The 2021 Genesis G80 sits in the modern luxury sport-sedan space, combining clean executive styling with the kind of chassis and powertrain choices that make wheel-and-tire fitment matter. On this generation, tire selection is tied closely to trim level and, in several cases, to staggered front-and-rear sizing rather than a simple four-tire match. The 2021 Genesis G80 uses radial tires in five primary sizes across 18-inch, 19-inch, and 20-inch wheel packages. Available choices range from blackwall performance-oriented series to RWL and redline offerings in select sizes. The key is confirming the exact sub-model and wheel setup before choosing a tire for appearance, handling character, or replacement fitment.
Which Tire Size Is Right for The 2021 Genesis G80
The 2021 Genesis G80 uses five primary tire sizes, and the right one depends first on the exact sub-model and wheel package. Fitment varies between a single 18-inch setup, staggered 19-inch front-and-rear sizes, and staggered 20-inch front-and-rear sizes, so identifying both the trim and the wheel diameter is the first step before comparing brands, sidewall style, or tire series.
A 245/50R18 tire is a metric radial size with a 245-millimeter section width, a 50-series profile, and fitment for an 18-inch rim. On the 2021 Genesis G80, this size serves the 2.5T configuration and represents the non-staggered 18-inch fitment choice. Available options in this size include Pro-Trac Street Pro III tires with either RWL or redline sidewall styling, giving the car a more customized look than a plain blackwall. This size is the one to evaluate when the car uses the 18-inch wheel package and the goal is staying with the proper overall fitment format.
Fit(s): 3.5T Front, Advanced 2.5T Front, and Prestige 2.5T Front
Construction: Radial|Rim: 19 in
A 245/45R19 tire uses a 245-millimeter section width, a 45-series profile, and a 19-inch rim diameter in radial construction. On the 2021 Genesis G80, this is the front tire size used on several 19-inch staggered setups, so it should be paired with the correct rear size rather than treated as a four-corner fitment for every version. Choices in this size include BFGoodrich and Nitto blackwall performance series such as g-Force Comp 2 AS, g-Force Phenom T/A, and NT555 G2. This is the size to confirm when replacing the front tires on a 19-inch G80 setup.
Fit(s): 3.5T Rear, Advanced 2.5T Rear, and Prestige 2.5T Rear
Construction: Radial|Rim: 19 in
A 275/40R19 tire is a wider metric radial size with a 275-millimeter section width, a 40-series profile, and a 19-inch rim diameter. On the 2021 Genesis G80, this size is used at the rear on the 19-inch staggered applications, where it works as part of a matched front-and-rear combination rather than a standalone universal fitment. BFGoodrich and Nitto offerings in this size include blackwall g-Force Sport Comp 2, g-Force Comp 2 AS, g-Force Phenom T/A, and NT555 G2 choices. This size matters most when the car has the 19-inch rear wheel and the owner wants to preserve the intended staggered setup.
A 245/40R20 tire combines a 245-millimeter section width with a lower 40-series profile on a 20-inch radial casing. On the 2021 Genesis G80, this is the front tire size for the Prestige 3.5T staggered 20-inch arrangement, so it belongs with the corresponding wider rear size. Product choices span BFGoodrich and Nitto blackwall performance lines as well as Pro-Trac Street Pro III options with RWL and redline sidewalls for a more distinctive presentation. This size is the one to verify when replacing front tires on the 20-inch package or matching a custom sidewall look across the car.
A 275/35R20 tire is a wide, low-profile metric radial with a 275-millimeter section width and fitment for a 20-inch rim. On the 2021 Genesis G80, it is the rear size for the Prestige 3.5T staggered 20-inch setup, making it part of a front-and-rear pairing rather than a universal four-tire choice. Available tires include blackwall BFGoodrich and Nitto performance series along with Pro-Trac Street Pro III versions in RWL and redline sidewall treatments. This size should be chosen only after confirming the car carries the 20-inch rear wheel and the correct staggered configuration.
Sub-model fitment on the 2021 Genesis G80 is not one-size-fits-all, because tire selection changes with trim level and wheel package. Several versions use staggered front-and-rear sizing, so checking the exact sub-model position and wheel diameter matters before replacing a single tire or a complete set.
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2021 Genesis G80 2.5T
The 2021 Genesis G80 2.5T uses a single 245/50R18 radial tire size rather than a staggered layout. That makes selection more straightforward, with the main decision centered on choosing the preferred tire style within the proper 18-inch fitment.
The 2021 Genesis G80 3.5T Front uses 245/45R19 radial tires as part of a staggered 19-inch setup. Tire selection should keep that front position in mind so the sizing relationship with the rear tires stays consistent.
The 2021 Genesis G80 3.5T Rear uses a wider 275/40R19 radial tire on the back of the car. Replacing this size calls for confirming rear-wheel fitment and matching it properly to the front tire size used on the same 19-inch package.
The 2021 Genesis G80 Advanced 2.5T Front uses 245/45R19 radial tires on the front axle. That makes front-tire replacement a matter of staying with the correct 19-inch front size while comparing the available blackwall tire series.
The 2021 Genesis G80 Advanced 2.5T Rear uses 275/40R19 radial tires at the rear. The important step is preserving the intended staggered arrangement instead of assuming the front and rear tires are the same size.
The 2021 Genesis G80 Prestige 2.5T Front uses 245/45R19 radial tires on a 19-inch front wheel. Selection comes down to choosing the right performance-oriented tire line while keeping the front size matched to the rear fitment on the car.
The 2021 Genesis G80 Prestige 2.5T Rear uses 275/40R19 radial tires at the rear position. That wider rear size should be confirmed before purchase, especially when replacing only two tires on an already staggered setup.
The 2021 Genesis G80 Prestige 3.5T Front uses 245/40R20 radial tires as the front half of the 20-inch staggered package. This fitment opens the door to either blackwall performance tires or select RWL and redline styles, provided the 20-inch wheel setup is confirmed.
The 2021 Genesis G80 Prestige 3.5T Rear uses 275/35R20 radial tires on the rear axle. Tire choice should preserve the 20-inch staggered front-and-rear relationship and confirm that the rear wheel and suspension clearance remain appropriate.
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 2021 Genesis G80 Tires for Sale
Available 2021 Genesis G80 tires vary by size, brand, series, and sidewall treatment. BFGoodrich, Nitto, and Pro-Trac options cover blackwall performance radials across the 19-inch and 20-inch fitments, while select 18-inch and 20-inch sizes also offer RWL and redline Street Pro III choices.
Common 2021 Genesis G80 tire questions usually center on matching the correct size to the right trim level, understanding staggered front-and-rear fitment, and comparing blackwall, RWL, or redline radial choices before replacement.
Tire Size & Fitment
What tire size fits a 2021 Genesis G80?
The 2021 Genesis G80 uses five primary tire sizes: 245/50R18, 245/45R19, 275/40R19, 245/40R20, and 275/35R20. The 2.5T uses 245/50R18, several 19-inch versions use a staggered 245/45R19 front and 275/40R19 rear setup, and the Prestige 3.5T uses a staggered 245/40R20 front and 275/35R20 rear arrangement.
The important step is identifying the exact trim and wheel package before choosing tires. A staggered G80 needs the correct front and rear sizes matched to their wheel positions, while the 18-inch 2.5T setup is a single-size application. Checking the sidewall on the car and confirming actual wheel diameter helps avoid ordering the right size for the wrong version.
What size rim does a 2021 Genesis G80 use?
The 2021 Genesis G80 uses 18-inch, 19-inch, and 20-inch rims depending on configuration. The 245/50R18 size fits the 18-inch setup, the 245/45R19 and 275/40R19 sizes fit 19-inch wheels, and the 245/40R20 and 275/35R20 sizes fit 20-inch wheels.
Rim diameter is the first thing to confirm because the G80 does not use one universal wheel size across the model range. It also matters whether the car uses the same size at all four corners or a staggered arrangement. Before replacing a tire, check the wheel itself and the existing tire sidewall so the new tire matches both the rim diameter and its front or rear position.
Why does the 2021 Genesis G80 have more than one tire size?
More than one tire size appears on the 2021 Genesis G80 because the model range includes different wheel packages and staggered front-and-rear setups. The 2.5T uses a single 18-inch size, while several 19-inch and 20-inch configurations use a narrower front tire and a wider rear tire.
That means the correct replacement tire is tied to the exact version of the car, not just the year and model name. A G80 with 19-inch wheels needs different sizing from one with 20-inch wheels, and a staggered setup should keep its proper front-to-rear relationship. Confirming the trim and reading the current tire sizes prevents mixing incompatible sizes on the same car.
Choosing the Right Tire
What should I consider when choosing a 2021 Genesis G80 tire?
Start with the correct size for the exact 2021 Genesis G80 trim and wheel position, because this model uses both single-size and staggered setups. After that, compare tire construction, brand, tire series, sidewall style, and any rim-width or load information that applies to the size being replaced.
The right choice depends on how the car is used and how the owner wants it to look. Blackwall performance radials suit a modern appearance, while RWL or redline options in select sizes create a more customized presentation. It also helps to verify whether only two tires are being replaced, since front and rear sizes on staggered G80 models are not interchangeable.
What sidewall styles are available for 2021 Genesis G80 tires?
Sidewall styles for the 2021 Genesis G80 include Blackwall, RWL, and Redline, depending on tire size. Blackwall options appear across the 19-inch and 20-inch performance sizes, while certain 18-inch and 20-inch Pro-Trac Street Pro III tires are available with either RWL or redline sidewalls.
That sidewall choice affects appearance more than fitment, so it should come after confirming the correct size and wheel diameter. A blackwall keeps the presentation more understated, while RWL or redline can give the G80 a more assertive custom look. The best approach is to match the sidewall style across an axle or full set so the car retains a consistent visual balance.
What brands offer tires for the 2021 Genesis G80?
Tires for the 2021 Genesis G80 are available from BFGoodrich, Nitto, and Pro-Trac across the applicable sizes. Depending on the fitment, the 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 be considered alongside the exact tire size and the role each tire plays on the car. Some sizes focus on blackwall performance-style offerings, while select sizes also open the door to RWL or redline presentation. Comparing series, sidewall treatment, and wheel-position fitment usually tells more than brand name alone when narrowing the choices.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2021 Genesis G80?
Yes, modifications can affect tire fitment on a 2021 Genesis G80, especially on versions that already use staggered 19-inch or 20-inch combinations. Aftermarket wheels, changes in wheel width, altered offset, suspension lowering, or body modifications can all change how much room the tire has at the fender, inner liner, and steering components.
A modified G80 should be checked by actual wheel and tire measurements rather than by size name alone. Even when the tire size matches the original specification, a different wheel can change the way that tire sits in the wheelwell. Clearance at full steering lock and through suspension travel matters most before committing to a replacement set.
What should I inspect before driving a 2021 Genesis G80 on new tires?
Before driving a 2021 Genesis G80 on new tires, inspect that each tire matches the correct size for its wheel position, is seated properly on the rim, and has appropriate inflation. It is also wise to look over the wheels for damage and make sure the front and rear tires are not accidentally mixed on staggered versions.
A short visual check can prevent larger issues on the road. Look for uneven spacing in the wheelwell, interference near suspension parts, and any signs of rubbing during steering movement. After the first miles, recheck pressure and inspect for unusual wear or air loss, especially if the car has sat for long periods or has recently changed wheels.
What should I check before a longer drive in a 2021 Genesis G80?
Before a longer drive in a 2021 Genesis G80, confirm tire pressure, tread condition, and the absence of cuts, bulges, or sidewall cracking. It also helps to verify that the car has the correct tire size at each wheel position, since several G80 configurations use staggered sizing and should not have front and rear tires mixed.
Longer trips place more importance on overall tire condition than a quick local drive. A G80 that sees infrequent use should also be checked for flat spotting or slow air loss before leaving. Looking over alignment wear, valve stems, and any signs of wheel damage adds another layer of confidence, particularly on low-profile 19-inch and 20-inch fitments.