2024 Genesis Tire Fitment Guide

2024 Genesis vehicles use eleven sizes across four sedan models: 245/45R19 and 275/40R19 for the Electrified G80 and some G80 applications; 225/40R19 and 255/35R19 for the G70; 245/50R18, 245/40R20, and 275/35R20 for additional G80 applications; and 245/45R20, 275/40R20, 245/40R21, and 275/35R21 for the G90. Rim diameters span 18, 19, 20, and 21 inches, and available rim-width ranges vary by size where tire manufacturers publish them.

That means year and make alone are not enough for a correct selection on a 2024 Genesis. You need the exact model and the exact wheel package, then you need to keep the proper front-to-rear pairing if your car uses a staggered setup. Checking the placard, the tire currently on the car, and the wheel diameter before choosing saves a lot of confusion, especially on G80 and G90 applications that can appear in more than one wheel size.

On a 2024 Genesis, 245/45R19 is a metric radial tire size. The 245 is the nominal section width in millimeters, 45 is the aspect ratio, R means radial construction, and 19 is the wheel diameter in inches. That size appears on the Electrified G80 and on certain G80 fitments, and the available products in this size use Blackwall styling with W- and Y-rated options.

The important practical point is that the code describes both the tire's proportions and the wheel it fits. A 245/45R19 must mount on a 19-inch wheel, and it should stay matched to the correct companion size on staggered applications rather than being mixed with another rear size just because the wheel diameter is the same. If your G80 or Electrified G80 wears 19s, this size is typically the narrower half of that package.

No, 2024 Genesis models do not use the same tire size. The G70 uses its own 19-inch staggered pair, the Electrified G80 shares a 19-inch pair with certain G80 versions, the G80 also appears with 18-inch and 20-inch options, and the G90 moves into 20-inch and 21-inch combinations. Even where two models share a size, the full year-and-make range is far from uniform.

That matters because the safest way to narrow a tire for a 2024 Genesis is by model first, then wheel diameter, then the exact front or rear size. Buyers sometimes assume one luxury sedan tire will cross over to another within the same brand family, but Genesis used distinct fitments to suit different chassis, trim, and wheel packages. Treat the door placard and the tire sidewall on the car as the final confirmation before moving forward.

Most 2024 Genesis sizes are available in Blackwall form, which matches the contemporary luxury-performance look these cars were designed around. A few sizes also open the door to alternate sidewall treatments: 245/50R18 comes in RWL and Redline form from Pro-Trac, while 245/40R20 and 275/35R20 are also available with RWL sidewalls. Those alternate styles appear only in certain G80-related sizes, not across the whole lineup.

For a modern Genesis sedan, Blackwall is the natural visual choice if you want to stay close to the factory-era appearance. RWL and Redline options are more of a styling decision than an authenticity requirement on a 2024 luxury car, so the key is making sure the sidewall look matches your goals before you settle on a product. On a G80 with 18- or 20-inch fitments, those choices create a much more customized appearance than the standard Blackwall tires.

2024 Genesis tire coverage includes BFGoodrich, Nitto, Pro-Trac, and M&H Racemaster, depending on size. BFGoodrich appears across most of the 19-inch and 20-inch fitments, Nitto is present in several of those same performance-oriented sizes, Pro-Trac appears in 245/50R18, 245/40R20, and 275/35R20, and M&H Racemaster appears in 275/40R20. Brand choice is not identical from one Genesis model and wheel package to another.

That means the right brand question starts with the size on your car, not with the model name alone. A G70 owner on 19s will see a narrower brand mix than a G80 or G90 owner in some 20-inch sizes, and sidewall style options also shift by size. If you are comparing products, focus on the exact size first, then compare speed rating, sidewall style, and any published rim-width guidance within that size.

For several 2024 Genesis sizes, BFGoodrich offers both g-Force Comp 2 A/S and g-Force Phenom T/A, and the most visible difference is in the speed rating and some published load details. In 245/45R19, 245/40R20, 275/35R20, and 245/45R20, the g-Force Phenom T/A carries a Y speed rating while the g-Force Comp 2 A/S carries a W rating, and Phenom examples also publish max load figures such as 1,874 pounds at 50 psi in 245/45R19 and 1,929 pounds at 50 psi in 245/45R20.

That does not automatically make one the right answer for every 2024 Genesis owner, but it does give you a concrete way to compare products within the same size. If your priority is matching the size correctly and staying within the tire's published service envelope, compare the exact speed symbol, load figure when available, and rim-width range instead of choosing by series name alone. Those details matter more than broad assumptions about a brand line.

Published rim-width ranges for 2024 Genesis tire sizes vary by size. Examples include 7.5 to 9.0 inches for 245/45R19, 9.0 to 11.0 inches for 275/40R19, 7.5 to 9.0 inches for 225/40R19, 8.5 to 10.0 inches for 255/35R19, 8.0 to 9.5 inches for 245/40R20, 9.0 to 11.0 inches for 275/35R20, 7.5 to 9.0 inches for 245/45R20, and 9 to 11 inches or a single 9-inch fitment for certain 275/40R20 products.

Those ranges show why wheel diameter alone is not enough. Two 20-inch tires may both mount on a 20-inch wheel, yet require very different wheel widths for proper support and sidewall shape. Before choosing a replacement for a 2024 Genesis, compare the actual wheel width on the car against the published range for the exact tire size and product you want, especially on staggered rear sizes where width requirements increase.

The available 2024 Genesis products are modern radial designs and do not show tube-type markings. One 245/45R20 BFGoodrich size includes a TL marking, which is a tubeless designation, and the rest follow the same modern low-profile radial pattern even when that marking is not repeated in the size string. Nothing in these Genesis sizes suggests a tube-type application.

For practical use, that means a 2024 Genesis owner should think in terms of tubeless tire service on modern wheels, with the condition of the valve stem and wheel bead seat being just as important as the tire itself. If a wheel has curb damage, corrosion, or previous repair work around the bead area, address that before mounting a fresh set. Air retention issues on a modern Genesis are much more likely to come from the wheel or valve hardware than from any tube requirement.

Original 2024 Genesis wheels can only be used with the tire sizes that match their diameter and width requirements. The lineup spans 18-, 19-, 20-, and 21-inch wheels, so there is no single wheel that works across every Genesis model and every size used in 2024. Even within the same diameter, front and rear sizes differ on staggered applications.

That means an original G70 19-inch wheel cannot simply take a G90 20- or 21-inch tire, and a G80 wheel package needs to be matched to its specific 18-, 19-, or 20-inch fitment. Where tire makers publish rim-width ranges, those numbers should be checked against the actual wheel on the car before swapping to another product in the same nominal size. Staying within both diameter and wheel-width limits is the key step.

A stored 2024 Genesis should be kept out of direct sunlight, away from electric motors, battery chargers, welders, and other ozone sources, and parked on a clean, dry surface. Maintain the tires at the correct cold pressure for storage, keep the car away from standing moisture, and if the car will sit for long periods, move it occasionally to change the contact patch. These are all radial tires, so they generally tolerate storage better than older bias-ply designs, but age and environment still matter.

The practical goal is to reduce sidewall weathering, pressure loss, and static stress while the car sits. If a 2024 Genesis is stored seasonally or as a second vehicle, a quick monthly pressure check and periodic movement can do more to preserve the tires than low annual mileage alone. On long-term storage cars, many owners also use clean tire cradles or stands, but the basics of cool, dark, dry storage remain the most important part.

On a low-use 2024 Genesis, tire age is often as important as tread depth. A good rule is to begin evaluating tires closely once they reach about five to seven years of service, and to treat around ten years from the DOT date code as a serious replacement threshold even if the tread still looks usable. Heat cycles, climate, storage conditions, and inflation history can shorten that timeline.

That matters because many luxury and performance sedans accumulate mileage slowly, especially second or third vehicles. A 2024 Genesis can still wear tires that look presentable while the rubber has hardened or begun to crack with age. Use the DOT date code, not just mileage, as part of your decision, and inspect all four road tires plus the spare or inflator setup before assuming the car is ready for regular use.

Tires on a 2024 Genesis should be inspected before every drive in a quick walkaround and more carefully before any extended trip. Look for cuts, bulges, sidewall cracking, uneven tread wear, punctures, and pressure loss, and pay attention to whether the car has been parked long enough to develop flat spotting or low-pressure warnings. Modern low-profile radial tires can also show wheel-damage-related issues at the bead if the car has hit potholes or curbs.

A more complete inspection every few months is a smart routine even on a newer car. That is especially true on staggered Genesis applications, because you cannot rotate front-to-rear in the usual way and may miss developing wear differences if you only glance at one axle. Frequent checks help you catch alignment problems, underinflation, or impact damage before they turn into a much more expensive problem.

The available 2024 Genesis tires are modern radials, and many carry W or Y speed ratings depending on the exact size and product. W is rated to 168 mph and Y is rated to 186 mph, while some sizes such as 225/40R19 show W-rated coverage only in the available products. Those speed symbols are well beyond ordinary highway speeds, so in normal use the vehicle's alignment, braking condition, suspension health, and tire age are usually more important than the headline speed ceiling.

The real safety question for a 2024 Genesis is not whether the tire can survive legal highway speeds in the abstract, but whether the exact tire on the car is the correct size, properly inflated, undamaged, and matched as a front-rear pair where the car is staggered. If you are comparing products in a shared size, the speed symbol is worth noting, but condition and correct application should come first.

Inflation pressure for a 2024 Genesis should start with the factory placard or owner's manual for the exact model and wheel package, because the car's recommended operating pressure is vehicle-specific. Some available tires also publish maximum load and pressure figures, such as 1,874 pounds at 50 psi for one 245/45R19, 2,039 pounds at 50 psi for one 275/40R19, 1,709 pounds at 50 psi for one 245/40R20, and 1,929 pounds at 50 psi for one 245/45R20. Those are tire capacity references, not a blanket everyday inflation setting.

In practice, do not transfer a pressure figure from one Genesis size to another or from one axle to another without checking the car's own recommendation. A staggered luxury sedan can call for different front and rear pressures, and tire makers' max-pressure figures are there to define the tire's rated load relationship rather than to replace the automaker's baseline setting. Set pressures cold and recheck them when seasons change.

Before a longer drive in a 2024 Genesis, inspect all four tires for cracking, cuts, punctures, bulges, abnormal shoulder wear, and correct cold inflation pressure. Check that the front and rear sizes match the car's staggered layout, confirm the valve stems are sound, and look over the wheels for bends or impact damage that could affect sealing and balance. If the car has sat for a while, pay attention to any vibration that suggests flat spotting or pressure loss.

Tires are only one part of the pre-trip routine, but they are the only part touching the road. A quick check of alignment feel, brake response, and any warning lights during the first few miles can reveal problems that were not obvious while the car was parked. On a 2024 Genesis with low-profile tires, catching a damaged sidewall or bent wheel before a highway run is especially worthwhile.