The 2020 Mazda 6 sits in the late chapter of Mazda’s midsize sedan development, blending sharp styling with a more driver-focused feel than many family sedans in its class. That makes tire choice especially important, because the right setup affects not only ride quality but also the car’s road manners and overall presentation. This model uses radial tires in two primary sizes, with 225/45R19 on several upper trims and 225/55R17 on the Sport. Available choices range from performance-oriented blackwall radials to Silvertown Radial whitewall and redline options in 225/55R17, so the best match depends on your trim, wheel diameter, and the look you want.
Which Tire Size Is Right for The 2020 Mazda 6
The 2020 Mazda 6 uses two primary tire sizes, and the correct one depends first on the exact sub-model and wheel diameter. Several trims use 225/45R19 on a 19-inch rim, while the Sport uses 225/55R17 on a 17-inch rim. Before comparing tire series or sidewall styles, confirm which trim you have and make sure the car still wears the correct wheel size.
Fit(s): Grand Touring, Grand Touring Reserve, Signature, and Touring
Construction: Radial|Rim: 19 in
225/45R19 is a metric radial size where 225 identifies the nominal section width in millimeters, 45 is the aspect ratio, R indicates radial construction, and 19 is the wheel diameter in inches. On the 2020 Mazda 6, this size serves several upper trims and supports the car’s more modern, low-profile tire presentation. Available choices here center on BFGoodrich blackwall performance-oriented series such as g-Force Comp 2 AS, g-Force Sport Comp 2, and g-Force Phenom T/A. This size is the right path when your Mazda 6 has the 19-inch wheel setup and you want to stay with the trim’s original fitment format.
225/55R17 is a metric radial size with a 225-millimeter nominal section width, a 55-series profile, radial construction, and a 17-inch rim diameter. On the 2020 Mazda 6, this size is tied to the Sport trim and gives buyers a broader appearance range within the same fitment. BFGoodrich offerings include blackwall g-Force options along with Silvertown Radial versions in wide whitewall and redline form. This size deserves a closer look if your car uses 17-inch wheels and you want to balance everyday road use with either a contemporary or more distinctive visual style.
Sub-model fitment matters on the 2020 Mazda 6 because tire size changes with trim level rather than remaining uniform across the lineup. The first step is confirming whether your car is a Sport with 17-inch wheels or one of the trims that use the 19-inch setup.
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2020 Mazda 6 Grand Touring
The 2020 Mazda 6 Grand Touring uses the 225/45R19 radial size. Tire selection here is mainly about choosing among available blackwall performance-oriented radial series while confirming that the car still has its 19-inch wheel setup.
The 2020 Mazda 6 Grand Touring Reserve uses the 225/45R19 radial size. That keeps the focus on 19-inch wheel compatibility and on selecting the tire series that best matches how the car is driven and presented.
The 2020 Mazda 6 Signature also uses the 225/45R19 radial size. Buyers in this trim should concentrate on staying with the correct 19-inch fitment and comparing the available blackwall radial choices within that size.
The 2020 Mazda 6 Sport uses the 225/55R17 radial size rather than the 19-inch fitment found on other trims. That creates a wider styling decision, since this size is available in blackwall, wide whitewall, and redline versions.
The 2020 Mazda 6 Touring uses the 225/45R19 radial size. Selection is straightforward once the 19-inch wheels are confirmed, with the main differences coming from tire series and product character rather than size changes.
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 Mazda 6 Tires for Sale
Available 2020 Mazda 6 tire choices center on BFGoodrich radial products in both primary sizes. Buyers can compare g-Force series blackwall options in 17- and 19-inch fitments, while 225/55R17 also adds Silvertown Radial choices with wide whitewall and redline sidewall treatments.
These FAQs focus on the exact tire sizes used on the 2020 Mazda 6, how fitment changes by trim, and how to compare available radial, sidewall, and wheel-size choices before putting the car back on the road.
Tire Size & Fitment
What tire size fits a 2020 Mazda 6?
The 2020 Mazda 6 uses two tire sizes: 225/45R19 and 225/55R17. The 225/45R19 size fits the Grand Touring, Grand Touring Reserve, Signature, and Touring trims, while the Sport uses 225/55R17.
That means the first job is identifying the trim and confirming the wheel diameter on the car. A Mazda 6 that has had wheel changes, replacement rims, or a trim-level wheel swap should be checked carefully before selecting tires, since the 17-inch and 19-inch fitments are not the same starting point.
What size rim does a 2020 Mazda 6 use?
A 2020 Mazda 6 uses either a 19-inch rim or a 17-inch rim, depending on sub-model. The Grand Touring, Grand Touring Reserve, Signature, and Touring use 19-inch wheels with 225/45R19 tires, while the Sport uses 17-inch wheels with 225/55R17 tires.
Wheel diameter should be confirmed before anything else because the tire size is built around it. The rim width also matters when comparing products, especially if the car has aftermarket wheels, since individual tire offerings within these sizes can have different approved rim-width ranges.
Do all 2020 Mazda 6 sub-models use the same tire size?
No. The 2020 Mazda 6 lineup is split between two sizes. Sport models use 225/55R17, while Grand Touring, Grand Touring Reserve, Signature, and Touring models use 225/45R19.
This split matters because the difference is not just profile; it also changes wheel diameter and the product choices available. The 17-inch size includes blackwall, wide whitewall, and redline options, while the 19-inch size stays focused on blackwall performance-oriented radials.
Choosing the Right Tire
What should I consider when choosing a tire for a 2020 Mazda 6?
Start with the correct size for the trim: 225/45R19 for Grand Touring, Grand Touring Reserve, Signature, and Touring, or 225/55R17 for Sport. From there, compare radial construction, approved rim-width range, tire series, weight, and any stated load capacity details that apply to the specific tire.
The best choice depends on how the car is used and how you want it to look. Some Mazda 6 owners will prefer a straightforward blackwall performance-style radial, while others using 225/55R17 may want a Silvertown Radial with a wide whitewall or redline presentation.
What sidewall styles are available for 2020 Mazda 6 tires?
Sidewall style depends on tire size. In 225/45R19, the available choices are blackwall. In 225/55R17, blackwall options are available along with wide whitewall and redline versions in the Silvertown Radial line.
That makes the 17-inch Sport fitment the more appearance-driven size if visual character matters as much as basic fitment. A buyer who wants a more modern understated look can stay with blackwall, while a more distinctive period-inspired look is possible in the 17-inch size without changing the basic tire size.
What tire series are available for the 2020 Mazda 6?
The available series for the 2020 Mazda 6 include BFGoodrich g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and Silvertown Radial. The 19-inch size centers on the g-Force family, while the 17-inch size includes both g-Force options and Silvertown Radial choices.
Series selection helps separate a more contemporary performance-oriented presentation from a more style-focused one. Once the correct size is confirmed, compare series differences alongside wheel compatibility, stated load information where given, and the sidewall appearance that suits your Mazda 6 best.
Restoration & Appearance
Which tire should I choose for a period-style 2020 Mazda 6?
A period-style approach is less about restoration accuracy on a 2020 Mazda 6 and more about the look you want the car to carry. The strongest styling choice appears in 225/55R17, where Silvertown Radial options add either a wide whitewall or a redline sidewall to the correct Sport fitment.
That decision still has to begin with the actual trim and wheel diameter on the car. A Sport owner has appearance flexibility within the proper 17-inch size, while the 19-inch trims remain centered on blackwall radial choices that keep a more contemporary presentation.
How does tire construction affect the appearance of a restored or customized 2020 Mazda 6?
All primary tire fitments for the 2020 Mazda 6 are radial, so construction choice does not create a bias-ply-versus-radial appearance decision here. Visual character comes more from the size used on the car and from the sidewall treatment available within that size.
A customized Mazda 6 on 17-inch wheels can take on a very different personality with blackwall, wide whitewall, or redline styling, even while staying in the proper radial format. On 19-inch cars, appearance remains more restrained, so the series choice becomes a larger part of the final look.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2020 Mazda 6?
Yes. Wheel swaps, suspension changes, lowering, and aftermarket offsets can all affect tire fitment on a 2020 Mazda 6 even when the tire size sounds familiar. This matters especially because the model already uses two different wheel diameters across its trim range.
Any car that has moved away from its original wheel setup should be checked for wheel diameter, wheel width, and clearance at full steering lock and suspension travel. Those steps are important before selecting either 225/45R19 or 225/55R17, particularly if appearance modifications have already been made.
What should I inspect before driving a 2020 Mazda 6 on new tires?
Check that the tire size matches the trim and wheel diameter, then inspect the wheels themselves for damage, bent lips, or poor bead-seat condition. It also helps to verify inflation, look over the valve stems, and confirm that the tires clear suspension and body components properly.
A quick road-use inspection should also include alignment awareness and a look at the rest of the car’s running condition. Uneven wear on the old tires, steering pull, or vibration can point to wheel or suspension issues that should be corrected so the new tires wear and drive as intended.
How often should tires on a 2020 Mazda 6 be inspected?
Tires on a 2020 Mazda 6 should be inspected regularly, not just when they appear low or worn. Look for tread wear, cuts, bulges, punctures, irregular wear patterns, and pressure loss, especially if the car is driven daily or sees long highway trips.
Cars that sit for extended periods still need attention because time, heat, and storage conditions can affect tire condition even with low mileage. A routine visual check and pressure check before longer drives is a smart habit, and any vibration, pull, or sudden change in handling deserves immediate inspection.