2020 BMW 740i Tires

The 2020 BMW 740i uses several primary tire sizes: 245/50R18, 245/45R19, 245/40R20, 275/40R19, and 275/35R20. The correct size depends on the wheel package and whether the car is using a square setup or a staggered arrangement with different front and rear tires.

The most important step is confirming the actual wheel diameter and axle position before choosing a tire. A 19-inch square setup differs from a 19-inch staggered setup, and a 20-inch front tire should not be selected as though it were a rear fitment. Checking the existing tire placard, wheel markings, and current front-to-rear sizes helps avoid ordering the right size for the wrong position.

The 2020 BMW 740i uses 18-inch, 19-inch, and 20-inch rim diameters, depending on configuration. The 245/50R18 size mounts on an 18-inch rim, the 245/45R19 and 275/40R19 sizes mount on 19-inch rims, and the 245/40R20 and 275/35R20 sizes mount on 20-inch rims.

Rim diameter is the first fitment detail to verify because tires only mount to the matching wheel diameter. After that, check whether the car uses the same size at all four corners or a staggered front-and-rear arrangement. On a sedan like the 740i, that distinction shapes everything else, including which size belongs on the front axle and which one belongs on the rear.

Multiple tire sizes appear on the 2020 BMW 740i because different wheel packages are used, and some setups are staggered. In a square arrangement, the car can use one size at all four corners, while staggered setups pair a narrower front tire with a wider rear tire on the same vehicle.

That means tire selection starts with the exact configuration already on the car rather than with the model name alone. A 19-inch setup may use the same wheel diameter front and rear but still require different tire widths, while a base square setup may use one size all around. Matching the new tires to the existing wheel package helps preserve proper clearance and balance.

Start with the exact tire size, wheel diameter, and whether the 2020 BMW 740i uses a square or staggered setup. From there, compare radial construction details such as brand, tire series, sidewall style, rim-width specification where stated, and load-related information when it appears on the product.

The right choice depends on how the car is used and how you want it to present. A blackwall performance-style tire gives a different look than an RWL or redline option, even when the size is correct. On a modern luxury sedan, it also helps to keep front and rear selections consistent with the wheel package already in place.

Sidewall style depends on the tire size. Blackwall options are available in the 19-inch and 20-inch BFGoodrich and Nitto fitments, while Pro-Trac Street Pro III options add RWL and redline styles in 245/50R18, 245/40R20, and 275/35R20.

That gives the 2020 BMW 740i owner a meaningful appearance choice beyond size alone. A blackwall keeps a more understated modern look, while raised white lettering or a redline adds a more assertive visual character. The main thing is to choose the sidewall treatment only after confirming the correct wheel package and axle position for the car.

BFGoodrich, Nitto, and Pro-Trac all offer tires for 2020 BMW 740i fitments. Depending on the size, available series include BFGoodrich g-Force Comp 2 AS, g-Force Phenom T/A, g-Force Sport Comp 2, Nitto NT555 G2, and Pro-Trac Street Pro III.

Brand choice should come after the fitment basics are settled. Once the correct size is confirmed, compare the available series by sidewall style, rim-width suitability where stated, and the overall look you want on the car. That approach keeps the decision focused on proper application first and product character second.

Yes. On a 2020 BMW 740i, aftermarket wheels, suspension changes, ride-height adjustments, or spacer use can affect tire fitment even when the size sounds close to stock. That matters even more on staggered setups, where front and rear widths are already different by design.

A modified car should be checked for actual wheel diameter, wheel width, and clearance at full steering lock and suspension travel before replacement tires are chosen. It is also smart to verify whether the current setup remains square or staggered. Small changes in hardware can alter which of the factory-size ranges still make sense for the vehicle.

Before road use, inspect wheel condition, lug hardware, valve stems, and inflation pressure, then make sure the new tires match the correct front or rear positions. It also helps to confirm that tread and sidewalls are free from shipping damage, cuts, or bead issues after mounting.

A quick clearance check is especially worthwhile on a 2020 BMW 740i with staggered sizing or larger wheels. Turn the steering from lock to lock, listen for rubbing, and make sure the suspension sits normally. After a short drive, recheck pressure and look for any sign of uneven seating or contact that needs attention.

Before a longer trip, confirm that all four tires are the correct sizes for their wheel positions, then inspect pressure, tread condition, and sidewalls for cuts, bulges, or irregular wear. On a 2020 BMW 740i, that check is especially important when the car uses a staggered setup with different front and rear sizes.

Longer highway use puts extra importance on consistency across the set. Make sure the front pair matches the intended front fitment and the rear pair matches the rear fitment, rather than mixing close-looking sizes. It is also wise to look over the wheels and suspension visually so any vibration or clearance issue is addressed before the trip begins.