2012 Infiniti G37 Tires

The 2012 Infiniti G37 uses five primary radial tire sizes: 225/45R19, 225/50R18, 245/40R19, 245/45R18, and 225/55R17. The correct size depends on the exact sub-model and wheel package, and some versions use staggered front and rear fitments rather than the same size at all four corners.

The best first check is the car’s current wheel diameter and whether the front and rear sizes match. A coupe, sedan, convertible, IPL, Sport, or x-model may not use the same setup, so replacing tires by body style name alone can lead to the wrong selection if the vehicle has a different factory package or aftermarket wheels.

A 2012 Infiniti G37 can use 17-inch, 18-inch, or 19-inch rims, depending on the sub-model and tire size. The 225/55R17 fitment uses a 17-inch rim, the 225/50R18 and 245/45R18 sizes use 18-inch rims, and the 225/45R19 and 245/40R19 sizes use 19-inch rims.

Rim diameter should be confirmed before anything else, because several G37 versions overlap in model name but not in wheel size. It is also worth checking actual wheel width, especially on staggered applications, since front and rear tires do not share the same width and some replacement tires have different approved rim-width ranges.

The 2012 Infiniti G37 covers several configurations, including coupe, sedan, convertible, sport-oriented versions, and front-and-rear staggered setups. That spread creates multiple primary tire sizes across 17-, 18-, and 19-inch wheels, with some models using one size all around and others using a narrower front and wider rear combination.

That variation means the right tire is tied to the car’s exact configuration, not just the G37 badge. Looking at the current tire sidewall and wheel diameter is usually the quickest way to confirm what belongs on the vehicle, especially if the car has changed hands or has been updated with different wheels since new.

Start with the correct size, wheel diameter, and whether the car uses a square or staggered setup. From there, compare the available radial tire lines by intended use, rim-width compatibility, and any product details that matter to you, such as blackwall performance styling or a more appearance-focused sidewall in 225/55R17.

A G37 used for everyday driving may call for a different feel than one used mainly for fair-weather spirited miles. It also helps to keep the setup consistent across an axle, since mixing very different tire types front to rear can change how the car responds even when the sizes themselves are correct.

Blackwall is the standard sidewall style across all five primary 2012 Infiniti G37 tire sizes in the current product mix. In 225/55R17, there are also BFGoodrich Silvertown Radial options with a 1.50-inch wide whitewall and a redline sidewall, giving that size a noticeably broader appearance range than the others.

Those appearance options matter most for 17-inch applications, where a buyer may want either a contemporary blackwall look or a more custom-oriented presentation. Sidewall style does not change the need to confirm size and wheel match first, but it can be a deciding factor once the correct 17-inch fitment has been established.

BFGoodrich is available across every primary 2012 Infiniti G37 size, including g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and selected Silvertown Radial offerings in 225/55R17. Nitto also appears in the 245/45R18 rear fitment with the NT555 G2, adding another choice for that specific size.

Brand choice should still come after fitment confirmation. Once the correct size and wheel setup are clear, the useful comparison becomes tire series character, approved rim-width range, sidewall treatment, and any load details shown for the exact product, rather than assuming one brand covers every G37 application in the same way.

A period-style approach for a 2012 Infiniti G37 usually starts with retaining the correct original-style size format for the exact wheel package already on the car. Since this model uses modern metric radial sizes, the most natural visual starting point is typically a blackwall radial in the proper 17-, 18-, or 19-inch fitment.

For a more personalized look, 225/55R17 adds Silvertown Radial choices with wide whitewall or redline sidewalls. That can change the car’s presentation considerably, but appearance should come after confirming that the vehicle actually uses the 17-inch setup, because the other G37 sizes in this fitment group stay blackwall-only.

Correct tire fitment matters on a 2012 Infiniti G37 because wheel diameter and front-to-rear sizing help define how the car sits and how complete the finished presentation feels. A sedan on 17-inch tires gives a different visual impression than a staggered 19-inch coupe or IPL setup, even before the car moves.

Preservation-minded owners should confirm the exact sub-model and wheel package before replacing anything, especially on cars that may have been modified. If originality is especially important, compare the current setup against vehicle-specific reference material and then choose the tire size and sidewall treatment that best support that goal.

Yes, modifications can affect tire fitment on a 2012 Infiniti G37. Aftermarket wheels, different offsets, lowered suspension, alignment changes, or body alterations can all change how a 225/45R19, 245/40R19, 225/50R18, 245/45R18, or 225/55R17 tire sits within the wheel well and how much clearance it has.

Even when the tire size matches a known G37 application, the car’s actual setup still matters. A quick check of wheel width, front-to-rear sizing, steering clearance, and rear fender space can prevent surprises, especially on staggered cars where the wider rear tire leaves less margin for changes than a square setup.

Before road use, inspect tire pressure, bead seating, lug torque, tread and sidewall condition, and basic front-to-rear size consistency. On a 2012 Infiniti G37, it is especially important to confirm that the correct tire is mounted at each position when the car uses a staggered arrangement with narrower front and wider rear tires.

A short clearance check is also worthwhile with the steering turned lock to lock and the suspension settled at normal ride height. After the first few drives, look again for any rubbing, unusual wear, or pressure loss, since collector and enthusiast cars are often driven less frequently and can hide issues between uses.

Tires on a 2012 Infiniti G37 should be inspected regularly, not just when tread appears low. Pressure, tread wear, sidewall cracking, cuts, bulges, and signs of uneven wear deserve attention, especially on cars that see seasonal use or spend long periods parked between drives.

A quick visual check before each outing and a more deliberate inspection at routine service intervals is a sensible habit. Cars with staggered sizing or sporty alignments can show front-to-rear wear differences more quickly, so keeping an eye on condition at both axles helps catch problems before they affect ride quality or road manners.