The 2019 Lexus Trucks NX300 sits in the modern luxury crossover class, blending compact dimensions with Lexus styling and a chassis tuned for everyday road use. That makes tire selection less about vintage-style construction and more about matching the exact wheel package fitted to the vehicle. This NX300 uses radial tires, but the correct primary size depends on sub-model and wheel diameter, with 17-inch, 18-inch, and 19-inch applications in play. Some versions share an 18-inch fitment while others move to different section widths or aspect ratios. The key first step is confirming the exact trim and wheel setup before comparing tire choices, appearance, and road-use priorities.
Which Tire Size Is Right for The 2019 Lexus Trucks NX300
Four primary tire sizes apply to the 2019 Lexus Trucks NX300, and the right one depends on the exact sub-model and wheel diameter. Because this model uses 17-inch, 18-inch, and 19-inch rims across the range, confirming the trim and the actual wheel size on the vehicle comes first. Once that is settled, the decision shifts to choosing the proper radial tire within the correct size and intended use.
225/60R18 is a metric radial size with a 225-millimeter section width, a 60-series aspect ratio, and an 18-inch rim diameter. On the 2019 Lexus Trucks NX300, this size is one of the main 18-inch fitments and keeps the buyer focused on matching the existing wheel package rather than changing construction type. Its dimensions place it close to the vehicle's other primary sizes, but it remains a distinct fitment tied to specific configurations. This is the size to evaluate when the NX300 already carries an 18-inch wheel and the goal is to stay with the proper factory-style overall setup.
225/65R17 is a metric radial size that combines a 225-millimeter section width with a 65-series profile on a 17-inch rim. For the 2019 Lexus Trucks NX300, it serves as the 17-inch fitment and should be matched to vehicles equipped with that wheel diameter. Available product choice in this size includes BFGoodrich's All-Terrain T/A KO2 with an RBL sidewall, which gives this fitment a more utility-oriented option than a purely road-focused presentation. It is the right starting point when the NX300 has 17-inch wheels and the buyer wants to compare road use against light all-terrain character.
235/55R18 is a metric radial tire with a wider 235-millimeter section width, a 55-series profile, and an 18-inch rim diameter. On the 2019 Lexus Trucks NX300, this is another 18-inch fitment, but it should not be treated as interchangeable with the narrower 225/60R18 without checking the exact sub-model and wheel setup. The wider section can influence the look and stance of the vehicle while still staying within the intended 18-inch wheel family. This size matters most when identifying an F Sport configuration and matching the tire to that specific wheel-and-trim combination.
235/50R19 is a metric radial size that uses a 235-millimeter section width, a 50-series aspect ratio, and a 19-inch rim diameter. For the 2019 Lexus Trucks NX300, it belongs to the 19-inch application and stands apart from the 17-inch and 18-inch fitments used elsewhere in the lineup. Its lower-profile format makes wheel confirmation especially important, since the 19-inch package requires the correct rim diameter before any product comparison begins. This is the size to follow when the vehicle carries the larger wheel setup and the goal is preserving the intended fitment relationship between tire and rim.
Tire fitment on the 2019 Lexus Trucks NX300 varies by sub-model, so identifying the exact trim is essential before choosing a replacement. Wheel diameter is part of that decision, since the covered NX300 range includes 17-inch, 18-inch, and 19-inch applications.
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2019 Lexus Trucks NX300 Base
The 2019 Lexus Trucks NX300 Base uses two radial fitments, covering both 17-inch and 18-inch wheel applications. That makes wheel confirmation especially important, because tire selection starts with matching the existing rim diameter before comparing product style or intended road use.
The 2019 Lexus Trucks NX300 F Sport uses 18-inch radial tires, but the exact size can differ within that wheel diameter. Tire selection therefore depends on confirming the precise F Sport setup rather than assuming every 18-inch NX300 uses the same width and profile.
2019 Lexus Trucks NX300 F Sport Black Line Special Edition
The 2019 Lexus Trucks NX300 F Sport Black Line Special Edition uses a single 19-inch radial fitment. For this sub-model, the main priority is preserving that 19-inch wheel-and-tire relationship and checking the actual wheel setup if the vehicle has been changed from stock.
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 2019 Lexus Trucks NX300 Tires for Sale
Available product choice for the 2019 Lexus Trucks NX300 currently centers on the 225/65R17 fitment, with a BFGoodrich All-Terrain T/A KO2 radial option featuring an RBL sidewall and a 6.0- to 8.0-inch rim-width range.
These FAQs focus on 2019 Lexus Trucks NX300 tire sizing by trim, wheel-diameter differences, radial fitment, product selection, and the practical checks that matter before replacing tires on a modern luxury crossover.
Tire Size & Fitment
What tire size fits a 2019 Lexus Trucks NX300?
The 2019 Lexus Trucks NX300 uses four primary tire sizes across its sub-model range: 225/65R17, 225/60R18, 235/55R18, and 235/50R19. All of them are radial sizes, and the correct one depends on the exact trim level and wheel package on the vehicle.
The most important next step is checking the sub-model and the actual wheel diameter already installed. A Base model can use either 17-inch or 18-inch fitment, F Sport models use 18-inch fitments with two possible sizes, and the F Sport Black Line Special Edition uses a 19-inch setup.
What size rim does a 2019 Lexus Trucks NX300 use?
A 2019 Lexus Trucks NX300 can use 17-inch, 18-inch, or 19-inch rims depending on the sub-model and tire size. The 225/65R17 size uses a 17-inch rim, both 225/60R18 and 235/55R18 use 18-inch rims, and 235/50R19 uses a 19-inch rim.
That range means rim diameter should be confirmed before any tire purchase. Even when two NX300 versions appear similar, the wrong wheel diameter immediately rules out the tire size, so checking the sidewall marking on the current tires or measuring the wheel is the safest place to start.
Why does the 2019 Lexus Trucks NX300 have more than one tire size?
The 2019 Lexus Trucks NX300 has more than one tire size because fitment changes across Base, F Sport, and F Sport Black Line Special Edition models. Those differences include changes in wheel diameter as well as width and profile within the 18-inch applications.
That matters because similar overall dimensions do not make these sizes interchangeable. A buyer should confirm the trim, inspect the current tire sidewall, and verify the wheel diameter before comparing replacement choices, especially on vehicles that may have had wheels or tires changed during previous ownership.
Choosing the Right Tire
What should I consider when choosing a 225/65R17 tire for a 2019 Lexus Trucks NX300?
Start with the basics: the vehicle must actually use the 225/65R17 size and a 17-inch rim. From there, compare construction, intended use, sidewall style, load specification, and rim-width compatibility, since those details shape whether the tire suits normal road driving or a more utility-focused role.
The available 225/65R17 product for this NX300 fitment is a BFGoodrich All-Terrain T/A KO2 radial with an RBL sidewall, a 6.0- to 8.0-inch rim-width range, and a maximum load of 2,150 lbs at 65 psi. That makes it important to match the tire to the wheel and the way the vehicle is actually driven.
What sidewall styles are available for 2019 Lexus Trucks NX300 tires?
For the currently available NX300 fitment products in this set, the visible sidewall style is RBL on the 225/65R17 BFGoodrich option. Sidewall style affects appearance first, but it should still be considered alongside the correct size, rim diameter, and intended use.
On a modern luxury crossover like the NX300, sidewall presentation can subtly shift the vehicle's visual character without changing the required fitment basics. The practical approach is to choose the correct tire size and wheel match first, then decide whether the available sidewall treatment suits the vehicle's look and usage.
What brands offer tires for the 2019 Lexus Trucks NX300?
The current product selection for the covered NX300 sizes includes BFGoodrich in the 225/65R17 fitment. That option is part of the All-Terrain T/A KO2 series and gives buyers a brand-specific choice within the correct radial size for vehicles using the 17-inch wheel application.
Brand should be compared after fitment, not before it. The better buying process is to confirm the exact tire size and wheel diameter on the NX300, then compare the available brand's tire series, sidewall style, load figure, and rim-width range to make sure the tire suits the vehicle's setup.
Restoration & Appearance
Does correct tire fitment matter for a 2019 Lexus Trucks NX300 restoration?
Yes. Even though the 2019 Lexus Trucks NX300 is a modern vehicle rather than a vintage restoration project, correct tire fitment still matters if the goal is returning the vehicle to a clean, proper factory-style presentation. The right size preserves the intended relationship between wheel diameter, sidewall profile, and overall stance.
A restoration-minded owner should first verify the exact sub-model, because NX300 fitment changes across Base, F Sport, and F Sport Black Line Special Edition versions. If originality matters beyond simple sizing, the safest approach is to compare the vehicle against marque references, original window documentation, or known wheel-package details.
How does tire construction affect the appearance of a restored 2019 Lexus Trucks NX300?
On the 2019 Lexus Trucks NX300, the primary fitments are radial tires, so construction choice is less about bias-ply versus radial appearance and more about preserving the proper size, profile, and wheel relationship. A 17-inch, 18-inch, or 19-inch setup changes the vehicle's visual balance immediately.
Appearance also comes from details like section width, aspect ratio, and sidewall treatment within the correct size. A restoration-oriented buyer should avoid treating close metric sizes as cosmetic substitutes, because even small changes in profile can alter how the NX300 sits and how authentic the finished presentation looks.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2019 Lexus Trucks NX300?
Yes. Modifications can change tire fitment on a 2019 Lexus Trucks NX300 even when the tire size appears close to stock. Aftermarket wheels, altered offsets, suspension changes, or previous-owner wheel swaps can all affect which size actually works on the vehicle and whether the original trim-based fitment still applies.
A careful check should include wheel diameter, wheel width, current tire size, and visible clearance at the fenders and suspension. That matters most on this NX300 because the model range already spans 17-inch, 18-inch, and 19-inch applications, so a modified vehicle should never be matched by trim name alone.
What should I inspect before driving a 2019 Lexus Trucks NX300 on new tires?
Before driving a 2019 Lexus Trucks NX300 on new tires, inspect the wheel condition, confirm the tire size matches the vehicle's actual wheel diameter, and check that each tire is seated and inflated correctly. It also makes sense to look over tread, sidewalls, and valve stems before putting regular miles on the vehicle.
Road use is smoother when the rest of the setup is healthy, so checking alignment condition, suspension wear, and any signs of rubbing is worthwhile. On an NX300 with more than one possible factory fitment, a quick final review of the sidewall size marking helps prevent driving on a mismatched installation.
How often should tires on a 2019 Lexus Trucks NX300 be inspected?
Tires on a 2019 Lexus Trucks NX300 should be inspected regularly, especially before longer trips and any time ride quality, steering feel, or air retention changes. A visual check for uneven wear, cuts, bulges, embedded debris, and sidewall damage helps catch problems before they become more serious.
Even a low-mile vehicle needs routine inspection because age, storage conditions, and long parked periods can affect tire condition. Keeping pressures consistent, checking for slow leaks, and confirming that all four tires remain the same intended size for the vehicle's wheel package are sensible habits for ongoing road use.
