The 2021 Nissan Altima sits in the modern midsize sedan market as a car that balances everyday comfort with a sharper, more contemporary look than many family sedans. That matters when choosing tires, because wheel and tire fitment changes noticeably across the lineup. Depending on sub-model, a 2021 Nissan Altima uses 215/60R16, 215/55R17, or 235/40R19 radial tires, so the first step is confirming the exact trim and wheel diameter. Available choices here center on blackwall radial tires in BFGoodrich g-Force series applications. For owners focused on road manners, appearance, or replacing tires on factory-size wheels, the right decision starts with matching the Altima's exact sub-model and rim size.
Which Tire Size Is Right for The 2021 Nissan Altima
The 2021 Nissan Altima uses three primary tire sizes, and they vary by sub-model and wheel diameter. Before choosing a tire, confirm whether the car is equipped with 16-inch, 17-inch, or 19-inch wheels, then match that to the exact trim. Once size is confirmed, the decision shifts to comparing the available radial tire options within that fitment.
235/40R19 is a metric radial size in which 235 identifies the nominal section width in millimeters, 40 is the aspect ratio, R indicates radial construction, and 19 is the rim diameter in inches. On the 2021 Nissan Altima, this size supports trims that use a lower-profile 19-inch fitment. Available choices in this size include a BFGoodrich blackwall tire from the g-Force Phenom T/A series. This is the size to evaluate when the car is equipped with the larger factory-style wheel package and you want to preserve that overall stance and wheel-to-tire relationship.
215/55R17 is a metric radial size with a 215-millimeter nominal section width, a 55-series aspect ratio, radial construction, and a 17-inch rim diameter. It is one of the main 2021 Nissan Altima fitments and appears across several sub-models, making it an important size to verify carefully when replacing tires on a used car. In this size, BFGoodrich options include blackwall tires in the g-Force Comp 2 AS and g-Force Phenom T/A series. This fitment gives buyers a useful choice between available series while staying within the Altima's 17-inch wheel setup.
215/60R16 is a metric radial size where 215 is the nominal section width in millimeters, 60 is the aspect ratio, R marks radial construction, and 16 is the wheel diameter in inches. For the 2021 Nissan Altima, this size applies to certain S models using the 16-inch wheel fitment. The slightly taller sidewall profile makes wheel-diameter confirmation especially important, since it should not be confused with the 17-inch or 19-inch Altima setups. This is the fitment to match when maintaining the original 16-inch wheel package rather than moving to a different rim diameter.
Tire fitment on the 2021 Nissan Altima depends on the exact sub-model, and wheel diameter is a major part of that decision. Some trims share the same tire size, while others use a different size altogether, so confirming the specific Altima trim avoids ordering for the wrong wheel setup.
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2021 Nissan Altima Platinum
The 2021 Nissan Altima Platinum uses the 235/40R19 radial fitment. That makes wheel-diameter confirmation especially important, since this trim's lower-profile 19-inch setup should be matched to tires intended for that larger rim size.
The 2021 Nissan Altima S appears with either a 215/55R17 radial or a 215/60R16 radial setup. Tire selection on this trim starts with checking the actual wheels on the car rather than assuming every S model uses the same diameter.
The 2021 Nissan Altima SL uses the 215/55R17 radial size. For replacement, the focus is less about multiple fitments and more about choosing among the available 17-inch radial tire options for the intended ride and use.
The 2021 Nissan Altima SR uses the 235/40R19 radial fitment. Buyers replacing tires on an SR should stay centered on the 19-inch wheel package and compare options within that lower-profile size.
The 2021 Nissan Altima SV uses the 215/55R17 radial size. That keeps tire selection straightforward, with the main comparison being among the available 17-inch radial choices rather than sorting through multiple wheel diameters.
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 Nissan Altima Tires for Sale
Available 2021 Nissan Altima tire choices center on BFGoodrich radial blackwall tires, with g-Force Comp 2 AS and g-Force Phenom T/A series options in 215/55R17 and a g-Force Phenom T/A application in 235/40R19. Comparing series, rim-width compatibility, and load-related specs helps separate the choices.
These 2021 Nissan Altima tire FAQs focus on the exact sizes used by each sub-model, how wheel diameter affects fitment, and what to compare when choosing among the available radial tire options.
Tire Size & Fitment
What tire size fits a 2021 Nissan Altima?
The 2021 Nissan Altima uses three primary tire sizes: 215/60R16, 215/55R17, and 235/40R19. The correct size depends on the exact sub-model and wheel package, with S models appearing in either 16-inch or 17-inch fitment, while other trims are tied to one main size.
The most important step is checking the trim and the actual wheel diameter on the car before replacing tires. A used Altima may have different wheels than expected, and the right replacement tire needs to match both the vehicle's intended size and the rim diameter already in service.
What size rim does a 2021 Nissan Altima use?
A 2021 Nissan Altima uses 16-inch, 17-inch, or 19-inch rims depending on the sub-model. The 215/60R16 size mounts on a 16-inch rim, 215/55R17 mounts on a 17-inch rim, and 235/40R19 mounts on a 19-inch rim.
Rim diameter should be confirmed before looking at tread design, brand, or tire series. Even when overall tire height is relatively close across these Altima sizes, the bead diameter must match the wheel exactly, so the tire choice starts with the wheel itself rather than appearance alone.
Why does the 2021 Nissan Altima have more than one tire size?
The 2021 Nissan Altima has more than one tire size because different sub-models use different wheel packages. The lineup spans 16-inch, 17-inch, and 19-inch fitments, so tire size changes with the trim and the wheel diameter attached to that version of the car.
That means tire selection is not interchangeable across the full Altima range simply because the vehicles share the same model name. Trim level, existing wheel setup, and any prior wheel changes all matter, so it is smart to verify the tire sidewall and wheel size on the car before ordering replacements.
Choosing the Right Tire
What should I consider when choosing a 215/55R17 tire for a 2021 Nissan Altima?
For a 2021 Nissan Altima using 215/55R17 tires, start by confirming the car actually has the 17-inch wheel setup found on SL, SV, and some S models. Within that size, available BFGoodrich choices include blackwall radial tires from the g-Force Comp 2 AS and g-Force Phenom T/A series.
Once the size is confirmed, compare the tire series, load-related specification details where shown, and rim-width compatibility for the wheel on the car. That helps narrow the choice between available 17-inch options without drifting into a different Altima fitment that belongs on a 16-inch or 19-inch wheel.
What brands offer tires for the 2021 Nissan Altima?
The available tire options here for the 2021 Nissan Altima come from BFGoodrich. In the applicable Altima sizes shown, BFGoodrich appears in blackwall radial offerings across the g-Force Comp 2 AS and g-Force Phenom T/A series, depending on the exact tire size.
Brand alone should not be the only filter when replacing Altima tires. It still makes sense to confirm the correct size first, then compare the available series within that fitment, since a 215/55R17 Altima owner has different choices than someone replacing 235/40R19 tires on a Platinum or SR.
What tire series are available for the 2021 Nissan Altima?
The 2021 Nissan Altima applications shown here include BFGoodrich g-Force Comp 2 AS and g-Force Phenom T/A tire series. The 215/55R17 size has both series available, while the 235/40R19 size appears with a g-Force Phenom T/A application.
Series differences matter most after the correct size and wheel diameter are settled. A 17-inch Altima fitment gives more than one series to compare, while buyers in 19-inch fitment are working within a narrower set of choices, so the decision process changes depending on the trim and wheel package.
Restoration & Appearance
Does correct tire fitment matter for a 2021 Nissan Altima restoration or refurbishment?
Correct tire fitment matters on a 2021 Nissan Altima even in a clean refurbishment rather than a traditional vintage restoration. Using the proper 16-inch, 17-inch, or 19-inch size keeps the car visually balanced and maintains the wheel-to-sidewall relationship intended for that particular trim.
That is especially important when refreshing a late-model sedan for original-style presentation. Matching the right size to the actual wheel package helps avoid an off-proportion look, and keeping the sidewall profile appropriate to the trim makes the finished car look more coherent than a mismatched replacement choice would.
How does tire construction affect the appearance of a restored 2021 Nissan Altima?
On a 2021 Nissan Altima, tire construction is straightforward because the primary fitments are radial. That means appearance differences come less from bias-ply versus radial questions and more from staying with the correct modern metric size and sidewall profile for the wheel diameter used on the car.
A refurbishment-minded owner should focus on preserving the proper proportions of the original wheel package. A 235/40R19 Altima presents differently than one on 215/60R16 tires, so the visual result depends heavily on matching the exact trim's fitment rather than choosing a similar size on a different rim diameter.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2021 Nissan Altima?
Yes, modifications can affect tire fitment on a 2021 Nissan Altima. Wheel changes, different offsets, suspension lowering, or previous owner upgrades can alter the space available around the tire, even when the car started with one of the factory-style sizes such as 215/55R17 or 235/40R19.
That is why the current setup should be checked before choosing replacements, especially on a used Altima. Measure the actual wheel diameter and width, look at clearance near the strut and fender, and make sure the replacement size matches the wheel rather than assuming the car still carries its original configuration.
What should I inspect before driving a 2021 Nissan Altima on new tires?
Before driving a 2021 Nissan Altima on new tires, inspect the wheels for damage, confirm the tire size matches the rim diameter, and check that inflation pressure is set correctly for the installation. It also helps to look over the suspension and steering components for wear that could affect how the new tires track.
A quick road-use check should include watching for vibration, rubbing, unusual pull, or rapid air loss after installation. Keeping an eye on tread wear during the first several drives can also reveal alignment or wheel issues early, which is especially useful if the Altima has recently had wheel or suspension work.
How often should tires on a 2021 Nissan Altima be inspected?
Tires on a 2021 Nissan Altima should be inspected regularly, not only when replacement time arrives. Routine checks should look for tread wear, cracking, cuts, bulges, punctures, and any sign of pressure loss, especially if the car sees commuting duty, seasonal temperature swings, or longer highway trips.
A practical habit is to inspect them visually every few weeks and before longer drives. It is also smart to recheck after striking potholes or curbs, since an Altima with lower-profile 235/40R19 tires can be more sensitive to wheel and tire damage than one running a taller 16-inch fitment.
