The 2014 Infiniti Q50 arrived as a modern sport sedan with a stronger emphasis on sharp styling, rear-drive luxury-sport character, and a more technology-forward identity than many earlier Infiniti sedans. That matters when choosing tires, because this car can ride on either 225/55R17 or 245/40R19 radials depending on sub-model and wheel package. The 17-inch fitment leans toward a balanced road-going setup, while the 19-inch fitment brings a lower-profile look and a different wheel requirement. Available choices also vary by tire series and sidewall treatment, so the right selection depends on whether the goal is everyday driving, a sportier presentation, or a more distinctive appearance.
Which Tire Size Is Right for The 2014 Infiniti Q50
The 2014 Infiniti Q50 uses two primary tire sizes, and the right one depends first on the exact sub-model and wheel diameter on the car. Some versions use 17-inch wheels with 225/55R17 tires, while others use 19-inch wheels with 245/40R19 tires, and a few sub-models could be found with either setup. Before choosing a tire, confirm both the sub-model and the actual wheel diameter currently installed.
225/55R17 is a metric radial size where 225 is the section width in millimeters, 55 is the aspect ratio, R identifies radial construction, and 17 is the wheel diameter in inches. On the 2014 Infiniti Q50, this size is tied to the 17-inch wheel fitment and suits sub-models equipped with that package. Available choices include BFGoodrich performance-oriented g-Force series options as well as Silvertown Radial versions with blackwall, wide whitewall, and redline presentations. This size is the one to evaluate when the car retains its 17-inch wheels and the goal is to balance proper fitment with the preferred look and tire character.
Fit(s): Hybrid Premium, Hybrid Sport, Premium, and Sport
Construction: Radial|Rim: 19 in
245/40R19 is a metric radial size where 245 is the section width in millimeters, 40 is the aspect ratio, R denotes radial construction, and 19 is the wheel diameter in inches. On the 2014 Infiniti Q50, this size belongs to the 19-inch wheel setup used on sport-oriented configurations and some optional-wheel applications. The available product range centers on BFGoodrich blackwall performance radials in the g-Force family, including multiple series within that lineup. This is the size to focus on when the car is equipped with 19-inch wheels and maintaining the intended wheel-and-tire relationship matters more than simply matching the model name.
Sub-model fitment on the 2014 Infiniti Q50 is not completely uniform, because some versions use one tire size while others could be equipped with either the 17-inch or 19-inch setup. Checking the exact sub-model matters here, but confirming the wheel diameter on the car is just as important before selecting a tire.
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2014 Infiniti Q50 Base
The 2014 Infiniti Q50 Base uses the 225/55R17 radial fitment. Tire selection here centers on staying with the correct 17-inch size while choosing between performance-oriented blackwall options and more appearance-focused radial styles such as wide whitewall or redline.
The 2014 Infiniti Q50 Hybrid Premium can use either the 225/55R17 or 245/40R19 radial setup, depending on the wheel package on the car. That makes wheel confirmation essential before purchase, since the decision is not just tire style but also the correct rim diameter and profile.
The 2014 Infiniti Q50 Hybrid Sport uses the 245/40R19 radial fitment. Tire choice for this sub-model is more focused, with blackwall BFGoodrich performance radial options that keep the proper 19-inch wheel relationship and low-profile appearance.
The 2014 Infiniti Q50 Premium can be found with either 225/55R17 or 245/40R19 radials. The first step is verifying whether the car has 17-inch or 19-inch wheels, then comparing the available tire series and sidewall treatments within that correct size.
The 2014 Infiniti Q50 Sport uses the 245/40R19 radial size. That points the buyer toward 19-inch blackwall performance radials, with the main decision becoming tire series selection and confirmation that the existing wheels match the intended fitment.
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 2014 Infiniti Q50 Tires for Sale
Available 2014 Infiniti Q50 tire choices center on BFGoodrich radial products in 225/55R17 and 245/40R19. Buyers can compare g-Force series options for both sizes, while the 17-inch fitment also adds Silvertown Radial choices in blackwall-style performance, wide whitewall, and redline presentations.
These FAQs focus on 2014 Infiniti Q50 tire size differences by sub-model, 17-inch versus 19-inch wheel fitment, available radial tire choices, appearance options, and the checks that matter before driving on new tires.
Tire Size & Fitment
What tire size fits a 2014 Infiniti Q50?
The 2014 Infiniti Q50 uses two primary tire sizes: 225/55R17 and 245/40R19. Both are radial tire fitments, but they do not apply uniformly across every version of the car, because some sub-models use one size only while others could be equipped with either setup.
The practical next step is to confirm the exact sub-model and the wheel diameter currently on the car. A Base model uses the 17-inch fitment, while Sport and Hybrid Sport models use the 19-inch fitment, and Premium or Hybrid Premium versions may require either size depending on the wheels installed.
What size rim does a 2014 Infiniti Q50 use?
A 2014 Infiniti Q50 uses either a 17-inch or 19-inch rim, depending on the tire size and sub-model configuration. The 225/55R17 fitment is matched to a 17-inch wheel, while the 245/40R19 fitment is matched to a 19-inch wheel.
That rim difference is the most important fitment check on this vehicle, especially on Premium and Hybrid Premium versions that may appear under either tire size. Looking at the sidewall size on the current tires is helpful, but confirming the actual wheel diameter on the car prevents ordering a tire that matches the model yet does not match the wheel.
Why does the 2014 Infiniti Q50 have more than one tire size?
The 2014 Infiniti Q50 has more than one tire size because fitment changes with sub-model and wheel package. Some versions use 225/55R17 on 17-inch wheels, while others use 245/40R19 on 19-inch wheels, and certain trims could be equipped with either setup.
That means tire selection starts with vehicle configuration, not just the model name. A lower-profile 19-inch setup and a taller-profile 17-inch setup are not interchangeable choices by default, so it is important to verify the wheels currently installed, especially if the car has had a previous owner or has been modified since new.
Choosing the Right Tire
What should I consider when choosing a tire for a 2014 Infiniti Q50?
Start with the correct primary size for the car: 225/55R17 on 17-inch wheels or 245/40R19 on 19-inch wheels. From there, compare the tire's intended character, because available 2014 Infiniti Q50 choices include BFGoodrich g-Force series radials as well as appearance-focused Silvertown Radial options in the 17-inch size.
The right choice depends on how the car will be used and how you want it to look. A buyer focused on a modern blackwall performance presentation may lean toward the g-Force lines, while someone wanting a more distinctive visual treatment on 17-inch wheels may prefer wide whitewall or redline styling.
What sidewall styles are available for 2014 Infiniti Q50 tires?
Sidewall style depends on the tire size selected for the 2014 Infiniti Q50. In 225/55R17, available sidewall treatments include Blackwall, Wide Whitewall, and Redline, while the 245/40R19 options shown here are blackwall performance radials.
That makes the 17-inch fitment the broader appearance choice if visual style matters as much as fitment. The 19-inch size stays closer to a modern sport-sedan look, so buyers using that setup are mostly comparing tire series and wheel compatibility rather than choosing between multiple decorative sidewall treatments.
What tire series are available for the 2014 Infiniti Q50?
The 2014 Infiniti Q50 is offered here with several BFGoodrich tire series, including g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and Silvertown Radial. The g-Force lines appear in both primary sizes, while Silvertown Radial is available in the 225/55R17 fitment.
Series choice helps narrow the tire to the kind of presentation and use you want after size is confirmed. On a 17-inch Q50, the decision may include appearance-oriented options such as wide whitewall or redline, while a 19-inch Q50 centers more heavily on blackwall performance radial selections.
Restoration & Appearance
Which tire should I choose for a period-style 2014 Infiniti Q50?
A period-style approach for a 2014 Infiniti Q50 starts with keeping the correct size for the car's wheel setup, then choosing the presentation that best suits the look you want. In 225/55R17, that can include BFGoodrich Silvertown Radial versions alongside more modern blackwall performance radials.
Because the Q50 is a modern luxury-sport sedan rather than a vintage restoration platform, appearance choices are more about visual preference than strict originality. A buyer after a cleaner contemporary look may stay with blackwalls, while a more distinctive custom-style presentation could point toward a wide whitewall or redline in the 17-inch fitment.
How does tire construction affect the appearance of a restored 2014 Infiniti Q50?
On a 2014 Infiniti Q50, construction does not create a bias-ply versus radial decision because the primary fitments are radial. Appearance changes here come more from wheel diameter, sidewall profile, and sidewall treatment than from switching between older and newer tire construction types.
A 17-inch setup with 225/55R17 offers more room for visual variation because wide whitewall and redline options are available in that size. The 19-inch 245/40R19 fitment presents a lower-profile, more modern sport-sedan look, so the visual choice there is shaped mainly by retaining the correct size and wheel package.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2014 Infiniti Q50?
Yes. Modifications can affect tire fitment on a 2014 Infiniti Q50 even when the tire size matches one of the original fitment paths. Aftermarket wheels, different wheel widths, suspension changes, lowering, or body alterations can all change the space available for the tire.
That is especially important on this model because both 17-inch and 19-inch setups exist, and some trims may have been changed from one to the other over time. A modified Q50 should be checked for actual wheel diameter, wheel width, and clearance at the fender and steering range before a new set is selected.
What should I inspect before driving a 2014 Infiniti Q50 on new tires?
Before driving a 2014 Infiniti Q50 on new tires, confirm that the installed size matches the wheel diameter and that the tires are seated and inflated correctly. It is also wise to inspect the wheels themselves for damage and make sure there is no rubbing at the suspension, fender, or steering components.
A short road check can help confirm that the car tracks properly and that no vibration or interference appears once the tires are loaded in motion. Since this Q50 can use either 17-inch or 19-inch fitments depending on version, verifying that the mounted tires match the actual wheel package is an essential final step.
How often should tires on a 2014 Infiniti Q50 be inspected?
Tires on a 2014 Infiniti Q50 should be inspected regularly, not just when tread looks low. Routine checks should include air pressure, visible tread wear, cuts, punctures, bulges, and any sidewall damage that might affect safe road use.
Uneven wear can also point to alignment or suspension issues, which matter on both the 225/55R17 and 245/40R19 fitments. Cars that are driven less often still benefit from periodic inspection, because age, storage conditions, and slow air loss can affect tire condition even when the vehicle does not accumulate many miles.
