2017 Genesis Tire Fitment Guide

2017 Genesis vehicles use five sizes across two models: 245/45R18, 245/40R19, and 275/35R19 for the G80, plus 245/45R19 and 275/40R19 for the G90. The 245/45R18 mounts on 18-inch wheels, while the other four sizes mount on 19-inch wheels. Rim width ranges by size where published: 245/45R18 fits roughly 7.5 to 9.0 inches, 245/40R19 fits 8.0 to 9.5 inches, 275/35R19 fits 9.0 to 11.0 inches, 245/45R19 fits 7.5 to 9.0 inches, and 275/40R19 fits from about 9.0 to 11.0 inches, with one product centered more narrowly around 9.0 to 9.5 inches.

The practical takeaway is that year and make alone are not enough for 2017 Genesis fitment. You need to confirm both the model and whether the car uses an 18-inch or 19-inch package, then match front and rear sizes correctly on staggered applications. If you are replacing only one axle, verify the size directly from the sidewall and compare wheel width before committing to a tire.

On a 2017 Genesis tire, 245/45R18 means the tire is 245 millimeters wide, the sidewall height is 45 percent of that width, and the tire fits an 18-inch wheel. The letter R identifies radial construction, which is the only construction used across the 2017 Genesis sizes here. For the G80, this size is the 18-inch fitment and uses products built for rim widths around 7.5 to 9.0 inches.

That code matters because it describes both the wheel diameter and the tire’s proportions. A 245/45R18 is not interchangeable with a 245/40R19 even though the section width is the same, because the wheel diameter and sidewall profile differ. If your G80 has the 18-inch package, staying with 245/45R18 preserves the intended fit without crossing into the 19-inch setup.

No, 2017 Genesis models do not share one universal tire size. The G80 uses either 245/45R18 or a staggered 19-inch combination of 245/40R19 front and 275/35R19 rear, while the G90 uses a different staggered 19-inch combination of 245/45R19 front and 275/40R19 rear. Even where two sizes share a 19-inch wheel diameter, the aspect ratio and overall fitment are different between the two models.

That difference is important because a G80 owner can easily assume that any 19-inch Genesis tire will work across the brand’s sedan range. In practice, the front and rear pairings are model-specific, and the larger G90 uses taller 19-inch sizes than the G80. The safest path is to confirm the model badge, check both front and rear sidewalls, and replace with the same size pairing unless you are intentionally reconfiguring the car with expert guidance.

2017 Genesis tires in these sizes are available in blackwall form across all five fitments. That suits the contemporary luxury-sport look Genesis used in 2017, where a clean black sidewall is the expected appearance rather than a wide whitewall or vintage-style side treatment. The look remains consistent whether you are fitting an 18-inch G80 package or one of the 19-inch staggered combinations used on the G80 or G90.

For most owners, that means the sidewall decision is straightforward and the real choice shifts to size, series, and speed rating. If visual originality matters, blackwall is entirely in character for a 2017 premium sedan. Once the appearance is settled, compare the exact front and rear size required for your car and choose a tire line that matches how the car will actually be driven.

BFGoodrich and Nitto cover the 2017 Genesis sizes here. BFGoodrich appears across all five sizes, while Nitto is available in 245/45R18, 275/35R19, 245/45R19, and 275/40R19. Within those sizes, BFGoodrich includes g-Force Comp 2 AS, g-Force Sport Comp 2, and g-Force Phenom T/A lines, while Nitto appears in the NT555 G2 line.

That gives 2017 Genesis owners a useful spread of recognizable modern performance-oriented options without changing away from the correct size family. The most important step is not choosing a brand first, but choosing the exact size for your model and axle position. After that, compare the available series within that size for details such as speed rating, load capacity, and approved rim-width range.

On 2017 Genesis fitments where both appear, the biggest hard-spec difference is often speed rating and load detail rather than basic construction, since both are radial blackwall performance tires. In 245/45R18, for example, g-Force Sport COMP-2 appears as a 96W tire with a 1,565-pound load figure at 51 psi, while g-Force Phenom T/A appears as a 100Y tire with a 1,764-pound load figure at 50 psi. Similar patterns appear in 245/40R19, 275/35R19, 245/45R19, and 275/40R19, where the Phenom T/A carries a Y rating and the Sport COMP-2 uses a W rating.

For a 2017 Genesis owner, that means the comparison should be made within the exact size your car requires rather than across the whole range. If two series fit the same size, check their speed letter, load figure, and approved rim-width range first, then decide which spec set better matches your intended use. Keeping the comparison size-specific avoids mixing front and rear requirements on staggered cars.

Rim width requirements for 2017 Genesis tires vary by size. The 245/45R18 works with rims around 7.5 to 9.0 inches wide, the 245/40R19 with 8.0 to 9.5 inches, the 275/35R19 with 9.0 to 11.0 inches, the 245/45R19 with 7.5 to 9.0 inches, and the 275/40R19 from about 9.0 to 11.0 inches, with one version centered at 9.0 to 9.5 inches. Those ranges reflect tire-specific approvals, not a blanket rule for every wheel carrying that nominal size.

That matters most if your 2017 Genesis has aftermarket wheels or if you are replacing tires after a previous owner changed the package. A correct sidewall size still needs to be paired with a wheel width the tire manufacturer approves. Before ordering, compare your actual wheel width to the approved range for the exact product you want, especially on the wider 275-section rear sizes.

The 2017 Genesis sizes here are modern radial fitments, and none of these products carry a tube-type marking. Their size designations and product character point to tubeless use on appropriate modern wheels. That matches what most buyers would expect on a 2017 luxury sedan using 18-inch and 19-inch radial performance tires rather than vintage multi-piece or tube-type wheel applications.

Even so, tire service should still include a close look at the valve stems and wheel sealing surfaces, because a tubeless setup relies on both. If your Genesis has been fitted with aftermarket wheels, confirm that the wheel itself is intended for tubeless radial tires and that the valve hardware is in good condition. That check is as important as choosing the right nominal size.

A 2017 Genesis should be stored away from direct sunlight, standing moisture, and ozone sources such as electric motors, welders, and running compressors. Keep the tires inflated to a normal maintained pressure, park on a clean surface, and move the car periodically if it sits for long stretches. Because all of these Genesis fitments are radial, they generally tolerate storage better than old bias-ply tires, but they still age from heat, ultraviolet exposure, and long static loading.

For an owner who drives the car seasonally, a little storage discipline goes a long way. If the car will sit for months, occasional rolling helps reduce temporary flat spotting and keeps one patch of sidewall from carrying the load continuously. It is also smart to keep tire dressings mild and non-petroleum-based, since preserving the rubber matters more than creating extra shine.

On a 2017 Genesis, tire age often matters more than mileage, especially if the car is lightly used. A sensible rule is to begin closer inspection around five to seven years of age and to treat about ten years from the DOT date code as a serious replacement point, even if the tread still looks usable. Heat cycles, storage conditions, and underinflation can shorten that timeline, while gentle use and climate-controlled storage can help preserve the tire.

That age-based approach is especially helpful for a low-mileage luxury sedan that may appear to have plenty of tread left. Check the DOT date code on every tire, including the spare if equipped, and do not assume all four were installed at the same time. If a tire is aging out, matching the exact front and rear sizes remains the priority on staggered G80 and G90 applications.

Tires on a 2017 Genesis should be inspected before every drive and more carefully before any extended trip. Look for sidewall cracking, cuts, bulges, punctures, irregular tread wear, and any sign that pressure is dropping between checks. Because these cars often use staggered sizes, inspect front and rear tires as separate pairs rather than assuming wear will look the same at all four corners.

A routine visual check catches many problems early, but a monthly hands-on inspection is worth adding if the car is driven regularly. Use an accurate gauge, note any repeated loss of pressure, and examine the inside shoulder when possible because that area can hide wear that is easy to miss at a quick glance. Keeping records helps spot alignment or suspension issues before they ruin an expensive set.

A 2017 Genesis G80 would have been fitted from new with modern radial tires, not bias-ply or vintage-style construction. Within the G80 range here, that means either 245/45R18 on the 18-inch package or a staggered 19-inch setup using 245/40R19 front and 275/35R19 rear. Blackwall appearance is also consistent with the period and the market position of the car.

For owners who want to keep the car visually and mechanically faithful to its original character, matching the exact wheel diameter and front-to-rear pairing is more important than chasing a single brand name. If you are confirming a specific trim or market package, compare your existing wheel and door-jamb information with the tire sidewalls and consult a Genesis specialist for final verification. That is the best way to avoid mixing the G80’s 18-inch and 19-inch applications.

Correct tire fitment does matter when showing a 2017 Genesis, even though it is a modern car rather than a brass-era or muscle-era restoration. Judges and knowledgeable enthusiasts will notice if a G80 or G90 is wearing the wrong wheel diameter, an incorrect front-to-rear stagger, or a sidewall style that does not suit the period. On a contemporary luxury sedan, keeping the profile and stance correct is a major part of preserving the car’s factory look.

That does not always mean one exact brand is mandatory, but it does mean the size relationship should be right. A G90 wearing G80-sized 19-inch tires, or a staggered car fitted with four identical sizes without careful planning, can look visibly off. For event-specific judging standards, check with the hosting organization or a marque-focused group so your tire choice supports the kind of presentation you want.

Where both lines overlap on 2017 Genesis sizes, the biggest visible commonality is that both are radial blackwall tires, but their published details are not identical. In 245/45R18, for example, the BFGoodrich g-Force COMP-2 A/S uses an approved rim width range of 7.5 to 9.0 inches and weighs about 28 pounds, while the Nitto NT555 G2 spans roughly 7.5 to 9.0 inches with a measured ideal point around 8.0 and weighs about 27.37 pounds. Similar brand overlap appears in 275/35R19, 245/45R19, and 275/40R19.

For a 2017 Genesis owner concerned with authenticity, either line still preserves the correct modern blackwall character as long as the exact size is right for the car. The more practical comparison is whether one product’s load figure, speed letter, or wheel-width approval better matches your wheel package and intended use. Keep the comparison on a size-by-size basis, because the G80 and G90 do not share the same front and rear dimensions.

Yes, the 2017 Genesis tires in these sizes are highway-capable modern radial designs, and their speed ratings are comfortably above ordinary U.S. highway use. W-rated versions are rated to 112 mph, and Y-rated versions are rated to 186+ mph. Those figures do not mean the car should be driven at those speeds, but they do show that the tire’s published capability exceeds normal interstate cruising by a wide margin.

Real-world safety depends just as much on condition, inflation, alignment, and proper size matching as on the speed letter itself. A fresh, correctly inflated W-rated tire in the right size is far safer than an aged or damaged higher-rated tire. Before highway use, make sure your 2017 Genesis has matching front and rear sizes for its model and that all four tires are free from damage and pressure loss.

Inflation pressure on a 2017 Genesis should start with the factory recommendation for your exact model and wheel package, then be checked against the tire manufacturer’s maximum load-and-pressure marking for the specific tire you choose. Published load figures here include 245/45R18 examples at 1,565 pounds at 51 psi and 1,764 pounds at 50 psi, 245/40R19 at 1,653 pounds at 50 psi, 245/45R19 at 1,874 pounds at 50 psi, 275/40R19 at 1,819 pounds at 51 psi and 2,039 pounds at 50 psi, and 275/35R19 at 1,764 pounds at 50 psi on one product.

Those numbers are tire capacity limits, not a universal setting for every Genesis application. Use the placard or owner’s manual for day-to-day inflation targets, because vehicle tuning and axle load matter as much as tire size. If you change tire series within the correct size, review the sidewall and manufacturer literature again rather than assuming one pressure carries over from another product.

Before taking a 2017 Genesis on a longer drive, inspect each tire for cracking, cuts, bulges, punctures, uneven wear, and any sign of impact damage on the sidewall. Verify pressures cold, confirm that front and rear tires are in the correct positions on staggered cars, and make sure the spare is usable if the car carries one. Since these cars use performance-oriented radial sizes, a quick look at tread depth across the full width of the tire is worthwhile as well.

That tire check should be part of a broader pre-trip routine that includes brakes, fluids, and suspension condition, especially on a premium sedan meant to cover distance comfortably. If the car has been parked for a long period, take a short local drive first and recheck pressures and ride feel before committing to highway miles. Catching a slow leak or early wear pattern at home is far easier than solving it on the road.