The 2024 Genesis G90 sits at the modern luxury end of the full-size sedan market, blending a long-wheelbase executive-car presence with contemporary performance and technology. Tire selection on this car is tied closely to trim and axle position, because the G90 uses staggered radial fitments in either 20-inch or 21-inch sizes. The 3.5T AWD runs 245/45R20 front and 275/40R20 rear, while the E-Supercharger uses 245/40R21 front and 275/35R21 rear. Available choices also vary by brand, tire series, and sidewall treatment, including blackwall, redline, and raised white letter options. The key is confirming the exact setup before comparing appearance, rim compatibility, and intended road use.
Which Tire Size Is Right for The 2024 Genesis G90
The 2024 Genesis G90 uses four primary tire sizes, and the right one depends first on sub-model and axle position. This is a staggered radial fitment, with one front size and one rear size for the 20-inch setup, and a different front-and-rear pair for the 21-inch setup. Before choosing a tire, confirm whether the car is a 3.5T AWD or E-Supercharger and verify whether you are replacing a front or rear tire.
245/45R20 is a modern metric radial size in which 245 identifies the nominal section width in millimeters, 45 is the aspect ratio, and 20 is the wheel diameter in inches. On the 2024 Genesis G90, this size serves the front position on the 3.5T AWD setup and keeps the car within its intended 20-inch fitment. Available choices include BFGoodrich, Nitto, and Pro-Trac options, with blackwall, redline, and raised white letter sidewall treatments across several tire series. This size is the one to evaluate when replacing front tires on a 20-inch G90 while keeping appearance and wheel compatibility in mind.
275/40R20 is a modern metric radial size, with 275 denoting nominal section width in millimeters, 40 indicating the aspect ratio, and 20 marking the rim diameter. On the 2024 Genesis G90, this is the rear tire size for the 3.5T AWD configuration, giving the 20-inch staggered setup its wider rear fitment. Product choices span BFGoodrich, Nitto, M&H Racemaster, and Pro-Trac, with blackwall, redline, and raised white letter offerings and several distinct tire series. This is the size to confirm when replacing rear tires on a 20-inch car, especially if wheel width or intended use differs from stock.
245/40R21 is a modern metric radial size that uses a 245-millimeter nominal section width, a 40-series aspect ratio, and a 21-inch wheel diameter. For the 2024 Genesis G90, this size is used at the front of the E-Supercharger configuration and belongs specifically to the 21-inch staggered setup. Its role is different from the 20-inch front fitment, even though both are front-position sizes on the same model line. This is the size to verify when the car has 21-inch wheels, since rim diameter confirmation matters before any comparison of replacement options or front-to-rear matching.
275/35R21 is a modern metric radial size, where 275 is the nominal width in millimeters, 35 is the aspect ratio, and 21 is the wheel diameter. On the 2024 Genesis G90, it is the rear tire size for the E-Supercharger and completes that model's staggered 21-inch arrangement. Its shorter sidewall profile and larger rim diameter place it in a different fitment path than the 20-inch rear setup. This is the correct size to review when replacing rear tires on a 21-inch G90, and wheel size should be confirmed before comparing any other specification.
Sub-model fitment on the 2024 Genesis G90 is not interchangeable at a glance, because tire size changes by trim and by front versus rear position. Checking the exact sub-model and axle location first prevents mixing the 20-inch and 21-inch staggered setups.
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2024 Genesis G90 3.5T AWD Front
The 2024 Genesis G90 3.5T AWD Front uses the front tire size from the 20-inch staggered setup. That means replacement selection should stay focused on front-position 20-inch radial options and should be matched carefully to the rear size already on the car.
The 2024 Genesis G90 3.5T AWD Rear uses the wider rear tire from the 20-inch staggered arrangement. Rear replacement choice should center on the correct 20-inch radial size and on wheel-width compatibility if the car has aftermarket wheels.
The 2024 Genesis G90 E-Supercharger Front uses the front tire size from the 21-inch staggered package. Tire selection here starts with confirming the larger wheel diameter, then comparing front-specific replacement options that suit the car's existing rear pairing.
The 2024 Genesis G90 E-Supercharger Rear uses the wider rear tire in the 21-inch setup. Choosing a replacement means confirming the 21-inch rear fitment first and avoiding confusion with the different rear size used on the 20-inch 3.5T AWD.
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 2024 Genesis G90 Tires for Sale
Available 20-inch G90 tire choices include BFGoodrich, Nitto, Pro-Trac, and M&H Racemaster across several radial series. Buyers can compare blackwall, redline, and raised white letter sidewalls, along with differing rim-width specifications and load-capacity details where those are stated.
These 2024 Genesis G90 tire FAQs focus on staggered sizing, 20-inch versus 21-inch wheel fitment, front-to-rear differences, available brands and sidewall styles, and the key checks to make before road use or replacement.
Tire Size & Fitment
What tire size fits a 2024 Genesis G90?
The 2024 Genesis G90 uses four primary radial tire sizes, depending on trim and axle position. The 3.5T AWD uses 245/45R20 in front and 275/40R20 in the rear, while the E-Supercharger uses 245/40R21 in front and 275/35R21 in the rear. This is a staggered setup, so front and rear sizes are different.
The important step is identifying both the exact G90 trim and whether the tire being replaced is on the front or rear axle. A 20-inch setup and a 21-inch setup are both used on this model, so wheel diameter should be confirmed before comparing any tire options or assuming one G90 size applies to another.
What size rim does a 2024 Genesis G90 use?
A 2024 Genesis G90 uses either 20-inch or 21-inch rims, depending on the vehicle configuration. The 3.5T AWD setup uses 20-inch wheels with 245/45R20 front and 275/40R20 rear tires, while the E-Supercharger setup uses 21-inch wheels with 245/40R21 front and 275/35R21 rear tires.
Rim diameter is the first fitment point to verify because the G90 does not use one wheel size across every configuration. Once diameter is confirmed, the next step is matching the correct front or rear tire size, then checking wheel width if the car has been changed from its original wheel setup.
Why does the 2024 Genesis G90 have more than one tire size?
The 2024 Genesis G90 has more than one tire size because it uses staggered fitment and different wheel packages by trim. One front size and one wider rear size are used on the 20-inch 3.5T AWD setup, and a different front-and-rear pair is used on the 21-inch E-Supercharger setup.
That means tire selection is tied to the exact configuration rather than just the model name. A buyer should verify trim, axle position, and wheel diameter before replacing a tire, because the G90's sizing differences are part of the car's overall fitment package and should not be mixed casually.
Choosing the Right Tire
What should I consider when choosing a 245/45R20 or 275/40R20 tire for a 2024 Genesis G90?
Start with the correct position-specific size, since the 2024 Genesis G90 3.5T AWD uses 245/45R20 in front and 275/40R20 in the rear. From there, compare construction details, sidewall style, rim-width specifications where stated, and any load-capacity information included with the tire. Brand and tire-series differences also shape the final choice.
A practical selection usually comes down to how the car is used and how the owner wants it to look. Blackwall choices keep a modern presentation, while redline and raised white letter options change the visual character noticeably. Wheel width should be confirmed before final selection, especially if the G90 is no longer on its original wheels.
What sidewall styles are available for 2024 Genesis G90 tires?
Available sidewall styles for 2024 Genesis G90 20-inch tires include blackwall, redline, and RWL, which is raised white letter. Blackwall appears across BFGoodrich, Nitto, and M&H Racemaster offerings, while Pro-Trac Street Pro III adds redline and raised white letter choices in both 245/45R20 and 275/40R20 sizes.
Sidewall style changes the car's appearance more than its fitment, but it still matters when matching front and rear tires on a staggered setup. Owners who want a cleaner contemporary look often stay with blackwalls, while redline or raised white letter tires create a more customized visual treatment on an otherwise modern luxury sedan.
What brands offer tires for the 2024 Genesis G90?
For the 2024 Genesis G90 20-inch sizes, available brands include BFGoodrich, Nitto, Pro-Trac, and M&H Racemaster. Those choices appear across several tire series, including g-Force Sport Comp 2, g-Force Comp 2 AS, g-Force Phenom T/A, Nitto NT555 G2, Street Pro III, and a drag radial offering for the 275/40R20 rear size.
Brand choice should be considered alongside the exact tire size, the intended front or rear position, and the type of presentation you want from the car. Some options stay strictly blackwall, while others add redline or raised white letter styling, so the best comparison is usually made by sorting first by fitment and then by appearance and specification details.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2024 Genesis G90?
Yes, modifications can affect tire fitment on a 2024 Genesis G90. Changes such as aftermarket wheels, altered wheel width, suspension lowering, or body modifications can influence clearance even when the tire size itself matches the car's original front or rear specification. That matters even more on a staggered setup with different front and rear sizes.
A modified G90 should be checked for wheel diameter, wheel width, steering clearance, and fender clearance before replacement tires are chosen. Front and rear positions should be evaluated separately, since the car does not use the same size at all four corners. Small setup changes can create fitment issues that are easy to miss until the tire is mounted.
What should I inspect before driving a 2024 Genesis G90 on new tires?
Before driving a 2024 Genesis G90 on new tires, inspect the wheel diameter and confirm the correct front or rear size was installed. Check inflation pressure, look for any sign of rubbing at full steering lock, and make sure the tires seat properly on the wheels. A quick visual review of sidewall condition and tread is also worthwhile.
It also helps to inspect the car itself, especially if it has seen curb impacts or wheel changes. Alignment condition, suspension wear, and damaged wheels can shorten tire life or create uneven behavior. After the first few drives, recheck pressure and look again for clearance issues, particularly on a staggered setup with wider rear tires.
What should I check before a longer drive in a 2024 Genesis G90?
Before a longer drive in a 2024 Genesis G90, verify that all four tires are the correct sizes for the car's trim and that front and rear positions have not been mixed. Inspect air pressure, tread condition, and sidewalls for cuts, bulges, or cracking. Wheels should also be checked for visible damage that could affect highway use.
Longer trips are a good time to confirm the overall condition of a low-mileage or recently purchased car as well. Tires can look good at a glance yet still have age, storage, or air-loss issues that matter once speeds and distances increase. A careful pre-drive inspection helps catch problems before they become a roadside interruption.
