The 2024 BMW 840i sits in BMW’s modern grand touring tradition, blending long-distance comfort with the low, wide stance and crisp road manners expected from an 8 Series. Tire fitment on this car is centered on modern metric radial sizing, with distinct front and rear sizes and a choice between 19-inch and 20-inch wheel setups. That makes the first decision less about vintage-style construction and more about matching the correct axle position, rim diameter, and overall setup. Available choices focus on blackwall performance-oriented radials from BFGoodrich and Nitto across several series. For everyday road use, replacement planning starts with confirming whether the car carries the 19-inch or 20-inch package.
Which Tire Size Is Right for The 2024 BMW 840i
The 2024 BMW 840i uses four primary tire sizes because fitment is split by front and rear axle and by 19-inch or 20-inch wheel package. Every size is a radial, so the key step is confirming both your wheel diameter and whether you are selecting for the front or rear before comparing brands, series, and other product details.
245/35R20 is a metric radial size in which 245 identifies the nominal section width in millimeters, 35 is the aspect ratio, R denotes radial construction, and 20 is the rim diameter in inches. On the 2024 BMW 840i, this size serves the front position on the 20-inch setup and maintains the low-profile look expected from the larger wheel package. Available choices include BFGoodrich and Nitto blackwall radials across g-Force Sport Comp 2, g-Force Comp 2 AS, g-Force Phenom T/A, and NT555 G2 lines. This size is the right place to start when replacing front tires on an 840i already equipped with 20-inch wheels.
245/40R19 is a metric radial size that combines a 245-millimeter nominal section width with a 40-series profile on a 19-inch rim. For the 2024 BMW 840i, it is the front tire size used with the 19-inch wheel package and keeps the front fitment matched to the corresponding rear 19-inch size. BFGoodrich offers this size in several blackwall g-Force series, including Sport Comp 2, Comp 2 AS, and Phenom T/A. It is the correct front-size direction when the car remains on its 19-inch wheels and you want to compare tire character within the same fitment.
275/30R20 is a metric radial size with a wider 275-millimeter nominal section width, a 30-series profile, and a 20-inch rim diameter. On the 2024 BMW 840i, this size is used at the rear with the 20-inch wheel setup, giving the car the staggered front-to-rear fitment common to modern performance grand tourers. Available product choice in this size is focused on a blackwall Nitto NT555 G2 radial. This is the size to verify when replacing rear tires on an 840i carrying the 20-inch package, especially if the car has had wheel changes or aftermarket fitment work.
275/35R19 is a metric radial size that uses a 275-millimeter nominal section width, a 35-series profile, and a 19-inch rim diameter. For the 2024 BMW 840i, it fills the rear position on the 19-inch staggered setup and should be matched with the corresponding 245/40R19 front size. Product selection includes blackwall radials from BFGoodrich and Nitto, with choices across g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and NT555 G2 series. This size matters when the car is on 19-inch rear wheels and you want to compare rear-tire options without changing the overall wheel package.
Fitment on the 2024 BMW 840i stays consistent in pattern across the covered sub-models, with front sizes separate from rear sizes and wheel diameter determining which pair applies. Checking both the exact sub-model position and whether the car has 19-inch or 20-inch wheels keeps replacement selection on track.
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2024 BMW 840i Convertible Front
The 2024 BMW 840i Convertible Front uses the same front-size pattern as the coupe, with a choice between a 245/35R20 radial on 20-inch wheels or a 245/40R19 radial on 19-inch wheels. That means front tire selection starts with wheel diameter confirmation, then moves to comparing blackwall performance-oriented radial options within the correct size.
The 2024 BMW 840i Convertible Rear follows the staggered rear fitment used across this model, taking either 275/30R20 or 275/35R19 depending on wheel package. Rear replacement should stay tied to the existing front-and-rear setup so the axle-specific sizing remains consistent with the car’s current wheel diameter.
The 2024 BMW 840i Coupe Front uses the same two front tire sizes seen on the convertible: 245/35R20 for the 20-inch setup and 245/40R19 for the 19-inch setup. Choosing between available front tires is mainly a matter of confirming rim diameter first, then selecting the radial series that best fits the car’s intended road use.
The 2024 BMW 840i Coupe Rear uses the corresponding staggered rear sizes, with 275/30R20 paired to the 20-inch package and 275/35R19 paired to the 19-inch package. Rear fitment should be matched carefully to the wheel size already on the car, especially when replacing only one axle or dealing with aftermarket wheels.
The tire sizes listed on this page assume factory-standard vehicle configuration. The following modifications may affect tire fitment and are not reflected in this guide:
Suspension changes (lowering, lift kits, spring replacements)
Body alterations (fender modifications, custom bodywork)
If your vehicle has been modified from factory specifications, verify tire clearance before purchase.
Best 2024 BMW 840i Tires for Sale
Available 2024 BMW 840i tire choices are all blackwall radials, with BFGoodrich and Nitto covering the front and rear fitments across several g-Force series and the NT555 G2. The product grid is most useful for comparing the correct axle-specific size, wheel diameter, tire series, and rim-width compatibility where stated.
Common 2024 BMW 840i tire questions usually come down to staggered sizing, 19-inch versus 20-inch wheel fitment, front and rear matching, and how to compare the available radial tire series for road use.
Tire Size & Fitment
What tire size fits a 2024 BMW 840i?
The 2024 BMW 840i uses a staggered radial setup rather than one universal tire size. Front fitment is either 245/40R19 or 245/35R20, while rear fitment is either 275/35R19 or 275/30R20, depending on whether the car has the 19-inch or 20-inch wheel package.
That means the first step is confirming both wheel diameter and axle position before selecting a tire. An 840i with 19-inch wheels needs the 19-inch front and rear pair, and an 840i with 20-inch wheels needs the 20-inch pair. If the car has been modified with aftermarket wheels, verify the actual wheel size on the car before replacement.
What size rim does a 2024 BMW 840i use?
The 2024 BMW 840i uses either 19-inch or 20-inch rims, depending on the wheel package installed on the car. The 19-inch setup pairs 245/40R19 front tires with 275/35R19 rear tires, while the 20-inch setup pairs 245/35R20 front tires with 275/30R20 rear tires.
Rim diameter matters because these sizes are not interchangeable across the two wheel packages. Front and rear sizing is also different, so checking only one tire is not enough on a staggered car. Looking at the sidewall size on the existing tires and confirming the wheel itself is the safest way to avoid ordering the wrong diameter.
Why does the 2024 BMW 840i have more than one tire size?
More than one tire size applies to the 2024 BMW 840i because the car uses staggered fitment, with narrower tires in front and wider tires in back, and it can also appear with either a 19-inch or 20-inch wheel package. That creates two matched front-and-rear size combinations.
The practical point is that tire selection depends on the complete setup already on the car, not just the model name. Front and rear positions must be matched to the correct wheel diameter, and replacing one axle without checking the other can create confusion. On a car with wheel changes, confirm the current sizes rather than assuming the original package.
Choosing the Right Tire
What should I consider when choosing a 2024 BMW 840i tire?
Start with the basics that matter most on this car: front versus rear position, 19-inch versus 20-inch rim diameter, and the exact radial size already on the vehicle. The 2024 BMW 840i does not use one all-around fitment, so the correct tire has to match the car’s staggered setup before any brand or series comparison begins.
After size is confirmed, compare tire series, sidewall style, and wheel compatibility details where they are stated. Some sizes have broader product choice than others, especially at the front and in the 19-inch rear fitment. Keeping both axle position and wheel package in view helps narrow the field to the tires that actually suit the car’s present setup.
What brands offer tires for the 2024 BMW 840i?
Tires for the 2024 BMW 840i are available from BFGoodrich and Nitto in the sizes covered here. BFGoodrich appears across several front and rear applications, while Nitto is available in selected front and rear sizes, including the 275/30R20 rear fitment and some of the other staggered positions.
Brand choice should come after confirming the exact size on the car. Some sizes offer multiple series from one brand, while others have a narrower selection, so the available comparison set changes with wheel package and axle position. Once the correct fitment is identified, compare series character, rim-width details where given, and intended road use.
What tire series are available for the 2024 BMW 840i?
The 2024 BMW 840i is covered by several radial tire series, including BFGoodrich g-Force Sport Comp 2, g-Force Comp 2 AS, g-Force Phenom T/A, and Nitto NT555 G2. Not every series appears in every size, so availability depends on whether you are shopping for a front or rear tire and whether the car uses 19-inch or 20-inch wheels.
Series comparison is most useful once the correct size is locked in. A front 245 size may offer a wider menu than a rear 275 size in a different rim diameter, so one axle can present more choice than the other. For a balanced replacement plan, keep the car’s full staggered setup in mind rather than choosing by series name alone.
Restoration & Appearance
Does correct tire fitment matter for a 2024 BMW 840i restoration or preservation-minded replacement?
Yes. Even though the 2024 BMW 840i is a modern grand touring car rather than a vintage restoration candidate, preserving the intended look and stance still depends on using the proper front-and-rear sizes for the wheel package on the car. The correct staggered relationship is part of the vehicle’s visual balance.
For a preservation-minded replacement, avoid treating the car like it uses one universal size at all four corners. Confirm whether it carries the 19-inch or 20-inch setup, then replace tires within that matched pattern. On a vehicle kept especially close to original presentation, factory literature or marque-specific documentation can help confirm the wheel package before changing anything.
Which sidewall style suits a period-conscious or original-look 2024 BMW 840i?
The available tires for the 2024 BMW 840i use a blackwall sidewall style, which suits the clean, modern appearance expected on a contemporary 8 Series. Because the fitments here are low-profile radials on 19-inch or 20-inch rims, blackwall presentation aligns naturally with the car’s current grand touring and performance-oriented character.
Appearance choice on this model is less about whitewalls or specialty sidewall treatments and more about keeping the correct staggered proportions and wheel diameter. A blackwall tire in the right front or rear size will usually preserve the intended look more effectively than an incorrect profile. Confirm axle position and wheel package first, then compare the available series.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2024 BMW 840i?
Yes. Wheel changes, altered offsets, suspension lowering, spacer use, or other modifications can affect tire fitment on a 2024 BMW 840i even when the tire size looks close to stock. Because this car uses staggered front and rear sizing, small setup changes can alter clearance or wheel compatibility at one axle without affecting the other.
That is why the actual wheel diameter and current tire size on the car should be checked before replacement. A modified 840i may no longer match its original wheel package, so the safest approach is to confirm front and rear sizes separately and inspect clearance around fenders, suspension components, and steering travel before committing to a replacement plan.
What should I inspect before driving a 2024 BMW 840i on new tires?
Before putting a 2024 BMW 840i back into regular road use on new tires, inspect the wheel condition, confirm that the front and rear sizes are mounted in the proper positions, and make sure inflation is set correctly for the vehicle’s requirements. A quick visual check for mounting damage, air loss, or sidewall irregularities is also worthwhile.
Because the 840i uses staggered fitment, it also helps to verify that the correct 19-inch or 20-inch pair is on the car and that nothing was mixed across wheel packages. After installation, watch for vibration, rubbing, or unusual steering feel during the first miles. Any sign of interference should be checked before normal driving continues.
What should I check before a longer drive in a 2024 BMW 840i?
Ahead of a longer drive, check tire pressure, tread condition, and any signs of cracking, cuts, punctures, bulges, or uneven wear on the 2024 BMW 840i. It also makes sense to confirm that the car still has the correct front and rear sizes for its wheel package and that no slow air loss has developed.
Long-distance use puts more importance on a stable, correctly matched setup, especially on a staggered car. A final walkaround should include a look at wheel damage and clearance around the tires if the car has aftermarket wheels or suspension changes. Catching a mismatch or condition issue early is easier than dealing with it once the trip is underway.
