The 2017 Infiniti Q50 sits in the modern sport-luxury sedan category, blending sharp styling with rear-wheel-drive performance roots and available AWD or hybrid drivetrains. That mix means tire fitment matters not just for appearance, but for how the car sits, steers, and responds on the road. This model uses three primary radial tire sizes: 225/55R17, 245/40R19, and 265/35R19, with fitment changing by sub-model and, in one case, by front and rear position. Available choices range from performance-focused blackwall radials to Silvertown Radial options with whitewall or redline styling. The key is matching the exact Q50 configuration before comparing tire series, sidewall look, and wheel compatibility.
Which Tire Size Is Right for The 2017 Infiniti Q50
The 2017 Infiniti Q50 uses three primary tire sizes, and the right one depends on the exact sub-model and wheel setup. Some versions use 17-inch wheels with 225/55R17 tires, while others use 19-inch fitments in 245/40R19, and the Red Sport 400 RWD adds a 265/35R19 rear size. Identifying the exact trim and confirming wheel diameter should come first before comparing tire series or sidewall style.
225/55R17 is a metric radial size that measures 225 millimeters in section width, uses a 55-series aspect ratio, and fits a 17-inch rim. On the 2017 Infiniti Q50, this size serves sub-models that use the smaller wheel package and keeps the fitment firmly in modern radial construction. Available choices include BFGoodrich performance-oriented g-Force series along with Silvertown Radial options in blackwall, wide whitewall, and redline styling. It is the size to evaluate when the car is on 17-inch wheels and the buyer wants to balance correct fitment with either sport-focused or appearance-driven tire selection.
Fit(s): Hybrid Premium (AWD), Hybrid Premium (RWD), Premium 3.0t (AWD), Premium 3.0t (RWD), Red Sport 400 (AWD), Red Sport 400 (RWD) Front, Sport (AWD), and Sport (RWD)
Construction: Radial|Rim: 19 in
245/40R19 is a metric radial size with a 245-millimeter section width, a 40-series profile, and a 19-inch rim diameter. For the 2017 Infiniti Q50, it is the primary 19-inch fitment across several higher-trim, sport-oriented, and hybrid configurations, and it stays within modern radial construction. This size is available in BFGoodrich g-Force Comp 2 AS, g-Force Sport Comp 2, and g-Force Phenom T/A blackwall tires. It is the size to focus on when the Q50 carries a 19-inch wheel package and the decision centers more on tire series and intended driving character than on sidewall appearance.
265/35R19 is a wider metric radial size with a 265-millimeter section width, a 35-series profile, and a 19-inch rim diameter. On the 2017 Infiniti Q50, this size appears as the rear fitment for the Red Sport 400 RWD, making it a position-specific choice rather than a universal Q50 size. Available blackwall options include BFGoodrich g-Force Sport Comp 2, BFGoodrich g-Force Phenom T/A, and the Nitto NT555 G2. This is the size to verify carefully when replacing staggered rear tires, since the correct rear fitment matters just as much as the front size on that configuration.
Tire fitment on the 2017 Infiniti Q50 varies by sub-model, wheel package, and in one case by axle position. Checking the exact trim is important because this car uses both 17-inch and 19-inch fitments, and the Red Sport 400 RWD does not use the same size front and rear.
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2017 Infiniti Q50 Base
The 2017 Infiniti Q50 Base uses the 225/55R17 radial size. That keeps tire selection centered on the 17-inch fitment, where the choice becomes whether to stay with a performance-style blackwall or consider a more distinctive whitewall or redline presentation.
The 2017 Infiniti Q50 Hybrid Premium (AWD) uses 245/40R19 radial tires. Tire selection here starts with confirming the 19-inch wheel setup, then comparing blackwall performance-oriented series within that size.
The 2017 Infiniti Q50 Hybrid Premium (RWD) also uses the 245/40R19 radial size. That makes the main decision less about fitment variety and more about choosing the right 19-inch tire series for the car's intended road use and handling feel.
The 2017 Infiniti Q50 Premium 2.0t uses 225/55R17 radial tires. Buyers should confirm that the car still wears its 17-inch wheels, then compare available tire styles and series within that size rather than stepping into a different fitment.
The 2017 Infiniti Q50 Premium 3.0t (AWD) appears with either 225/55R17 or 245/40R19 radial fitment. That makes wheel confirmation the first step, since the correct tire choice depends on whether the car is using the 17-inch or 19-inch setup.
The 2017 Infiniti Q50 Premium 3.0t (RWD) can use either 225/55R17 or 245/40R19 radials. Before comparing products, confirm the actual wheel diameter on the car so the tire search stays aligned with the correct package.
The 2017 Infiniti Q50 Red Sport 400 (AWD) uses 245/40R19 radial tires. Selection is straightforward once the 19-inch setup is confirmed, with the focus shifting to blackwall performance tire series in the proper size.
The front position on the 2017 Infiniti Q50 Red Sport 400 (RWD) uses 245/40R19 radial tires. Since this is part of a staggered setup, the front size should be matched carefully to the front wheels rather than assuming all four tires are the same.
The rear position on the 2017 Infiniti Q50 Red Sport 400 (RWD) uses the wider 265/35R19 radial size. That rear-specific fitment makes it important to check axle position before ordering, especially on cars where previous owners may have changed wheels or tire sizing.
The 2017 Infiniti Q50 Sport (AWD) uses 245/40R19 radial tires. That points the tire search toward 19-inch blackwall performance offerings, with selection driven mainly by tire series and wheel compatibility.
The 2017 Infiniti Q50 Sport (RWD) also uses 245/40R19 radial tires. Once the wheel diameter is confirmed, the next step is comparing available performance-oriented radial choices within that single 19-inch size.
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 2017 Infiniti Q50 Tires for Sale
Available 2017 Infiniti Q50 tires center on 225/55R17, 245/40R19, and 265/35R19 radial fitments, with BFGoodrich appearing across all three sizes and Nitto available in 265/35R19. Buyers can compare performance-focused g-Force and Phenom series, along with 225/55R17 Silvertown Radial choices in blackwall, wide whitewall, and redline styles.
Owners of a 2017 Infiniti Q50 usually need to sort out trim-specific tire size, 17-inch versus 19-inch wheel fitment, staggered Red Sport sizing, and the differences between available radial tire series and sidewall styles.
Tire Size & Fitment
What tire size fits a 2017 Infiniti Q50?
The 2017 Infiniti Q50 uses three primary radial tire sizes: 225/55R17, 245/40R19, and 265/35R19. The correct size depends on the exact sub-model and wheel package, and the Red Sport 400 RWD uses a staggered setup with 245/40R19 in front and 265/35R19 in the rear.
Choosing the right one starts with identifying the exact trim and confirming the wheel diameter currently on the car. Some Q50 versions can appear with either 17-inch or 19-inch fitment, so checking the actual wheel setup matters before comparing tire series, load capacity, or sidewall style.
What size rim does a 2017 Infiniti Q50 use?
The 2017 Infiniti Q50 uses either a 17-inch or 19-inch rim, depending on sub-model and tire size. The 225/55R17 fitment uses a 17-inch rim, while both 245/40R19 and 265/35R19 use 19-inch rims.
Rim diameter should be confirmed before selecting tires, especially on Premium 3.0t models that appear with more than one wheel package. Once diameter is verified, it also helps to compare wheel width against the tire's approved rim-width range so the tire and wheel remain properly matched.
Why does the 2017 Infiniti Q50 have more than one tire size?
The 2017 Infiniti Q50 has more than one tire size because fitment changes across trims, wheel packages, and drivetrain configurations. Some versions use a 17-inch 225/55R17 setup, several sport-oriented and hybrid trims use 245/40R19, and the Red Sport 400 RWD adds a wider 265/35R19 rear tire.
That means tire selection is tied to the actual configuration rather than the model name alone. A Q50 with different wheels than expected, or one that has been modified, can easily lead to ordering the wrong size unless the wheel diameter and front-to-rear setup are checked first.
Choosing the Right Tire
What should I consider when choosing a tire for a 2017 Infiniti Q50?
Start with the correct size for the exact 2017 Infiniti Q50 trim: 225/55R17, 245/40R19, or 265/35R19 rear on the Red Sport 400 RWD. After size is settled, compare radial construction details such as rim-width compatibility, load figures where stated, tire series, and whether the car needs a matched or staggered setup.
The next decision is how the car is used and how it should look. Some 225/55R17 options lean toward a traditional appearance with whitewall or redline styling, while the 19-inch choices stay focused on blackwall performance-oriented series.
What sidewall styles are available for 2017 Infiniti Q50 tires?
Sidewall style depends on the tire size. In 225/55R17, available sidewall treatments include blackwall, wide whitewall, and redline, while the 245/40R19 and 265/35R19 Q50 fitments are represented by blackwall tires.
That makes the 17-inch fitment the only one with a broader appearance choice. Buyers who want the Q50 to keep a cleaner modern performance look may stay with blackwalls, while a more custom or distinctive presentation can come from the whitewall or redline 225/55R17 options.
What brands offer tires for the 2017 Infiniti Q50?
BFGoodrich appears across all three primary 2017 Infiniti Q50 sizes, covering 225/55R17, 245/40R19, and 265/35R19. Nitto also appears in the 265/35R19 rear fitment used on the Red Sport 400 RWD.
Brand choice should still come after confirming the exact tire size and wheel package. Once that is settled, compare the available tire series within that size, along with sidewall style where applicable, instead of assuming that every brand offering spans the full range of Q50 fitments.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2017 Infiniti Q50?
Yes, modifications can change tire fitment on a 2017 Infiniti Q50. Aftermarket wheels, suspension changes, lowering, spacer use, or a non-stock staggered setup can alter the wheel diameter, width, and clearance relationship that the original 225/55R17, 245/40R19, or 265/35R19 fitments were built around.
A modified Q50 should be checked carefully before replacing tires by size alone. Wheel width, front and rear tire position, steering clearance, and fender clearance all matter, especially on 19-inch packages and on Red Sport 400 RWD cars that already use different front and rear sizes.
What should I inspect before driving a 2017 Infiniti Q50 on new tires?
Before driving a 2017 Infiniti Q50 on new tires, inspect the wheels for the correct diameter and condition, confirm the tire size matches the trim, and check that all four tires are mounted in the proper positions. Air pressure, valve stems, and any visible signs of wheel damage deserve attention as well.
A short clearance and road test is also worthwhile, especially if the car has 19-inch wheels or a staggered setup. Listening for rubbing, watching for steering pull, and rechecking inflation after the first drive can help catch installation or fitment issues early.
What should I check before a longer drive in a 2017 Infiniti Q50?
Before a longer drive, make sure the 2017 Infiniti Q50 is riding on the correct tire sizes for its trim and wheel setup, with even tread condition and stable air pressure. It is also smart to inspect for cuts, bulges, cracking, irregular wear, or slow air loss before spending extended time at highway speed.
Longer trips put more emphasis on overall tire condition than a short local drive does. On cars with 19-inch tires or the Red Sport 400 RWD staggered arrangement, double-check that front and rear sizes have not been mixed and that the tires have adequate clearance under load and steering movement.
