The 2017 BMW 440i xDrive Gran Coupe blends BMW’s four-door coupe styling with the all-weather traction of xDrive, making it a car that balances grand-touring comfort and sharper road manners. On this model, tire fitment centers on modern radial sizes in either 18-inch or 19-inch wheel packages, with a staggered front-and-rear setup rather than a one-size-fits-all arrangement. That means the real choice is not just size, but matching the correct front and rear combination, wheel diameter, and product series. Blackwall performance radials from BFGoodrich and Nitto give owners room to match the car’s appearance, intended use, and wheel setup before putting miles on it.
Which Tire Size Is Right for The 2017 BMW 440i xDrive Gran Coupe
The 2017 BMW 440i xDrive Gran Coupe uses four primary tire sizes because fitment depends on both wheel diameter and position on the car. Front tires use 225-section sizes and rear tires use 255-section sizes, with either an 18-inch or 19-inch setup. Before choosing tires, confirm whether the car is on 18-inch or 19-inch wheels and make sure the front and rear sizes stay correctly matched.
225/40R19 is a metric radial size where 225 is the section width in millimeters, 40 is the aspect ratio, R indicates radial construction, and 19 is the wheel diameter in inches. On the 2017 BMW 440i xDrive Gran Coupe, this size is used at the front in the 19-inch staggered setup. Available choices include BFGoodrich blackwall tires in the g-Force Comp 2 AS and g-Force Phenom T/A series. This size matters when the car is already equipped with 19-inch front wheels and the goal is to preserve the proper front fitment and overall balance of the staggered package.
225/45R18 is a metric radial size with a 225-millimeter section width, a 45-series profile, and fitment for an 18-inch rim. This is the front tire size for the 18-inch staggered setup used on the 2017 BMW 440i xDrive Gran Coupe. Product choices include blackwall 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 the car has 18-inch front wheels and the owner wants to compare series, rim-width compatibility, and overall tire character within the correct front fitment.
255/35R19 is a metric radial tire size in which 255 denotes section width in millimeters, 35 is the aspect ratio, and 19 is the rim diameter in inches. On this BMW, it serves as the rear tire for the 19-inch staggered arrangement, pairing with a narrower 225/40R19 front. BFGoodrich offers this blackwall size in multiple g-Force series, including Comp 2 AS, Sport Comp 2, and Phenom T/A. Choosing this size correctly is essential when maintaining the intended rear stagger, especially on a car where wheel diameter and front-to-rear width relationship both affect fitment.
255/40R18 is a metric radial size with a 255-millimeter section width, 40-series profile, and 18-inch wheel fitment. It is the rear tire size used with the 18-inch staggered package on the 2017 BMW 440i xDrive Gran Coupe. Available blackwall options come from BFGoodrich in g-Force Comp 2 AS, g-Force Sport Comp 2, and g-Force Phenom T/A form. This size should be matched to the correct 18-inch rear wheel setup rather than selected on its own, since the tire choice needs to work as part of the proper front-and-rear combination.
Sub-model fitment on the 2017 BMW 440i xDrive Gran Coupe is straightforward once the wheel diameter and tire position are clear. The covered fitments separate into base, front, and rear applications, so choosing tires starts with confirming whether you are replacing front tires, rear tires, or a complete staggered set.
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2017 BMW 440i xDrive Gran Coupe Base
The Base fitment centers on the front tire sizes used with either the 18-inch or 19-inch wheel package. Tire selection here means confirming wheel diameter first, then choosing among the available blackwall radial series that suit the car’s current setup.
The Base Front application uses the narrower front tire sizes that pair with the car’s staggered rear fitment. That makes front replacement straightforward once the wheel diameter is verified, while still leaving room to compare available radial tire series and rim-width specifications.
The Base Rear application uses the wider rear tire sizes that complete the staggered setup on either 18-inch or 19-inch wheels. Rear tire choice should stay aligned with the matching front size and existing wheel package so the car keeps the intended front-to-rear fitment relationship.
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 Gran Coupe Tires for Sale
Available tires for the 2017 BMW 440i xDrive Gran Coupe focus on blackwall radial performance options. Depending on size, buyers can compare BFGoodrich and Nitto offerings across series such as g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and NT555 G2.
These FAQs focus on the staggered tire fitment used on the 2017 BMW 440i xDrive Gran Coupe, including front and rear sizing, 18-inch versus 19-inch wheels, product selection, and the checks worth making before road use.
Tire Size & Fitment
What tire size fits a 2017 BMW 440i xDrive Gran Coupe?
The 2017 BMW 440i xDrive Gran Coupe 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 pairing depends on whether the car is equipped with 18-inch or 19-inch wheels.
The key is to confirm wheel diameter and tire position before ordering replacements. A front size should stay matched to the correct rear size for the same wheel package, and a rear size should not be treated as interchangeable with the front. If the car has aftermarket wheels, verify width and clearance as well as the size molded on the current tires.
What size rim does a 2017 BMW 440i xDrive Gran Coupe use?
The 2017 BMW 440i xDrive Gran Coupe uses either 18-inch or 19-inch rims, depending on the tire package on the car. The 18-inch setup uses 225/45R18 front and 255/40R18 rear, while the 19-inch setup uses 225/40R19 front and 255/35R19 rear.
Rim diameter is the first thing to verify because it determines which tire sizes are even possible. Once that is confirmed, wheel width still matters, especially on a staggered setup where the rear tires are substantially wider than the fronts. Checking the wheel markings or the existing tire size is the safest way to confirm the current configuration.
Why does the 2017 BMW 440i xDrive Gran Coupe have more than one tire size?
This BMW has more than one tire size because it uses a staggered arrangement and was offered with two wheel diameters. The front tires are narrower than the rear tires, and each staggered set was built around either 18-inch or 19-inch wheels. That creates four fitment sizes across the full vehicle layout.
For the owner, that means tire selection starts with identifying both the wheel diameter and the position on the car. Replacing one axle with the wrong companion size can upset the intended front-to-rear setup. It is also worth checking that all four wheels remain the same style and size package if the car has had any previous wheel changes.
Choosing the Right Tire
What should I consider when choosing a tire for a 2017 BMW 440i xDrive Gran Coupe?
Start with the correct size for the wheel diameter and axle position, since this car uses staggered front and rear fitment. All primary options are radial tires, so the main comparison points become brand, tire series, rim-width compatibility, and any load figures or other specifications tied to the exact size you need.
A front tire decision should also make sense with the rear tire already on the car, especially if only one axle is being replaced. Owners using the car for daily road use may compare all-season and more performance-focused series differently than those refreshing a fair-weather setup. Matching the size correctly comes first, then the intended driving use refines the choice.
What sidewall styles are available for 2017 BMW 440i xDrive Gran Coupe tires?
The available tires for the 2017 BMW 440i xDrive Gran Coupe use a blackwall sidewall style. That applies across the 18-inch and 19-inch sizes in the currently available product range, so the visual choice is more about tire series and brand than switching between different stripe or letter treatments.
That consistency makes selection simpler if the goal is a clean modern appearance that suits the car’s original design era. Since sidewall styling is not the main variable here, owners are better served by comparing the exact size, wheel compatibility, and series character. Keeping all four tires visually consistent also matters on a staggered setup where front and rear sizes already differ.
What brands offer tires for the 2017 BMW 440i xDrive Gran Coupe?
BFGoodrich appears across all four primary sizes for the 2017 BMW 440i xDrive Gran Coupe, offering several g-Force series depending on the size. Nitto is also available in 225/45R18 through the NT555 G2. That gives owners a mix of brand and series choices, especially in the 18-inch front size.
Brand selection should still follow fitment first. A tire only matters if it matches the correct front or rear size and the wheel it will be mounted on. Once the size is settled, comparing the available series within that brand range can help narrow the choice for daily driving, warm-weather use, or a more performance-oriented setup.
Restoration & Appearance
Which tire should I choose for a period-style 2017 BMW 440i xDrive Gran Coupe?
A period-style choice for a 2017 BMW 440i xDrive Gran Coupe starts with keeping the proper staggered radial sizing and the correct 18-inch or 19-inch wheel package. Because the available tires are blackwall radials, the visual presentation remains in line with the modern performance-touring character this Gran Coupe carried when new.
The most important appearance decision is usually preserving the intended front-and-rear relationship rather than searching for vintage-style sidewall treatments. Matching the car’s existing wheel diameter and using the correct companion sizes keeps the overall stance looking right. If originality matters beyond that, compare the current setup to marque-specific references and the car’s individual equipment history.
Does correct tire fitment matter for a 2017 BMW 440i xDrive Gran Coupe restoration?
Correct tire fitment matters because the 2017 BMW 440i xDrive Gran Coupe was designed around specific staggered front and rear radial sizes. Using the right size pair for the installed wheel diameter helps preserve the car’s intended proportions and avoids an appearance mismatch between axles.
Fitment also affects how convincing a restoration or careful refurbishment feels when viewed as a whole. Tires that are too tall, too short, or mounted on the wrong wheel package can make the car look off even before it is driven. Verifying wheel size, front-to-rear pairing, and a consistent blackwall presentation usually gives the cleanest result.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2017 BMW 440i xDrive Gran Coupe?
Yes, modifications can affect tire fitment on a 2017 BMW 440i xDrive Gran Coupe. Aftermarket wheels, changes in wheel width, offset differences, lowered suspension, or body alterations can all change how a 225-front or 255-rear tire sits in the wheel opening. Even when the tire size is correct on paper, the vehicle setup may no longer match stock clearances.
That is why it helps to inspect the car rather than relying only on model-year fitment. Check steering clearance at full lock, rear fender room, and the actual wheel dimensions before mounting new tires. On a staggered xDrive car, keeping the correct size pairing side to side and axle to axle is especially important after any wheel or suspension change.
What should I inspect before driving a 2017 BMW 440i xDrive Gran Coupe on new tires?
Before driving on new tires, inspect tire pressure, mounting direction if applicable, wheel fastener torque, and visible clearance around the suspension and fenders. On a 2017 BMW 440i xDrive Gran Coupe, it is also important to confirm that the front and rear sizes are mounted in the correct positions and that the wheel diameter matches the installed tire.
A short, careful test drive can reveal rubbing, vibration, or handling changes before the car is put into normal service. It also helps to recheck pressures after the initial drive and look for any signs of air loss. If the car has been sitting or recently changed wheels, inspect brakes and suspension condition at the same time.
How often should tires on a 2017 BMW 440i xDrive Gran Coupe be inspected?
Tires on a 2017 BMW 440i xDrive Gran Coupe should be inspected regularly, not just when tread looks low. Check them for uneven wear, punctures, sidewall damage, cracking, and pressure loss as part of routine ownership, and inspect them again before longer trips or after the car has been parked for an extended period.
That habit matters even more on a staggered setup because front and rear tires do not share the same size or wear pattern. Looking closely at both axles can catch alignment or clearance issues early. Owners should also keep an eye on tire age and overall condition, especially on a low-mileage car that may spend long periods stored.
