The 2017 BMW 740i sits in the modern full-size luxury sport sedan category, blending long-wheelbase comfort, strong highway composure, and the kind of wheel-and-tire presence that plays a major role in how the car looks and feels on the road. Tire fitment on this exact model is entirely radial, but the real choice is not one simple size across every setup. The 740i uses several metric radial sizes across 18-, 19-, and 20-inch wheel packages, including staggered front and rear combinations. That opens the door to different brands, sidewall treatments, and tire series, while still making wheel diameter and exact front-to-rear fitment the first things to confirm.
Which Tire Size Is Right for The 2017 BMW 740i
The 2017 BMW 740i uses five primary tire sizes, and the correct one depends on the exact wheel package and whether the car is using a square or staggered setup. Because this model spans 18-, 19-, and 20-inch rims, the first step is confirming wheel diameter, then identifying whether the car uses the same size at all four corners or separate front and rear sizes.
245/45R19 is a metric radial size with a 245-millimeter section width, a 45-series profile, and a 19-inch rim diameter. On the 2017 BMW 740i, this size is used in a modern radial construction and can appear as part of a square setup or as the front size in a staggered 19-inch arrangement. Available choices include BFGoodrich and Nitto options in blackwall form, with series such as g-Force Comp 2 AS, g-Force Phenom T/A, and NT555 G2. This size is the one to evaluate when the car carries 19-inch front fitment and you want to compare tire character within that wheel package.
245/50R18 is a metric radial size that combines a 245-millimeter width with a 50-series profile on an 18-inch rim. For the 2017 BMW 740i, it represents the 18-inch fitment and keeps the selection focused on radial construction rather than a bias-ply versus radial decision. Product choices in this size include Pro-Trac Street Pro III versions with raised white letter and redline sidewall treatments, giving the buyer a distinct appearance decision beyond simple sizing. This is the size to consider when the car is equipped with 18-inch wheels and the goal is matching the wheel diameter while choosing the sidewall presentation that suits the vehicle best.
245/40R20 is a metric radial with a 245-millimeter section width, a lower 40-series profile, and a 20-inch rim diameter. On the 2017 BMW 740i, this size serves the front position in the staggered 20-inch arrangement, so it should not be treated as a universal all-around size for every wheel setup. Choices include blackwall performance-oriented offerings from BFGoodrich and Nitto, along with Pro-Trac Street Pro III options in raised white letter and redline styles. This size deserves close attention when the car wears 20-inch front wheels and the buyer wants to balance the proper front fitment with the preferred look and tire series.
275/35R20 is a metric radial size with a wider 275-millimeter section width, a 35-series profile, and a 20-inch rim diameter. For the 2017 BMW 740i, it is used on the rear in the staggered 20-inch configuration, making it a companion rear fitment rather than a stand-alone choice. Available products include blackwall selections from BFGoodrich and Nitto, plus Pro-Trac Street Pro III versions with raised white letter and redline sidewalls. This size matters most when confirming that a 20-inch staggered setup remains matched front to rear and that the rear wheel width and tire style support the way the car is actually configured.
275/40R19 is a metric radial size that pairs a 275-millimeter width with a 40-series profile on a 19-inch rim. On the 2017 BMW 740i, this size is used at the rear in the staggered 19-inch arrangement, so it is part of a front-and-rear package rather than an across-the-board fitment. BFGoodrich and Nitto both appear in this size, with blackwall options across series such as g-Force Sport Comp 2, g-Force Comp 2 AS, g-Force Phenom T/A, and NT555 G2. This is the rear size to review when the car has 19-inch staggered wheels and the goal is maintaining the proper rear fitment while comparing series and load-related specifications.
Sub-model fitment on the 2017 BMW 740i varies by wheel package and by front-versus-rear position. Checking the exact sub-model matters here because the car can use either a square setup or staggered sizing, and the wheel diameter changes with it.
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2017 BMW 740i Base
The 2017 BMW 740i Base uses a square fitment with either an 18-inch or 19-inch radial tire size, depending on the wheel setup on the car. Tire selection starts with confirming the actual wheel diameter, then comparing available sidewall treatments, brands, and tire series within that size.
The 2017 BMW 740i Base Front uses the narrower front tire sizes that pair with staggered 19-inch or 20-inch wheel packages. That makes front wheel diameter the key checkpoint before choosing among blackwall, raised white letter, redline, or brand-specific radial options.
The 2017 BMW 740i Base Rear uses the wider rear tire sizes for the staggered 19-inch or 20-inch setups. Rear tire selection should stay tied to the matching front fitment so the overall package remains appropriate for the wheels, clearance, and intended appearance of the car.
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 2017 BMW 740i Tires for Sale
Available 2017 BMW 740i tire choices span BFGoodrich, Nitto, and Pro-Trac across several radial sizes. Depending on the wheel setup, the product grid includes blackwall, raised white letter, and redline options, along with series such as g-Force Comp 2 AS, g-Force Phenom T/A, NT555 G2, and Street Pro III.
Owners of a 2017 BMW 740i usually need to sort out wheel diameter, square versus staggered sizing, and the differences between available radial tire styles. The questions below focus on exact fitment, tire selection, appearance choices, and the checks worth making before road use.
Tire Size & Fitment
What tire size fits a 2017 BMW 740i?
A 2017 BMW 740i can use 245/50R18, 245/45R19, 245/40R20, 275/40R19, and 275/35R20, all in radial construction. The correct size depends on the wheel package and whether the car uses the same size at all four corners or a staggered front-and-rear arrangement.
Square setups use the narrower size at every corner, while staggered setups pair a front size with a wider rear size. The most important step is checking the actual wheels on the car before ordering tires, especially if it has been changed from its original wheel package or fitted with aftermarket wheels.
What size rim does a 2017 BMW 740i use?
The 2017 BMW 740i uses 18-inch, 19-inch, and 20-inch rim diameters depending on the configuration. Those rim diameters correspond to the five primary tire sizes used on this model, so tire choice starts with matching the tire to the wheel diameter already on the car.
Because this BMW spans three rim diameters, guessing from appearance alone can lead to the wrong size. A quick check of the tire sidewall or the wheel itself will confirm whether the car is on an 18-, 19-, or 20-inch setup, and that makes it much easier to narrow the correct front and rear fitment.
Why does the 2017 BMW 740i have more than one tire size?
The 2017 BMW 740i has more than one tire size because it was fitted with multiple wheel packages, including square and staggered arrangements. Some versions use one size all around, while others use a narrower front tire and a wider rear tire on either 19-inch or 20-inch rims.
That means the right tire is tied to the exact setup on the car, not just the model name. Checking both the front and rear sidewalls is especially important on staggered cars, since ordering four identical tires for a front-and-rear split setup can create obvious fitment problems.
Choosing the Right Tire
What should I consider when choosing a 2017 BMW 740i tire?
Start with the exact tire size and wheel diameter, then confirm whether the 2017 BMW 740i uses a square or staggered setup. After that, compare the available radial tire series, sidewall style, rim-width compatibility where stated, and any load-related specifications that may matter for the way the car is used.
A buyer focused on a clean modern presentation may lean toward blackwall options, while someone after a more distinctive look may prefer raised white letter or redline choices in the sizes where those are offered. The best comparison is always within the correct size rather than across different wheel packages.
What sidewall styles are available for 2017 BMW 740i tires?
Sidewall choices for the 2017 BMW 740i include blackwall, raised white letter, and redline, depending on the tire size. Blackwall options appear across several 19-inch and 20-inch sizes, while raised white letter and redline treatments are available in certain Pro-Trac Street Pro III applications.
The sidewall decision is partly visual and partly size-dependent, since not every style appears in every fitment. Once the correct wheel diameter and front-or-rear size are confirmed, the sidewall treatment becomes a practical way to tailor the car’s look without changing the underlying tire size.
What brands offer tires for the 2017 BMW 740i?
Tires for the 2017 BMW 740i are available from BFGoodrich, Nitto, and Pro-Trac. Depending on size, the selection includes BFGoodrich g-Force series options, Nitto NT555 G2, and Pro-Trac Street Pro III, all in radial construction for the wheel packages used on this model.
Brand choice should come after fitment is settled, not before. Some sizes have broader brand coverage than others, and some appearance options such as raised white letter or redline are tied to a specific series, so the smartest comparison is by correct size first and then by the brand and series mix within that size.
Restoration & Appearance
Which tire should I choose for a period-style 2017 BMW 740i?
A period-style choice for a 2017 BMW 740i starts with staying in the proper wheel diameter and the correct front or rear size for the car’s setup. From there, the visual direction comes from the tire series and sidewall treatment, with blackwall choices offering a more restrained look and redline or raised white letter creating a more custom presentation.
Because this is a modern luxury sedan, appearance changes can shift the car away from its original character even when the size is correct. Owners trying to preserve a stock-like look usually begin by matching the existing wheel package and avoiding a front-to-rear mismatch in a staggered setup.
How does tire construction affect the appearance of a restored 2017 BMW 740i?
On a 2017 BMW 740i, tire construction does not create a bias-ply versus radial decision because the primary fitments are radial. The visual difference comes more from sidewall treatment, tread style, and the way a particular tire series complements the car’s 18-, 19-, or 20-inch wheel package.
That makes appearance selection more about presentation than construction change. A blackwall radial usually keeps the look more understated, while raised white letter or redline versions can make the car read as more customized, so the tire should match the owner’s goals before the car ever goes back on the road.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2017 BMW 740i?
Yes, modifications can affect tire fitment on a 2017 BMW 740i, especially when wheel diameter, wheel width, offset, or suspension height has been changed. A car that started with one of the factory-style size combinations may no longer have the same clearance picture once aftermarket parts are involved.
Any time the 740i has non-stock wheels, lowering components, or other suspension changes, it is smart to verify both front and rear clearance before choosing tires. Steering lock clearance, fender room, and the relationship between the front and rear sizes all matter more on a staggered setup than they do on a simple square arrangement.
What should I inspect before driving a 2017 BMW 740i on new tires?
Before driving a 2017 BMW 740i on new tires, inspect the wheel size, confirm the front and rear sizes match the car’s setup, and check that the tires are mounted in the correct positions. It is also worth looking over valve stems, wheel condition, and inflation pressure before putting the car back into regular use.
A short initial road test can reveal rubbing, vibration, or an unexpected steering feel before a longer trip. After the first miles, recheck pressure and look again for any sign of contact at full steering lock or under suspension movement, particularly if the car uses 20-inch staggered tires or modified wheels.
What should I check before a longer drive in a 2017 BMW 740i?
Before a longer drive in a 2017 BMW 740i, check inflation pressure, tread condition, and the sidewalls for cuts, bulges, or cracking. It is also important to confirm that the car’s tire sizes still match its wheel setup, since a front-and-rear staggered arrangement can be thrown off by an incorrect replacement.
Low-use cars deserve extra attention because tire age and storage conditions can matter even when tread still looks good. A quick walkaround, pressure check, and inspection for uneven wear can catch problems early and help confirm that the front and rear tires are working as a proper matched package for the trip ahead.
