The 2020 Subaru BRZ sits firmly in the modern lightweight sports-car tradition, with a chassis and driving balance that make tire choice especially important to how the car feels on the road. For this exact model year, fitment centers on two radial sizes: 215/45R17 and 215/40R18, depending on the specific BRZ configuration. That means the first decision is confirming whether the car is on its 17-inch or 18-inch wheel setup, then comparing the available tires within that size. With blackwall performance-oriented radial options available, the focus shifts to matching the tire to the car's trim, wheel package, and intended street use.
Which Tire Size Is Right for The 2020 Subaru BRZ
The 2020 Subaru BRZ uses two primary tire sizes, and the correct one depends on the exact sub-model and wheel diameter. Both are metric radial sizes, but one fits a 17-inch rim and the other fits an 18-inch rim, so confirming the car's wheel setup is the first step before comparing tire series, load specs, and other product details.
215/45R17 is a metric radial size in which 215 is the section width in millimeters, 45 is the aspect ratio, R identifies radial construction, and 17 is the rim diameter in inches. On the 2020 Subaru BRZ, this size supports the 17-inch wheel fitment used on certain sub-models and keeps the selection in a modern performance-oriented radial format. Available choices in this size include several BFGoodrich g-Force series tires, all in blackwall styling. It is the size to evaluate when the car retains its 17-inch wheels and the goal is to compare series characteristics within that fitment.
215/40R18 is also a metric radial size, with the same 215-millimeter section width but a shorter 40-series profile paired with an 18-inch rim. For the 2020 Subaru BRZ, this size is tied to the 18-inch wheel configuration rather than the 17-inch setup, so wheel diameter must be confirmed before selection. The available product choice here is a BFGoodrich g-Force Sport Comp 2 blackwall radial, giving the car a low-profile performance tire in the correct size family. This is the fitment to review when the BRZ is equipped with its 18-inch package and tire clearance remains stock.
Sub-model fitment matters on the 2020 Subaru BRZ because tire size changes with the wheel package. The Limited and Limited w/Performance Pkg. share the same 17-inch fitment, while the tS moves to a different 18-inch tire size, so identifying the exact trim is the key first step.
1
2020 Subaru BRZ Limited
The 2020 Subaru BRZ Limited uses the 215/45R17 radial size on a 17-inch wheel setup. That keeps tire selection focused on comparing available blackwall performance radials in the correct size rather than sorting through multiple fitment paths.
The 2020 Subaru BRZ Limited w/Performance Pkg. also uses the 215/45R17 radial fitment. Tire choice here is mainly about selecting among the available 17-inch product series and confirming that the car still has the wheel setup intended for this size.
The 2020 Subaru BRZ tS uses the 215/40R18 radial size, which separates it from the 17-inch BRZ sub-models. That makes wheel diameter especially important when replacing tires, since the lower-profile 18-inch fitment should be matched to the tS wheel package before moving forward.
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 2020 Subaru BRZ Tires for Sale
Available 2020 Subaru BRZ tires center on the 215/45R17 and 215/40R18 radial sizes, with BFGoodrich options across the g-Force Sport Comp 2, g-Force Comp 2 AS, and g-Force Phenom T/A series. All current choices use blackwall styling, with rim-width compatibility varying slightly by size and model.
These 2020 Subaru BRZ tire FAQs focus on the two correct sizes, 17-inch versus 18-inch wheel fitment, product differences within each size, and the checks worth making before putting a BRZ back into regular road use.
Tire Size & Fitment
What tire size fits a 2020 Subaru BRZ?
A 2020 Subaru BRZ uses one of two radial tire sizes: 215/45R17 or 215/40R18. The Limited and Limited w/Performance Pkg. use 215/45R17, while the BRZ tS uses 215/40R18. Both are modern metric radial sizes, but they are tied to different wheel diameters and should not be treated as the same fitment.
The most important step is confirming which sub-model and wheel package the car actually has before choosing tires. A BRZ that has been changed from its original wheel setup may need a closer check of wheel diameter, wheel width, and clearance at the fenders and suspension before a replacement tire is selected.
What size rim does a 2020 Subaru BRZ use?
The 2020 Subaru BRZ uses either a 17-inch or 18-inch rim, depending on sub-model. The 215/45R17 fitment is built for a 17-inch wheel, and the 215/40R18 fitment is built for an 18-inch wheel. That rim diameter difference is the clearest dividing line between the two primary tire sizes used on this model year.
Checking the actual wheel on the car matters more than assuming by trim name alone, especially if the BRZ has seen aftermarket changes. Tire size must match wheel diameter exactly, and wheel width should also be reviewed against the tire's recommended range so the final setup maintains proper support and clearance.
Do all 2020 Subaru BRZ sub-models use the same tire size?
No, the 2020 Subaru BRZ does not use the same tire size across every sub-model. The Limited and Limited w/Performance Pkg. share 215/45R17, while the tS uses 215/40R18. Both are radial sizes, but they belong to different wheel diameters and represent two distinct fitment paths within the same model year.
That difference means tire replacement starts with identifying the exact BRZ trim and confirming the wheels currently on the car. If the car still has its original-style wheel package, the choice becomes straightforward. If the wheels have been changed, it is smart to verify diameter, width, and any clearance changes before ordering replacement tires.
Choosing the Right Tire
What should I consider when choosing a 215/45R17 tire for a 2020 Subaru BRZ?
For a 2020 Subaru BRZ that uses 215/45R17, the starting point is staying with the correct size and confirming the tire suits a 17-inch wheel. Available options in this fitment include BFGoodrich tires from the g-Force Sport Comp 2, g-Force Comp 2 AS, and g-Force Phenom T/A series, all in blackwall form.
Once size is confirmed, compare the tire series, load specification where shown, and the wheel-width range for the wheel already on the car. A BRZ used mainly for weekend driving may point the buyer one way, while a car that sees more routine road miles may favor a different series within the same correct fitment.
What brands offer tires for the 2020 Subaru BRZ?
Current product choices for the 2020 Subaru BRZ in these exact fitments come from BFGoodrich. The 215/45R17 size is available in multiple BFGoodrich g-Force series, while the 215/40R18 size is available in a BFGoodrich g-Force Sport Comp 2 configuration. That keeps the brand selection simple, but still leaves meaningful differences by tire series and wheel size.
Because both BRZ fitments are performance-oriented radial sizes, brand alone should not be the only comparison point. It makes more sense to confirm the correct size first, then compare the series within that fitment, along with wheel-width compatibility and the intended use of the car on regular street driving.
What tire series are available for the 2020 Subaru BRZ?
The 2020 Subaru BRZ fitments here are available in several BFGoodrich series, including g-Force Sport Comp 2, g-Force Comp 2 AS, and g-Force Phenom T/A. The 215/45R17 size has the widest series choice, while the 215/40R18 size is represented by the g-Force Sport Comp 2. All are radial blackwall tires built around modern performance sizing.
Series differences matter because they shape the comparison once the correct size is established. On a BRZ, that means looking at the specific 17-inch or 18-inch fitment first, then narrowing the choice by the tire line that best matches how the car is driven and how closely the wheel dimensions align with the tire's range.
Restoration & Appearance
Which tire should I choose for a period-style 2020 Subaru BRZ?
A 2020 Subaru BRZ is a modern sports coupe, so a period-style presentation still starts with the correct contemporary radial size for the exact sub-model. That means 215/45R17 for the Limited and Limited w/Performance Pkg., or 215/40R18 for the tS. Staying with the correct wheel diameter and low-profile metric sizing preserves the car's intended visual balance.
Appearance choice on this BRZ fitment is less about whitewalls or vintage sidewall treatments and more about keeping the tire size and stance appropriate to the trim. A car that has been altered with different wheels or suspension may lose that visual proportion, so checking overall setup matters as much as choosing the tire itself.
Does correct tire fitment matter for a 2020 Subaru BRZ restoration?
Yes, correct tire fitment matters on a 2020 Subaru BRZ because the car's proportions and handling character are closely tied to its wheel-and-tire package. Using the proper 215/45R17 or 215/40R18 size helps keep the car aligned with the trim-specific setup, rather than blending 17-inch and 18-inch fitments as though they were interchangeable.
On a newer collector car, restoration-minded tire selection usually means preserving the right size, wheel diameter, and overall presentation for the specific version of the car. When exact originality becomes the goal, trim-specific references and marque documentation are worth consulting, especially if the BRZ has had wheels or suspension components changed over time.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2020 Subaru BRZ?
Yes, modifications can affect tire fitment on a 2020 Subaru BRZ even when the tire size itself looks correct at a glance. Aftermarket wheels, changes in wheel width, altered offset, lowering, and suspension changes can all influence whether a 215/45R17 or 215/40R18 tire clears properly through steering and suspension travel.
A BRZ with any non-stock wheel or suspension setup should be checked carefully before replacement tires are chosen. Tire size must match the wheel diameter, but that is only part of the picture. Clearance at the fenders, inside suspension area, and full steering lock should all be reviewed, especially on the lower-profile 18-inch setup.
What should I inspect before driving a 2020 Subaru BRZ on new tires?
Before driving a 2020 Subaru BRZ on new tires, inspect the wheels for damage, confirm the tire size matches the wheel diameter, and make sure inflation is set correctly for the installed tires. It is also wise to check for uneven suspension wear, alignment issues, and any signs that the old tires were rubbing or wearing abnormally.
A short road test should follow with attention to vibration, pull, or unexpected contact during turning and compression. Sports cars like the BRZ respond noticeably to tire and wheel issues, so catching a clearance problem or mounting mismatch early is far better than discovering it after regular use or a longer highway drive.
How often should tires on a 2020 Subaru BRZ be inspected?
Tires on a 2020 Subaru BRZ should be inspected regularly, not just when tread appears low. Pressure, tread wear, cuts, punctures, sidewall damage, and uneven wear patterns are all worth checking often, especially on a car with low-profile performance tires. A quick visual inspection before longer drives is a sensible habit.
Even a BRZ that is driven less often can develop tire issues from age, air loss, or storage conditions. Cars that sit for long periods should have their tires checked for flat spotting, cracking, and pressure loss before returning to the road. Frequent inspection helps protect both handling feel and overall road confidence.
