2021 Maserati Tire Fitment Guide

2021 Maserati vehicles use six sizes across the Ghibli and Quattroporte: 245/35R21, 245/40R20, 245/45R19, 275/40R19, 285/30R21, and 285/35R20. Both models share that same overall size range. The sizes span three rim diameters—19, 20, and 21 inches—and the rim-width guidance available within the product range includes 7.5 to 9 inches for 245/45R19, 8 to 9.5 inches for 245/40R20, 9 to 11 inches for 275/40R19, and 9.5 to 11 inches for 285/35R20.

That means year and make alone are not enough to choose a tire. Start by checking the exact size on the current tire and confirming whether the car has a 19-, 20-, or 21-inch wheel package. On cars with staggered fitments, front and rear sizes differ, so matching both axle positions correctly is more important than simply choosing any size used somewhere in the 2021 Maserati range.

On a 2021 Maserati, 245/40R20 is a metric radial size. The 245 is the nominal section width in millimeters, 40 is the aspect ratio, R identifies radial construction, and 20 is the wheel diameter in inches. In the available product range, this size appears with W and Y speed ratings depending on the tire, and sidewall choices include both Blackwall and raised white letter versions.

That code matters because it tells you far more than width alone. A 245/40R20 is built for a 20-inch wheel and should not be treated as interchangeable with a 245/45R19 or 245/35R21 simply because the first number matches. If your car already wears 20-inch wheels, this size keeps the intended diameter relationship and profile that Maserati engineered into that particular wheel package.

Both 2021 Maserati models covered here—the Ghibli and Quattroporte—share the same six tire sizes across the model year. That does not mean every individual car uses all six sizes at once. It means Maserati used the same family of 19-, 20-, and 21-inch fitments across both sedan lines, with different wheel packages and front-to-rear combinations depending on the car’s setup.

For a buyer, that creates confidence at the year-and-make level but still calls for a quick verification step. Check the current sidewall marking or the factory placard and confirm whether your car is on a 19-inch, 20-inch, or 21-inch package. Once that is settled, you can narrow the right size quickly without worrying that the Ghibli and Quattroporte require completely different tire families.

2021 Maserati tire options include Blackwall styling across 245/40R20, 245/45R19, 275/40R19, and 285/35R20, while raised white letter styling appears in 245/40R20 and 285/35R20. The 19-inch product range stays entirely Blackwall, while some 20-inch choices add a more aggressive visual treatment. All of these are modern radial tires, so the sidewall decision is mainly about appearance rather than choosing between old and new construction types.

Most owners seeking a factory-like late-model luxury-performance look will gravitate toward Blackwall tires, since that is the cleanest and most typical presentation for a 2021 Maserati sedan. Raised white letter tires create a more overt performance look and may appeal to buyers customizing the car’s appearance. Choose the sidewall style only after the exact size is confirmed, since the available visual options change from one tire size to another.

BFGoodrich, Nitto, and Pro-Trac all cover portions of the 2021 Maserati size range shown here. BFGoodrich appears in 245/40R20, 245/45R19, 275/40R19, and 285/35R20. Nitto appears in those same four sizes, while Pro-Trac appears in 245/40R20 and 285/35R20. The 21-inch sizes do not show a product range here, so the broadest brand overlap is concentrated in the 19- and 20-inch applications.

That gives buyers a useful mix of choices, but the best approach is to compare brand coverage size by size rather than assume every brand makes every Maserati fitment. If your car uses 19-inch or 20-inch wheels, you have the most room to compare. If it uses a 21-inch package, verify the exact size first and then narrow product options around that specific front or rear application.

In 245/45R19 for a 2021 Maserati, BFGoodrich appears in both g-Force Comp 2 A/S and g-Force Phenom T/A versions, while Nitto appears in the NT555 G2. All are Blackwall radial tires. Speed ratings vary from W to Y within this size, and the BFGoodrich g-Force Phenom T/A carries a stated maximum load capacity of 1,874 pounds at 50 psi. Rim-width guidance for the BFGoodrich options falls in the 7.5- to 9-inch range.

The practical difference is that even within one exact Maserati size, tire series details are not identical. Some buyers may focus on matching the higher speed-rating marking, while others may care more about load information or staying within a known wheel-width range. Comparing those details is worthwhile once you have confirmed that 245/45R19 is your front fitment, since the distinctions inside the size can matter as much as the size code itself.

Rim-width guidance varies by size on 2021 Maserati applications. For 245/45R19, the range is 7.5 to 9 inches. For 245/40R20, the range is 8 to 9.5 inches. For 275/40R19, the range spans 9 to 11 inches depending on the tire, and for 285/35R20, the available guidance reaches 9.5 to 11 inches. Those figures are tied to the tire itself, so the same car may use different approved widths front to rear.

That is why wheel confirmation should happen before a tire is selected, especially on staggered Maserati setups. If your wheel width sits near the edge of a tire’s approved range, compare the exact tire you are considering rather than assuming every product in that size shares the same tolerance. Staying inside the approved width range helps preserve intended tread shape, response, and wear behavior.

2021 Maserati tires in these sizes are modern radial products, and one 285/35R20 BFGoodrich version is explicitly marked TL for tubeless use. Other products do not all carry the same marking in the size string, so tube status can vary by product rather than being treated as one blanket answer across every option. None of these fitments should be assumed tube-type in the way many vintage applications are.

For a modern Maserati wheel, the safe approach is to confirm the exact sidewall marking on the tire you are considering and make sure it matches the wheel’s intended service type. That extra check becomes especially important when comparing multiple brands or series within the same size, because one product may spell out its tubeless marking while another relies on standard modern construction conventions.

Original 2021 Maserati wheels cannot be treated as universal across all six tire sizes because the fitments span three different rim diameters: 19, 20, and 21 inches. A 19-inch wheel only accepts the 19-inch sizes, a 20-inch wheel only accepts the 20-inch sizes, and a 21-inch wheel only accepts the 21-inch sizes. Even within the same diameter, front and rear widths may differ enough to affect which tire sizes are appropriate.

That means original wheels can usually continue in service only when the replacement tire matches the wheel diameter and falls within the correct approved width range for that wheel position. Buyers should think in terms of keeping the car’s existing wheel package intact, not mixing any Maserati size onto any Maserati wheel. A quick check of both sidewall size and wheel diameter prevents expensive mistakes.

A stored 2021 Maserati should be kept in a cool, dry space away from direct sunlight, electric motors, welders, furnaces, and other ozone sources that can age rubber prematurely. Keep the tires properly inflated, avoid leaving the car parked on wet surfaces, and move it periodically if practical so the same footprint is not carrying the load month after month. Modern radial tires resist flat-spotting better than older bias-ply designs, but long static storage can still affect ride quality and pressure retention.

For seasonal or collector use, many owners also clean the tires gently and place the car on a smooth, clean surface or use stands if the storage period will be extended. The goal is to reduce stress, UV exposure, and moisture while preserving the tread and sidewall shape. Before returning the car to regular use, inspect for cracking, bulges, punctures, and any pressure loss that developed during storage.

On a 2021 Maserati, tire age often matters as much as tread wear, especially if the car is driven infrequently. A good collector and enthusiast rule is to begin evaluating tires closely around five to seven years of age and to treat about ten years as the outer limit for serious replacement consideration, regardless of remaining tread. The DOT date code on the sidewall is the best reference point for tire age.

That approach is more useful than trying to judge only by mileage, because low-use luxury-performance cars can keep tread for a long time while the rubber still hardens with age. Heat cycles, storage conditions, and exposure to sun or ozone all matter. If the tires feel hard, show surface cracking, or have an unknown age history, replacement should move higher on the priority list even if the tread still looks respectable.

Tires on a 2021 Maserati deserve a quick inspection before every drive and a more careful inspection before any extended outing. Check inflation pressure, tread wear pattern, sidewall condition, punctures, and any signs of impact damage from potholes or road hazards. On staggered applications, inspect both front and rear sizes separately rather than assuming they will wear at the same rate or show the same symptoms.

A regular inspection routine helps catch issues early, especially on cars that alternate between daily use and long parked periods. Pay attention to vibration, steering pull, or uneven shoulder wear, since those can point to alignment or inflation issues before the tire becomes visibly damaged. It is also wise to inspect the spare if the car carries one, because emergency readiness matters just as much as the four tires on the ground.

Yes, the 2021 Maserati tire sizes shown here are modern radial fitments suitable for highway use when the tires are in good condition, properly inflated, and matched to the car’s correct wheel package. Where speed ratings appear, they include W and Y markings, with ceilings of 168 mph and 186-plus mph depending on the product. Those ratings are comfortably above normal U.S. highway speeds, though they should never be treated as permission to exceed legal limits or ignore the vehicle’s broader condition.

In real use, the bigger safety factor is often the overall state of the car rather than the maximum speed capability printed on the tire. Alignment, suspension condition, brake health, and tire age all affect how confidently a Maserati sedan behaves at speed. Choose a tire that matches the car’s exact size and intended use, then keep it maintained properly instead of focusing only on the highest speed letter available.

Inflation pressure on a 2021 Maserati should follow the vehicle’s factory placard or owner’s manual for normal service, because each wheel package and axle position may call for a different target. Some tire options also publish load-and-pressure figures, such as 1,709 pounds at 50 psi for one 245/40R20 application, 1,874 pounds at 50 psi for one 245/45R19 application, 1,819 at 51 psi and 2,039 pounds at 50 psi for certain 275/40R19 applications. Those are tire capacity ratings, not universal set-and-forget operating pressures.

That distinction matters because copying the maximum pressure figure from the sidewall or from one tire size to another can lead to an overinflated or poorly balanced setup. Use Maserati’s recommended cold pressure as the starting point for your exact front and rear sizes, then compare it with the tire manufacturer’s guidance for the product you chose. Pressure should always be checked cold and rechecked whenever ambient temperatures change significantly.

Before a longer trip in a 2021 Maserati, inspect each tire for cracks, cuts, bulges, punctures, uneven wear, and proper cold inflation pressure. Confirm that the front and rear sizes are correct for the car’s wheel package, especially on staggered setups where the rear tire is wider than the front. Also check tread depth, valve stems, and the condition of the spare or inflator equipment if the car carries them.

A tire check should be part of a broader pre-drive routine on any performance-luxury sedan. Wheel torque, alignment symptoms, brake feel, and suspension noises deserve attention before the trip starts, since tire behavior is closely tied to the condition of the surrounding chassis. Taking a few minutes to confirm size, pressure, and general tire health can prevent avoidable problems once the drive is underway.