i xDrive530xi533i535d535d xDrive535i535i GT535i GT xDrive535i xDrive535is535xi535xi GT540d xDrive540i540i xDrive545i550e xDrive550i550i GT550i GT xDrive550i xDrive550xi550xi GT633CSi635CSi640i640i Gran Coupe640i Gran Coupe xDrive640i GT xDrive640i xDrive645Ci650i650i Gran Coupe650i Gran Coupe xDrive650i xDrive650xi650xi Gran Coupe733i735i735iL740e xDrive740i740i xDrive740iL740Ld xDrive740Li740Li xDrive740Lxi745e xDrive745i745Li750e xDrive750i750i xDrive750iL750Li750Li xDrive750Lxi750xi760i760i xDrive760Li840Ci840i Gran Coupe840i Gran Coupe xDrive840i xDrive850Ci850CSi850iActiveHybrid 3ActiveHybrid 5ActiveHybrid 7AlpinaAlpina B6 Gran Coupe xDriveAlpina B7Alpina B7 xDriveAlpina B7LAlpina B7L xDriveAlpina B8 Gran Coupe xDriveAlpina XB7 xDrivei3i4i5i7i8iXL6L7M CoupeM RoadsterM2M235iM235i Gran Coupe xDriveM235i xDriveM240iM240i xDriveM3M340iM340i xDriveM4M440iM440i Gran CoupeM440i Gran Coupe xDriveM440i xDriveM5M550i xDriveM6M6 Gran CoupeM760i xDriveM8M8 Gran CoupeM850i Gran Coupe xDriveM850i xDriveX1X2X3X3 MX4X4 MX5X5 MX6X6 MX7XMZ3Z4Z8