The 2017 BMW 740i xDrive sits in BMW’s modern flagship luxury-sedan tradition, blending long-wheelbase comfort, contemporary technology, and all-weather confidence with the poised road manners expected from a 7 Series. Tire choice on this model is more about confirming the exact wheel and axle setup than choosing between old and new constructions, because every primary fitment is radial. Depending on configuration, the 740i xDrive uses 18-, 19-, or 20-inch metric radial sizes, including staggered front and rear combinations on some setups. That makes wheel diameter, front-to-rear sizing, and sidewall style especially important for owners balancing factory-style proportions, appearance, and everyday road use.
Which Tire Size Is Right for The 2017 BMW 740i xDrive
The 2017 BMW 740i xDrive uses five primary tire sizes, and the correct choice depends first on confirming the exact wheel package and whether the car uses the same size at all four corners or a staggered front and rear setup. Because these fitments span 18-, 19-, and 20-inch rims, wheel diameter is the first detail to verify before comparing brands, sidewall styles, or tire series.
In 245/45R19, 245 identifies the nominal section width in millimeters, 45 is the aspect ratio, R denotes radial construction, and 19 is the rim diameter in inches. This size is a primary fitment for the 2017 BMW 740i xDrive and appears on a 19-inch wheel setup, including front use in a staggered arrangement. Available choices include blackwall performance-oriented options from BFGoodrich and Nitto, with tire 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 is equipped with 19-inch front fitment rather than the 18-inch or 20-inch alternatives.
The 245/50R18 size uses a 245-millimeter nominal section width, a 50-series profile, radial construction, and an 18-inch rim diameter. On the 2017 BMW 740i xDrive, this is one of the square-fitment sizes, so it becomes relevant when the car is running 18-inch wheels rather than the 19-inch or 20-inch packages. Product choices in this size include Pro-Trac Street Pro III variations with RWL and redline sidewall treatments, giving the buyer a more appearance-driven decision within the correct dimensions. It is a useful fitment to confirm for owners who want to match an 18-inch wheel setup with a distinct sidewall presentation.
A 245/40R20 tire has a 245-millimeter nominal width, a 40-series aspect ratio, radial construction, and a 20-inch rim diameter. This size serves as the front fitment in a 20-inch staggered arrangement on the 2017 BMW 740i xDrive, so it should not be treated as a universal four-corner size without checking the car’s actual setup. Choices include blackwall offerings from BFGoodrich and Nitto, along with Pro-Trac Street Pro III versions in RWL and redline. This is the right size to compare when the vehicle carries 20-inch front wheels and requires a matched rear size rather than a square package.
The 275/35R20 code indicates a wider 275-millimeter nominal section width, a 35-series profile, radial construction, and a 20-inch rim diameter. On the 2017 BMW 740i xDrive, this size belongs to the rear of a 20-inch staggered setup and works with the narrower 245/40R20 front size. Available options include blackwall tires from BFGoodrich and Nitto, plus Pro-Trac Street Pro III in RWL and redline sidewall styles for buyers who want a more distinctive look. This rear size matters most when preserving the intended staggered relationship and confirming that the car still has the correct 20-inch rear wheels.
In 275/40R19, the 275 indicates the nominal width in millimeters, 40 is the aspect ratio, R marks radial construction, and 19 is the rim diameter in inches. This size is used at the rear on a 19-inch staggered setup for the 2017 BMW 740i xDrive, paired with a narrower 245/45R19 front tire. Product selection centers on blackwall options from BFGoodrich and Nitto, with series including g-Force Sport Comp 2, g-Force Comp 2 AS, g-Force Phenom T/A, and NT555 G2. It is the rear fitment to verify when the car runs 19-inch staggered wheels rather than an 18-inch square arrangement.
Sub-model fitment on the 2017 BMW 740i xDrive is tied directly to wheel position and wheel package rather than a single universal size. Checking whether the car is identified as Base, Base Front, or Base Rear helps separate square 18-inch fitment from staggered 19-inch and 20-inch front-to-rear combinations.
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2017 BMW 740i xDrive Base
The 2017 BMW 740i xDrive Base uses square-fitment tire sizing, with one size associated with an 18-inch setup and another with a 19-inch setup. Tire selection here starts with confirming wheel diameter, then comparing available radial choices and sidewall treatments within the correct size.
The 2017 BMW 740i xDrive Base Front identifies the front-axle sizes used in staggered configurations, covering both 19-inch and 20-inch front wheel fitments. That means the buyer should match the front size to the corresponding rear setup instead of selecting a tire as though all four corners use the same dimensions.
The 2017 BMW 740i xDrive Base Rear carries the wider rear tire sizes used with staggered 19-inch and 20-inch wheel packages. Choosing for this position means preserving the intended front-to-rear sizing relationship and confirming the actual rear wheel diameter before comparing brands or series.
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 xDrive Tires for Sale
Available 2017 BMW 740i xDrive tires span BFGoodrich, Nitto, and Pro-Trac, with choices that vary by wheel package, tire series, and sidewall style. Depending on size, buyers can compare blackwall performance-oriented radials or select RWL and redline treatments in Pro-Trac Street Pro III.
Questions about 2017 BMW 740i xDrive tires usually come down to wheel diameter, staggered versus square fitment, and how the available radial choices differ by size, brand, and sidewall style. The topics below focus on those practical decisions before the car goes back on the road.
Tire Size & Fitment
What tire size fits a 2017 BMW 740i xDrive?
The 2017 BMW 740i xDrive uses several primary tire sizes: 245/50R18, 245/45R19, 245/40R20, 275/40R19, and 275/35R20. All of them are radial metric sizes, but they do not serve the same role. Some apply to square-fitment setups, while others belong to staggered front and rear wheel packages.
The first step is confirming whether the car has 18-inch, 19-inch, or 20-inch wheels, then checking whether the front and rear use the same size or different sizes. A 19-inch or 20-inch staggered setup requires matching the correct front and rear pair, so choosing by overall model name alone is not enough.
What size rim does a 2017 BMW 740i xDrive use?
The 2017 BMW 740i xDrive uses 18-inch, 19-inch, and 20-inch rim diameters depending on configuration. The 245/50R18 fits an 18-inch wheel, 245/45R19 and 275/40R19 fit 19-inch wheels, and 245/40R20 with 275/35R20 fit 20-inch wheels.
Rim diameter is the most important fitment detail to confirm before selecting a tire, because the sizes are not interchangeable across different wheel diameters. After that, check whether the car is square or staggered and make sure the wheel width is appropriate for the tire under consideration, especially on the wider rear fitments.
Why does the 2017 BMW 740i xDrive have more than one tire size?
Multiple tire sizes exist because the 2017 BMW 740i xDrive was fitted with different wheel packages, including square setups and staggered front-to-rear arrangements. The narrower 245-section sizes appear at the front or on four-corner setups, while the 275-section sizes are used at the rear on staggered configurations.
That means the correct tire depends on the actual wheel and axle combination on the car, not just the model name. Looking at the current tire sidewall, measuring wheel diameter, and checking whether front and rear sizes match will usually resolve the question before comparing tire series, sidewall styling, or brand choices.
Choosing the Right Tire
What should I consider when choosing a tire for a 2017 BMW 740i xDrive?
Start with the exact tire size and wheel diameter, because the 2017 BMW 740i xDrive uses multiple radial fitments across 18-inch, 19-inch, and 20-inch packages. After size is confirmed, compare whether the car is square or staggered, then look at the available tire series, sidewall treatment, and any rim-width guidance tied to that size.
The best comparison points are the ones that match how the car is used. Some owners will want a clean blackwall performance look, while others may prefer RWL or redline styling where those options exist. It also helps to compare load figures and wheel-width compatibility when those specifications are part of the product details.
What sidewall styles are available for 2017 BMW 740i xDrive tires?
Sidewall style depends on the tire size. Blackwall options are available across the BFGoodrich and Nitto fitments, while Pro-Trac Street Pro III adds RWL and redline choices in 245/50R18, 245/40R20, and 275/35R20. Not every sidewall treatment appears in every size, so appearance options vary by wheel package.
That matters most for buyers trying to balance visual style with the correct fitment. A square 18-inch setup opens different sidewall choices than a staggered 19-inch arrangement, and a 20-inch package brings its own mix of front and rear options. Confirm the size first, then narrow the sidewall style within that exact fitment.
What brands offer tires for the 2017 BMW 740i xDrive?
Tires for the 2017 BMW 740i xDrive 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. Brand availability changes with the tire size, so the mix is not identical across every wheel package.
Brand comparison is most useful after the exact front or rear size has been confirmed. Once the correct fitment is established, the real differences become tire series, sidewall treatment, and wheel-width compatibility rather than the brand name alone. That approach keeps the choice tied to the car’s actual setup instead of a general preference.
Restoration & Appearance
Which tire should I choose for a period-style 2017 BMW 740i xDrive?
A period-style choice for a 2017 BMW 740i xDrive starts with keeping the correct metric radial size and the correct wheel diameter for the car’s existing setup. Since this model is firmly a modern luxury sedan, the visual decision is less about bias-ply authenticity and more about whether the tire presentation should stay understated or add a more expressive sidewall treatment.
Blackwall options preserve the clean, contemporary look many owners expect on a 7 Series, while RWL or redline versions in certain sizes create a more customized appearance. Owners focused on exact original-delivery presentation should verify wheel package and appearance details against vehicle-specific BMW references before making a final selection.
How does tire construction affect the appearance of a restored 2017 BMW 740i xDrive?
Construction is straightforward on the 2017 BMW 740i xDrive because its primary fitments are radial throughout. The visual difference comes less from construction type and more from profile, wheel diameter, and sidewall styling within the correct size. On this car, a blackwall radial and a redline or RWL radial can create very different visual impressions.
Keeping the intended front and rear relationship is also part of the appearance equation, especially on staggered 19-inch or 20-inch setups. A mismatched wheel package or incorrect aspect ratio can change the car’s stance more noticeably than the brand name. That makes size accuracy the foundation of any restoration-oriented tire decision.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2017 BMW 740i xDrive?
Yes. Modifications can affect tire fitment on a 2017 BMW 740i xDrive, especially when they involve aftermarket wheels, wheel spacers, suspension height changes, or altered front-to-rear wheel widths. A car that originally used a square setup may no longer follow stock sizing conventions if the wheels have been changed.
The safest approach is to verify current wheel diameter, actual wheel width, and whether the car now uses a staggered arrangement before selecting tires. Clearance at the fender, inner suspension area, and steering range should also be checked on modified cars, since the correct nominal size does not guarantee the same fit on altered hardware.
What should I inspect before driving a 2017 BMW 740i xDrive on new tires?
Before driving on new tires, inspect the wheel condition, confirm that each tire size matches the correct axle position, and verify inflation before the car returns to regular use. It is also smart to look for valve-stem condition, uneven old tire wear, and any signs that the alignment or suspension may have been affecting the previous set.
A short road test should include attention to vibration, pull, rubbing, and steering feel, especially on staggered 19-inch and 20-inch setups. Rechecking pressure after the first drive and confirming that no tire is contacting liners or suspension components can catch installation or clearance issues early, before they become wear problems.
How often should tires on a 2017 BMW 740i xDrive be inspected?
Tires on a 2017 BMW 740i xDrive should be inspected regularly, not just when tread appears low. A visual check for punctures, sidewall damage, irregular wear, and pressure loss is worthwhile before longer drives and as part of routine monthly maintenance. On a vehicle with staggered fitment, front and rear tires deserve separate attention because they are different sizes.
Consistent inspection matters even more on cars that see irregular use or sit for long periods. Pressure drift, age-related cracking, and flat spotting can develop without obvious warning. Looking at wear patterns also helps confirm that the wheel alignment and suspension condition are not shortening the life of an otherwise correct tire choice.
