The 2017 BMW 440i xDrive sits in the modern grand-touring side of the 4 Series lineup, blending turbocharged performance with all-wheel-drive confidence in coupe and convertible form. It is also a car where tire fitment is tied closely to wheel package and front-to-rear sizing. This application uses radial tires in staggered 18-inch or 19-inch combinations, with narrower front sizes and wider rear sizes. Available choices center on blackwall performance-oriented series from BFGoodrich and Nitto, rather than vintage-style sidewall treatments or bias-ply construction. The key is confirming whether the car has the 18-inch or 19-inch setup, then matching front and rear sizes correctly before comparing tire series and rim-width compatibility.
Which Tire Size Is Right for The 2017 BMW 440i xDrive
The 2017 BMW 440i xDrive uses four primary tire sizes because fitment is split by both axle position and wheel diameter. Front tires are 225-width sizes, rear tires are 255-width sizes, and the car can be equipped with either 18-inch or 19-inch rims. Before choosing a tire, confirm whether the vehicle has the 18-inch or 19-inch wheel package and whether you are replacing front tires, rear tires, or a complete staggered set.
Fit(s): Convertible, Convertible Front, Coupe, and Coupe Front
Construction: Radial|Rim: 19 in
225/40R19 is a metric radial size with a 225-millimeter section width, a 40-series profile, radial construction, and a 19-inch rim diameter. On the 2017 BMW 440i xDrive, this size serves the front position in the 19-inch staggered setup, pairing a lower-profile sidewall with the wider 19-inch wheel package. Available choices are blackwall radial tires from BFGoodrich in g-Force Comp 2 AS and g-Force Phenom T/A series. This size should be chosen only when the car has the 19-inch front wheel setup and the wheel width matches the tire's approved range.
Fit(s): Convertible, Convertible Front, Coupe, and Coupe Front
Construction: Radial|Rim: 18 in
225/45R18 is a metric radial size that combines a 225-millimeter section width with a 45-series profile on an 18-inch rim. For the 2017 BMW 440i xDrive, it is the front tire size used with the 18-inch staggered package, giving a slightly taller sidewall than the 19-inch front fitment. Product choices include blackwall performance radials from BFGoodrich and Nitto across series such as g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and NT555 G2. It is the right size to evaluate when replacing front tires on an 18-inch-equipped car and comparing series character or rim-width compatibility.
255/35R19 is a metric radial size with a 255-millimeter section width, a 35-series profile, radial construction, and a 19-inch rim diameter. On the 2017 BMW 440i xDrive, this is the rear tire size for the 19-inch staggered arrangement, matching the wider rear axle fitment used on the coupe and convertible rear applications. Available options are blackwall BFGoodrich tires in g-Force Comp 2 AS, g-Force Sport Comp 2, and g-Force Phenom T/A lines. This size belongs on the rear only, so it should be selected after confirming both axle position and the car's 19-inch wheel package.
255/40R18 is a metric radial size that uses a 255-millimeter section width and a 40-series profile on an 18-inch rim. It serves as the rear tire size for the 18-inch staggered setup on the 2017 BMW 440i xDrive, keeping the wider rear footprint that distinguishes the car's front and rear fitment. BFGoodrich offers this size in blackwall g-Force Comp 2 AS, g-Force Sport Comp 2, and g-Force Phenom T/A series. This is the rear fitment to compare when the vehicle runs 18-inch wheels and the goal is to match the correct axle position, wheel width, and tire series.
Sub-model fitment on the 2017 BMW 440i xDrive is straightforward in overall pattern but still requires attention to axle position and wheel diameter. Coupe and convertible applications share the same staggered front and rear sizing logic, so the main task is confirming whether the car uses the 18-inch or 19-inch setup.
1
2017 BMW 440i xDrive Convertible
The 2017 BMW 440i xDrive Convertible follows the same staggered tire approach as the coupe, using one front size and one rear size within either an 18-inch or 19-inch package. Tire selection starts with wheel diameter, then moves to replacing the correct front and rear sizes as a matched setup.
The 2017 BMW 440i xDrive Convertible Front uses the narrower front tire sizes in either the 18-inch or 19-inch wheel package. That means the buyer should confirm wheel diameter first, then compare blackwall radial options within the correct front size and approved rim-width range.
The 2017 BMW 440i xDrive Convertible Rear uses the wider rear tire sizes that complete the staggered fitment. Selection here centers on matching the rear size to the installed 18-inch or 19-inch wheels and keeping the front-to-rear pairing consistent.
The 2017 BMW 440i xDrive Coupe uses the same staggered tire layout as the convertible, with separate front and rear sizes tied to either 18-inch or 19-inch rims. Choosing correctly depends on confirming the wheel package and keeping axle-specific sizing in place when replacing tires.
The 2017 BMW 440i xDrive Coupe Front uses the narrower front radial sizes, with one fitment for 18-inch wheels and another for 19-inch wheels. Tire choice is less about alternate construction and more about confirming wheel diameter, front position, and the preferred performance-oriented tire series.
The 2017 BMW 440i xDrive Coupe Rear uses the wider rear radial sizes associated with the car's staggered setup. That makes rear tire selection dependent on wheel diameter first, followed by choosing the appropriate blackwall radial series for the intended road use.
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 440i xDrive Tires for Sale
Available 2017 BMW 440i xDrive tire choices focus on blackwall radial performance tires from BFGoodrich and Nitto. Across the four axle-specific sizes, buyers can compare series such as g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and NT555 G2, along with rim-width specifications and load details where stated.
These FAQs focus on the 2017 BMW 440i xDrive's staggered front and rear sizing, 18-inch versus 19-inch wheel packages, radial tire selection, and the fitment checks that matter before road use.
Tire Size & Fitment
What tire size fits a 2017 BMW 440i xDrive?
The 2017 BMW 440i xDrive uses a staggered radial tire setup rather than one universal size. Front fitment is 225/45R18 or 225/40R19, while rear fitment is 255/40R18 or 255/35R19. The correct combination depends on whether the car has the 18-inch or 19-inch wheel package.
That means tire selection starts with wheel diameter and axle position, not just the year and model name. A front size should not be substituted for a rear size, and an 18-inch fitment should not be mixed with a 19-inch fitment. Checking the current wheel markings and the existing tire sizes is the fastest way to confirm what belongs on the car.
What size rim does a 2017 BMW 440i xDrive use?
The 2017 BMW 440i xDrive uses either 18-inch or 19-inch rims, depending on the wheel package. The front sizes are matched to 18-inch or 19-inch front wheels, and the rear sizes are matched to the corresponding 18-inch or 19-inch rear wheels in the staggered setup.
Rim diameter is the first thing to confirm before replacing tires, because a 19-inch tire will not mount on an 18-inch wheel and vice versa. Wheel width matters too, especially on staggered performance applications like this one. If the car has aftermarket wheels, verify both diameter and width before choosing among the available radial options.
Why does the 2017 BMW 440i xDrive have more than one tire size?
The 2017 BMW 440i xDrive has more than one tire size because it uses a staggered layout with narrower front tires and wider rear tires, and it can also be equipped with either 18-inch or 19-inch wheels. That creates four primary sizes across the full application rather than a single all-around fitment.
The practical result is that the correct tire depends on two things: wheel diameter and whether the tire is for the front or rear axle. Owners replacing a full set should keep the front and rear sizes paired within the same wheel package. Owners replacing only two tires should confirm that the remaining pair still matches the car's current setup.
Choosing the Right Tire
What should I consider when choosing a tire for a 2017 BMW 440i xDrive?
Start with the correct axle-specific size and wheel diameter, since the 2017 BMW 440i xDrive uses staggered 18-inch or 19-inch radial fitments. After that, compare the available tire series, approved rim-width range, and any stated load details. The product mix here is centered on modern blackwall performance radials.
Choice usually comes down to matching the car's existing wheel package and deciding how the car is used, whether that means regular street driving or a more performance-focused setup. Replacing front and rear tires with the correct paired sizes matters more than chasing a different profile. On a modified car, wheel width and clearance should be checked before final selection.
What sidewall styles are available for 2017 BMW 440i xDrive tires?
The available tires for the 2017 BMW 440i xDrive are blackwall radials across all four primary sizes. That keeps the appearance modern and performance-oriented, which suits the character of the car and the tire series offered in these fitments.
Since there are no alternate sidewall treatments in these sizes here, the main appearance differences come from the tire series rather than whitewalls, redlines, or raised white letters. Buyers choosing on appearance should focus on keeping the front and rear setup consistent. Buyers choosing on fitment should still prioritize the correct size, wheel diameter, and axle position first.
What brands offer tires for the 2017 BMW 440i xDrive?
BFGoodrich and Nitto offer applicable tires for the 2017 BMW 440i xDrive. BFGoodrich appears across all four primary sizes in several g-Force series, while Nitto is represented in the 225/45R18 front size with the NT555 G2.
Brand choice should come after confirming the exact size needed for the front or rear axle. Since not every brand appears in every size, the decision may differ depending on whether the car has 18-inch or 19-inch wheels. It also helps to compare the approved rim-width range and any stated load information instead of choosing on brand name alone.
Restoration & Appearance
Does correct tire fitment matter for a 2017 BMW 440i xDrive restoration?
Correct tire fitment matters on a 2017 BMW 440i xDrive because the car relies on axle-specific staggered sizing and wheel-diameter-specific fitment. Even on a clean preservation or restoration-minded example, the correct front and rear tire relationship is part of maintaining the proper overall presentation and setup.
Appearance on a newer BMW like this is less about vintage sidewall styling and more about preserving the right stance and wheel-to-tire proportion. Staying with the correct 18-inch or 19-inch package helps avoid an off-balance look. If originality is important, compare the current wheel and tire setup with vehicle-specific BMW reference material before making changes.
How does tire construction affect the appearance of a restored 2017 BMW 440i xDrive?
On the 2017 BMW 440i xDrive, tire construction is straightforward because the primary fitments are radial. That means appearance differences are driven more by the tire's profile and the correct staggered front-to-rear sizing than by a choice between bias-ply and radial construction.
Keeping the correct 225-width front and 255-width rear combination within the proper 18-inch or 19-inch package preserves the car's intended visual balance. An incorrect profile or mismatched wheel diameter can change that look quickly. For a restoration-oriented result, the goal is usually a properly proportioned blackwall radial setup rather than a nostalgic sidewall treatment.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2017 BMW 440i xDrive?
Yes, modifications can affect tire fitment on a 2017 BMW 440i xDrive. Aftermarket wheels, suspension changes, spacers, lowering, and alignment changes can all alter how the factory-style staggered sizes sit in the wheel openings and how much clearance they have during steering and suspension movement.
A modified car should be checked for wheel diameter, width, and offset before choosing replacement tires. Fender clearance and inner suspension clearance matter just as much as the size molded on the sidewall. Even when using one of the primary sizes, a changed wheel or ride height can create a different fitment result than a stock setup.
What should I inspect before driving a 2017 BMW 440i xDrive on new tires?
Before driving a 2017 BMW 440i xDrive on new tires, inspect wheel condition, confirm the front and rear sizes are mounted in the correct positions, and check inflation pressure. It also helps to verify that the tires match the car's 18-inch or 19-inch wheel package and that there is no visible interference at full steering lock.
A short initial drive should be used to confirm there is no rubbing, vibration, or air-loss issue. Recheck pressure after the first few outings and inspect the sidewalls for any signs of contact. On a car with staggered sizing, it is especially important to make sure the wider rear tires and narrower front tires have not been mixed.
How often should tires on a 2017 BMW 440i xDrive be inspected?
Tires on a 2017 BMW 440i xDrive should be inspected regularly, especially if the car is driven seasonally or spends long periods parked. A routine check should include tread wear, visible cuts, bulges, cracking, uneven shoulder wear, and any sign of gradual air loss in either the front or rear pair.
Performance-oriented radial tires can show fitment or alignment issues through wear patterns before a problem becomes obvious from behind the wheel. Checking them before longer trips is a smart habit, particularly on a staggered setup where front and rear tires cannot simply be treated as one interchangeable group. Pressure should be monitored consistently as part of that routine.
