In 2001, Infiniti balanced sport and luxury with a compact European-flavored sedan in the G20, a refined midsize front-driver in the I30, and a flagship V8 luxury sedan in the Q45. That spread matters because 2001 Infiniti models do not share one universal tire size across the lineup. Three models use five distinct radial sizes, with the only shared fitment being 225/50R17 across the I30 and Q45, while the G20 stays on its own 15-inch sizes. The first thing to confirm before choosing a tire is your exact model and wheel diameter, since that determines which size family applies to your car.
Which Tire Size Is Right for Your 2001 Infiniti
Five tire sizes are used across 2001 Infiniti vehicles, and they vary by model rather than carrying across the full lineup. Because these sizes span 15-, 16-, and 17-inch wheel diameters, the real decision starts with confirming your model and wheel size first, then narrowing the choice within that fitment. Understanding that distinction before choosing a product saves time and helps match the tire to the right car.
Year(s): 2001|Fit(s): G20|Construction: Radial|Rim: 15-in rim
195/65R15 is a metric radial size with a 195-millimeter section width, a 65-series aspect ratio, and a 15-inch rim diameter. This size is specific to the G20 rather than universal across 2001 Infiniti models. Its role is to keep the choice centered on the correct G20 wheel fitment before moving on to tread style, ride character, or appearance details.
Year(s): 2001|Fit(s): G20|Construction: Radial|Rim: 15 in
195/60R15 is a metric radial size with a 195-millimeter section width, a 60-series aspect ratio, and a 15-inch rim diameter. BFGoodrich and Michelin offer this size with wide whitewall, redline, RWL, and blackwall sidewall treatments, and speed ratings vary by product, including S up to 112 mph and V up to 149 mph. This size is specific to the G20, so the practical choice comes down to whether you want a more vintage visual treatment or a more contemporary radial presentation on a 15-inch wheel.
Year(s): 2001|Fit(s): I30|Construction: Radial|Rim: 16 in
215/55R16 is a metric radial size with a 215-millimeter section width, a 55-series aspect ratio, and a 16-inch rim diameter. American Classic and BFGoodrich offer it in redline, wide whitewall, and blackwall form, with speed-rating variation across products that includes W up to 168 mph. This size is specific to the I30, making it a fitment that can lean either toward a distinctive period-style sidewall look or a more modern blackwall presentation.
Year(s): 2001|Fit(s): I30, Q45|Construction: Radial|Rim: 17 in
225/50R17 is a metric radial size with a 225-millimeter section width, a 50-series aspect ratio, and a 17-inch rim diameter. BFGoodrich and Nitto offer this size in blackwall form, with W-rated products reaching 168 mph. Because this size is shared by the I30 and Q45, it is the common 17-inch fitment for buyers who have one of those models and want a straightforward modern radial choice.
Year(s): 2001|Fit(s): Q45|Construction: Radial|Rim: 16-in rim
215/60R16 is a metric radial size with a 215-millimeter section width, a 60-series aspect ratio, and a 16-inch rim diameter. This size is specific to the Q45 rather than shared across the full 2001 Infiniti range. It is the right path when your Q45 remains on its 16-inch fitment, making wheel diameter confirmation more important than cross-shopping against the 17-inch option.
Three Infiniti models are covered for 2001, and tire size changes with the model rather than staying the same across the lineup. In practical terms, that means year and make alone are not enough; you need to identify whether you have a G20, I30, or Q45 before narrowing down tire size. Select your model below for model-specific fitment history and products.
2001 Infiniti G20
The 2001 Infiniti G20 was Infiniti's compact sport sedan, known for a tidy footprint and a more European-style driving character than the brand's larger luxury cars. Its tires mount on 15-inch wheels, and its two fitments stay exclusive to the G20 within the 2001 Infiniti range.
The 2001 Infiniti I30 was a near-luxury midsize sedan aimed at buyers who wanted comfort, quietness, and a more upscale take on front-wheel-drive touring. It uses either a 16-inch or 17-inch tire fitment, so wheel diameter is the key detail to confirm before choosing tires.
The 2001 Infiniti Q45 served as the brand's flagship luxury sedan, with a larger footprint and a more formal luxury mission than the G20 or I30. Its tires mount on either 16-inch or 17-inch wheels, and the 17-inch size overlaps with the I30 while the 16-inch size is unique to the Q45.
Ten products are available across three tire sizes for 2001 Infiniti vehicles. The 195/60R15 has four radial choices from BFGoodrich and Michelin with wide whitewall, redline, RWL, and blackwall styles; 215/55R16 has three radial options from BFGoodrich and American Classic with blackwall, redline, and wide whitewall styles; 225/50R17 has three radial blackwall choices from BFGoodrich and Nitto. Confirm your size first, since speed ratings can vary within a given size.
These answers sort out how 2001 Infiniti tire sizes change between the G20, I30, and Q45, what the metric size codes mean, which sidewall styles and brands exist in each fitment, and what to inspect on a low-use luxury or sport sedan before driving.
Size Basics & Fitment
What tire sizes fit 2001 Infiniti vehicles?
2001 Infiniti vehicles use five sizes across three models: 195/65R15 and 195/60R15 for the G20, 215/55R16 and 225/50R17 for the I30, and 215/60R16 plus 225/50R17 for the Q45. The G20 stays on 15-inch rims, the I30 uses either 16- or 17-inch rims, and the Q45 also uses either 16- or 17-inch rims. Rim-width guidance appears within the available products for 195/60R15 at 5.5 to 7 inches, 215/55R16 at 5.5 to 7.5 inches, and 225/50R17 at 6.0 to 8.0 inches.
That means the first fitment question on a 2001 Infiniti is not tread pattern or sidewall style, but model and wheel diameter. Once you confirm whether you have a G20, I30, or Q45 and whether the car is on 15-, 16-, or 17-inch wheels, the size choice becomes much narrower and easier to match to the way you use the car.
What does 195/60R15 mean on a 2001 Infiniti tire?
On a 2001 Infiniti, 195/60R15 is a metric radial size. The 195 is the tire's nominal section width in millimeters, 60 is the aspect ratio, meaning the sidewall height is 60 percent of the section width, R means radial construction, and 15 is the wheel diameter in inches. Within the 2001 Infiniti range, this size belongs to the G20.
That decoding matters because a 195/60R15 is not interchangeable with the 16- and 17-inch sizes used on the I30 or Q45. It also helps explain why the same G20 can have different visual and driving personalities depending on whether the tire is chosen in blackwall, whitewall, redline, or raised-white-letter form.
Do all 2001 Infiniti models use the same tire size?
No. The 2001 Infiniti G20 uses 195/65R15 and 195/60R15, the I30 uses 215/55R16 and 225/50R17, and the Q45 uses 215/60R16 and 225/50R17. Only one size, 225/50R17, is shared, and that overlap is limited to the I30 and Q45. There is no single tire size that fits every 2001 Infiniti model.
That model-specific split is especially important when shopping for a car you have not owned long or when replacing tires on a vehicle with changed wheels. A quick check of the model badge and actual wheel diameter will prevent you from mixing G20, I30, and Q45 fitments that belong to completely different parts of the 2001 Infiniti lineup.
Buying the Right Tire
What sidewall styles are available for 2001 Infiniti tires?
Sidewall appearance varies noticeably across 2001 Infiniti sizes. The G20's 195/60R15 fitment is available in wide whitewall, redline, raised white letter, and blackwall form. The I30's 215/55R16 fitment comes in blackwall, redline, and wide whitewall, while the shared 225/50R17 fitment for the I30 and Q45 is offered in blackwall only.
For a 2001 Infiniti, blackwall usually looks most natural if you want a factory-era modern luxury or sport-sedan appearance. Whitewall, redline, and raised-white-letter versions create a more customized or nostalgic visual statement, so the choice is less about fitment than about how you want the finished car to present.
What brands make tires for 2001 Infiniti vehicles?
Four brands cover the available 2001 Infiniti fitments: BFGoodrich, Michelin, American Classic, and Nitto. BFGoodrich appears across all three active product sizes on this page, Michelin covers 195/60R15, American Classic covers 215/55R16, and Nitto covers 225/50R17. Brand choice also affects sidewall treatment, since not every brand offers the same appearance in the same size.
That gives a 2001 Infiniti owner several different directions to consider. One brand may suit a more contemporary blackwall look, while another may be attractive if you want a redline or whitewall treatment in a metric radial size that was never traditionally associated with older collector-car styling.
What is the difference between BFGoodrich and Michelin options for a 2001 Infiniti G20 in 195/60R15?
For a 2001 Infiniti G20 in 195/60R15, BFGoodrich covers several visual styles, including wide whitewall, redline, and raised white letter, while Michelin offers a blackwall Primacy 3 in 195/60R15 88V TL. Speed rating differs as well where marked: the BFGoodrich Radial T/A carries an S rating to 112 mph, while the Michelin Primacy 3 carries a V rating to 149 mph. Rim-width guidance for both sits in the same general 5.5- to 7-inch range.
The practical difference is that BFGoodrich gives the G20 owner more period-themed appearance choices, while Michelin presents a more contemporary blackwall touring look. If your priority is preserving a stock-modern 2001 sedan appearance, the Michelin style may suit the car better; if you want a custom or retro visual statement, the BFGoodrich options open that door.
Fitting & Setup
What rim width do 2001 Infiniti tires require?
Rim-width guidance for 2001 Infiniti tires depends on size. The 195/60R15 fitment used on the G20 works with rims from 5.5 to 7 inches wide. The 215/55R16 fitment used on the I30 works with rims from 5.5 to 7.5 inches wide, and the 225/50R17 fitment shared by the I30 and Q45 works with rims from 6.0 to 8.0 inches wide.
Those ranges are useful when a 2001 Infiniti has aftermarket wheels or when you are trying to confirm whether an existing wheel can stay in service. Stay within the approved width range for the specific tire size you are considering, then verify wheel condition, bead-seat integrity, and overall wheel diameter before mounting a new set.
Do 2001 Infiniti tires require inner tubes?
Tube use on 2001 Infiniti tires can vary by product, so the sidewall marking matters. The Michelin 195/60R15 carries a TL marking, which identifies it as tubeless. Other products in the 195/60R15 group, along with the 215/55R16 and 225/50R17 products shown here, do not all carry the same tube-related marking in the size description, so they should be checked product by product rather than assumed.
That is especially important if your 2001 Infiniti is running older wheels, recently restored wheels, or a mix of replacement parts from different periods. Before mounting, confirm whether the exact tire you choose is marked tube-type or tubeless and make sure the wheel itself is appropriate for the intended setup.
Maintenance, Storage & Longevity
How should I store a 2001 Infiniti when the tires are fitted?
A 2001 Infiniti should be stored in a cool, dry, dark space away from direct sunlight, electric motors, welders, furnaces, and other ozone-producing equipment that can age rubber. Keep the tires properly inflated, and if the car will sit for long periods, move it periodically to avoid localized flat spotting. Radial tires generally tolerate storage better than old bias-ply designs, but long static storage can still harden the rubber and mark the tread contact area.
Collectors who rotate the car a few feet every month, clean road salts off the tires, and avoid letting the car rest on underinflated tires usually preserve both ride quality and appearance better. If the car will be parked for a season or longer, tire cradles or properly placed stands can help reduce stress on the carcass.
How long do tires on a 2001 Infiniti typically last?
On a 2001 Infiniti, age matters more than mileage for many enthusiast-owned cars. A good rule is to evaluate tires carefully once they reach about five to seven years from their DOT date code, and to give serious replacement consideration by around ten years even if tread depth still looks acceptable. Heat cycles, storage conditions, and inflation habits can shorten that timeline.
That is especially true for a G20, I30, or Q45 that is driven occasionally rather than daily, because low mileage can hide age-related hardening and cracking. If a tire still looks sharp but has become noisy, rides harshly, or shows sidewall checking, it is time to treat age as the deciding factor rather than remaining tread alone.
How often should tires on a 2001 Infiniti be inspected?
Tires on a 2001 Infiniti should be inspected before every drive and again before any longer highway outing. Look for sidewall cracking, tread separation, punctures, uneven wear, bulges, and signs of chronic underinflation. Pressure should be checked cold, and any car using a product that requires tubes should also have valve stems and tube-related sealing points inspected carefully.
Frequent inspection matters because a collector or weekend-driven Infiniti may spend more time parked than moving, and age-related problems often appear before tread is worn out. A two-minute walk-around with a gauge can catch issues early and helps prevent discovering a weak tire only after the car is already on the road.
Restoration & Authenticity
What tires were originally fitted to the 2001 Infiniti G20?
The 2001 Infiniti G20 belongs to an era when radial construction was standard, so a radial tire is the correct construction type for an original-style fitment. Within the 2001 Infiniti range, the G20 uses 195/65R15 or 195/60R15 depending on the exact application. No single original equipment brand should be assumed without checking the car itself, since market, package, and replacement history can all affect what is on the car today.
For restoration-minded owners, the best starting point is the tire placard, owner's literature, and any surviving delivery photos or service records for that specific car. If authenticity matters at a high level, an Infiniti marque specialist or owner community can help confirm whether your G20 should remain on its current size or return to the alternate 15-inch fitment.
Does correct tire fitment matter for showing a 2001 Infiniti?
Yes, correct tire fitment matters on a 2001 Infiniti if the car is judged for originality, preservation, or period correctness. Judges and knowledgeable enthusiasts will notice the overall size, the wheel diameter, and the sidewall style. On a neo-classic luxury or sport sedan from 2001, an obviously custom whitewall or redline treatment can change the visual character even if the tire still fits the wheel correctly.
That does not mean every show car needs the same look. A custom build has more freedom, while a stock-oriented G20, I30, or Q45 benefits from a tire that matches the era's modern radial appearance. If you plan to enter marque-specific events, check that club's standards first so the tire complements the class you intend to enter.
What is the difference between BFGoodrich and Nitto options for the 2001 Infiniti I30 or Q45 in 225/50R17?
For a 2001 Infiniti I30 or Q45 in 225/50R17, BFGoodrich and Nitto both offer blackwall radial tires with W speed ratings to 168 mph. BFGoodrich appears in both g-Force Comp-2 A/S and g-Force Sport Comp-2 form, while Nitto offers the NT555 G2 in an XL 98W specification. Load figures shown for this size include 1,477 pounds at 51 psi for one BFGoodrich option and 1,653 pounds at 50 psi for the Nitto.
That makes this comparison more about the exact tire series and its intended character than about basic fitment, because all of them share the same 17-inch size family. Owners choosing between them should compare the precise sidewall marking, load specification, and wheel-width compatibility against the way the car is used, especially if the sedan regularly carries passengers or luggage.
Safety & Road Use
Are 2001 Infiniti tires safe for highway driving?
Yes, 2001 Infiniti tires can be suitable for highway driving when the tire size matches the car, the tire is in sound condition, and the speed rating fits the intended use. Speed-rated products shown here include S at 112 mph, V at 149 mph, and W at 168 mph depending on size and product. All of the active fitments on this page are radial tires, which aligns well with the way a 2001 G20, I30, or Q45 was engineered to drive.
Real-world safety depends at least as much on the car as on the tire. On a 2001 Infiniti, suspension wear, alignment, brake condition, and tire age can matter more than the speed symbol during normal interstate driving. A fresh, properly inflated tire on a sound chassis is more important than chasing a higher speed rating you will never use.
What inflation pressure should I use for 2001 Infiniti tires?
Inflation pressure on a 2001 Infiniti should follow the vehicle placard or owner's manual for the car, with the tire manufacturer's maximum-pressure marking understood as a load-rating reference rather than a universal running pressure. Among the available products here, 195/60R15 examples show 1,190 pounds at 35 psi, 215/55R16 examples show 1,190 pounds at 35 psi, 225/50R17 BFGoodrich shows 1,477 pounds at 51 psi, and 225/50R17 Nitto shows 1,653 pounds at 50 psi.
Those numbers should not be transferred from one size to another or used to overwrite the car's recommended cold inflation setting. Start with Infiniti's vehicle recommendation, then adjust only within the tire maker's approved limits and only for a clear reason such as load, handling balance, or ride quality after a careful pressure check.
What should I check before taking a 2001 Infiniti on a longer drive?
Before a longer drive in a 2001 Infiniti, inspect all four tires and the spare for cracking, cuts, bulges, punctures, uneven tread wear, and proper cold pressure. Confirm that the tire size on the car matches the model and wheel diameter, and check valve stems closely. If your chosen tire uses a tube-type setup, include the valve hardware and any signs of air loss in that inspection.
Tires are only one part of the checklist on a 2001 luxury or sport sedan. It is also wise to look over brakes, fluids, belts, battery condition, and suspension before a highway trip. A well-sorted G20, I30, or Q45 is an enjoyable long-distance car, but a quick pre-drive inspection is what turns an old car outing into a dependable one.
