The 2019 Genesis G80 sits in the modern sport-luxury sedan class with a strong emphasis on quiet highway manners, poised handling, and upscale road presence. That balance matters when it is time to replace tires, because this car can use either a square 18-inch setup or a staggered 19-inch sport setup depending on the exact version. Primary fitment centers on radial tires in 245/45R18, 245/40R19, and 275/35R19 sizes. Available choices focus on blackwall performance-oriented radial lines from BFGoodrich and Nitto. The key is matching the exact sub-model and wheel position first, then choosing the tire series that best suits daily driving, sport use, and overall vehicle character.
Which Tire Size Is Right for The 2019 Genesis G80
The 2019 Genesis G80 uses three primary tire sizes, and the correct one depends on the exact sub-model and wheel position. The 3.8 uses a 245/45R18 on an 18-inch rim, while the sport-oriented 19-inch setup uses 245/40R19 in front and 275/35R19 in the rear. Before choosing a tire, confirm whether the car has the standard square setup or the staggered front-and-rear arrangement.
A 245/45R18 is a metric radial tire with a 245 millimeter section width, a 45-series aspect ratio, and fitment for an 18-inch rim. On the 2019 Genesis G80, this size belongs to the 3.8 and supports the car's standard non-staggered setup. Available choices include blackwall radials from BFGoodrich and Nitto across g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and NT555 G2 lines. This size is the right place to focus if the car retains its 18-inch wheels and calls for balanced luxury-sedan road manners with modern radial construction.
Fit(s): 3.8 Sport Front, 5.0 Front, and Sport 3.3T Front
Construction: Radial|Rim: 19 in
A 245/40R19 is a metric radial tire that uses a 245 millimeter section width, a shorter 40-series profile, and a 19-inch rim diameter. On the 2019 Genesis G80, this is the front tire size for the 3.8 Sport, 5.0, and Sport 3.3T staggered setups. Product choices stay within blackwall radial performance lines, including BFGoodrich g-Force Comp 2 AS, g-Force Sport Comp 2, and g-Force Phenom T/A. This size should be chosen only when confirming a 19-inch front wheel application, since it is part of a front-and-rear size pairing rather than a universal G80 fitment.
Fit(s): 3.8 Sport Rear, 5.0 Rear, and Sport 3.3T Rear
Construction: Radial|Rim: 19 in
A 275/35R19 is a metric radial tire with a wider 275 millimeter section width, a 35-series profile, and fitment for a 19-inch rim. On the 2019 Genesis G80, this size serves the rear position on staggered 19-inch applications such as the 3.8 Sport, 5.0, and Sport 3.3T. Blackwall options are available from BFGoodrich and Nitto in series such as g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and NT555 G2. This rear size matters most when preserving the intended staggered setup and confirming that the car still has matching 19-inch rear wheels.
Tire fitment on the 2019 Genesis G80 changes by sub-model, and some versions also split front and rear sizing. Identifying the exact model and wheel position is essential before selecting a replacement tire, especially when comparing the standard 18-inch setup with the staggered 19-inch sport arrangement.
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2019 Genesis G80 3.8
The 2019 Genesis G80 3.8 uses the 245/45R18 radial size on its 18-inch wheel setup. Tire selection here is mostly about comparing blackwall radial product lines and confirming the car has not been changed to a 19-inch wheel package.
The 2019 Genesis G80 3.8 Sport Front uses 245/40R19, making it the front half of the staggered sport setup. Choosing this size means confirming the front wheel position and matching it correctly with the wider 19-inch rear tire already used on the car.
The 2019 Genesis G80 3.8 Sport Rear uses 275/35R19 as the rear tire in the staggered 19-inch arrangement. Tire selection should keep the rear position in mind, since this wider size works as part of a matched front-and-rear setup rather than a single-size replacement.
The 2019 Genesis G80 5.0 Front uses the 245/40R19 radial size. Replacing this tire starts with confirming the 19-inch front wheel and then comparing the available blackwall performance-oriented series that match the front application.
The 2019 Genesis G80 5.0 Rear uses 275/35R19 on the rear axle. This calls for attention to wheel position and staggered-fitment consistency, especially if the car has seen wheel changes or if only two tires are being replaced at one time.
The 2019 Genesis G80 Sport 3.3T Front uses 245/40R19. The main selection question is not construction, since all primary options are radial, but choosing the right 19-inch front tire series for the car's existing wheel and handling setup.
The 2019 Genesis G80 Sport 3.3T Rear uses the wider 275/35R19 rear size. That makes rear tire choice especially important for maintaining the intended staggered layout and for checking wheel width and rear clearance if the car has been modified.
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 2019 Genesis G80 Tires for Sale
Available 2019 Genesis G80 tire choices center on blackwall radial performance lines from BFGoodrich and Nitto. Across the 18-inch and 19-inch sizes, the product grid lets you compare series such as g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and NT555 G2.
Owners of a 2019 Genesis G80 usually need clarity on exact tire size by sub-model, 18-inch versus 19-inch wheel fitment, staggered front-and-rear setups, and how to compare the available blackwall radial tire series before putting the car back on the road.
Tire Size & Fitment
What tire size fits a 2019 Genesis G80?
The 2019 Genesis G80 uses three primary tire sizes: 245/45R18, 245/40R19, and 275/35R19. The 3.8 uses 245/45R18, while the 3.8 Sport, 5.0, and Sport 3.3T use a staggered 19-inch setup with 245/40R19 in front and 275/35R19 in the rear.
The right choice depends on more than the model name alone. Start by confirming whether the car has the standard 18-inch square setup or the sport-oriented 19-inch staggered arrangement, then verify front versus rear position before ordering or mounting replacement tires.
What size rim does a 2019 Genesis G80 use?
A 2019 Genesis G80 uses either an 18-inch or 19-inch rim, depending on the sub-model and tire position. The 245/45R18 size uses an 18-inch rim, while both 245/40R19 and 275/35R19 use 19-inch rims on staggered-fitment versions.
Rim diameter is the first detail to verify because an 18-inch tire cannot be mounted on a 19-inch wheel, and the reverse is also true. On staggered cars, wheel width and front-to-rear placement also matter, so check the actual wheel setup if the car has aftermarket wheels.
Why does the 2019 Genesis G80 have more than one tire size?
The 2019 Genesis G80 has more than one tire size because different sub-models use different wheel and tire configurations. The standard 3.8 uses a single 245/45R18 size, while sport-oriented versions use a staggered 19-inch combination with 245/40R19 front tires and 275/35R19 rear tires.
That means tire selection starts with identifying the exact version of the car and whether the tire is for the front or rear axle. A quick check of the wheel diameter and the existing tire sizes on the vehicle helps prevent mixing standard and staggered-fitment components.
Choosing the Right Tire
What should I consider when choosing a tire for a 2019 Genesis G80?
Start with the correct size for the exact G80 setup: 245/45R18 for the 3.8, or 245/40R19 front and 275/35R19 rear for staggered 19-inch applications. All primary options are radial, so the next decisions are wheel compatibility, intended use, and which available tire series best matches the car.
Comparing rim-width suitability, tire series, weight, and max-load figures can be useful when several products share the same size. It also helps to decide whether the car is mainly used for commuting, long highway trips, or a more responsive sport-sedan feel before narrowing the choices.
What sidewall styles are available for 2019 Genesis G80 tires?
The available 2019 Genesis G80 tires in these fitment sizes use a blackwall sidewall style. That keeps the presentation clean and modern across the 18-inch and 19-inch radial options offered for the car's standard and staggered setups.
Since sidewall treatment does not vary here, the more important comparison points are tire series, brand, wheel-position fitment, and rim-width range. For most G80 owners, the visual decision is straightforward, and the practical decision becomes choosing the right blackwall radial for the car's exact configuration.
What brands offer tires for the 2019 Genesis G80?
BFGoodrich and Nitto offer tires for the 2019 Genesis G80 in the applicable 18-inch and 19-inch sizes. Depending on the size, the available choices include BFGoodrich g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and Nitto NT555 G2 product lines.
Brand alone should not drive the decision. It makes more sense to compare the exact size needed, the intended axle position on staggered cars, and the tire series characteristics that best suit how the G80 is driven and how closely it retains its original wheel setup.
Restoration & Appearance
Which tire should I choose for a period-style 2019 Genesis G80?
A period-style approach on a 2019 Genesis G80 usually means staying with the original size format and wheel diameter for the exact sub-model. That points to 245/45R18 on the 3.8 or the 245/40R19 front and 275/35R19 rear combination on the sport-oriented staggered applications.
Because the available options are blackwall radials, the visual presentation remains consistent with the G80's modern sport-luxury character. Owners who want the closest appearance to the car's original delivery condition should also confirm wheel design, stance, and any prior suspension or wheel changes before choosing tires.
Does correct tire fitment matter for a 2019 Genesis G80 restoration or preservation project?
Correct tire fitment matters on a 2019 Genesis G80 because the car's look and road manners depend on maintaining the intended wheel-and-tire relationship. Using the proper 18-inch or staggered 19-inch sizing helps preserve the sedan's proportions, especially on versions that rely on a wider rear tire.
Preservation-minded owners should treat size and wheel position as the foundation, then compare the available radial series within that fitment. If originality is especially important, it is wise to review window-sticker information, build records, or marque-specific references alongside the tire and wheel package already on the car.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2019 Genesis G80?
Yes, modifications can affect tire fitment on a 2019 Genesis G80. Aftermarket wheels, changed offsets, suspension lowering, and non-stock front-to-rear wheel widths can all alter how a 245/45R18, 245/40R19, or 275/35R19 tire sits in the wheelwell and clears nearby components.
A G80 that still uses its original wheel package is simpler to match than one that has been altered. Checking wheel diameter, wheel width, and clearance at full steering lock and normal suspension travel helps prevent choosing a tire that suits the size code but not the car's current setup.
What should I inspect before driving a 2019 Genesis G80 on new tires?
Before driving a 2019 Genesis G80 on new tires, inspect the wheels for damage, confirm the tire sizes match the exact front or rear application, and make sure each tire is seated properly and inflated to the vehicle's required pressure. Lug torque and general suspension condition also deserve attention.
A short road test should be followed by another quick check for vibration, rubbing, or unusual air loss. On staggered 19-inch cars, it is especially important to verify that the front 245/40R19 and rear 275/35R19 tires were not mixed during installation or rotation.
How often should tires on a 2019 Genesis G80 be inspected?
Tires on a 2019 Genesis G80 should be inspected regularly rather than only when tread looks low. Pressure, tread wear, cuts, bulges, and sidewall damage should be checked often, especially on a staggered setup where front and rear tires serve different roles and cannot always be rotated conventionally.
A monthly visual inspection is a sensible habit, and another check before a longer highway trip is worthwhile. Uneven wear can also point to alignment issues, suspension wear, or an incorrect wheel setup, so the tire condition can reveal problems that go beyond the tire itself.
