The 2021 Lexus Trucks NX300 sits in the modern compact luxury crossover segment, where everyday drivability, refined road manners, and sharp trim differences all influence tire choice. Buyers looking at this exact NX300 are usually balancing original-size fitment with the realities of replacement selection on a vehicle that may wear different wheels depending on trim. This model uses radial tire fitments in 225/65R17, 225/60R18, and 235/55R18. That makes the first decision a fitment decision tied to sub-model and wheel diameter rather than brand alone. Once the correct size is confirmed, the focus shifts to intended use, tire style, and preserving proper clearance and overall stance.
Which Tire Size Is Right for The 2021 Lexus Trucks NX300
Three tire sizes apply to the 2021 Lexus Trucks NX300, and the correct choice depends on the exact sub-model and wheel diameter. Two sizes use an 18-inch rim and one uses a 17-inch rim, so confirming the actual wheel setup comes first. After that, the decision becomes selecting the right radial tire within the proper size for the vehicle's trim and intended road use.
225/60R18 is a metric radial size in which 225 identifies the nominal section width in millimeters, 60 is the aspect ratio, R designates radial construction, and 18 is the rim diameter in inches. On the 2021 Lexus Trucks NX300, this size serves as one of the main 18-inch fitments and appears across more than one sub-model. Its role is centered on preserving the intended wheel diameter and overall fitment package for trims equipped with 18-inch wheels. Buyers considering this size should confirm the exact trim and wheel setup before comparing tire choices.
225/65R17 is a metric radial size with a 225-millimeter nominal section width, a 65-series profile, radial construction, and a 17-inch rim diameter. On the 2021 Lexus Trucks NX300, this size is tied to 17-inch wheel fitment rather than the 18-inch setups used elsewhere in the range. Available product choice in this size includes a BFGoodrich All Terrain T/A KO2 with an RBL sidewall treatment and a 6.0 to 8.0 inch rim-width range. This size is worth evaluating carefully if the NX300 has 17-inch wheels and a more utility-focused tire character is the goal.
235/55R18 is a metric radial size where 235 indicates nominal section width in millimeters, 55 is the aspect ratio, R marks radial construction, and 18 identifies rim diameter. Within the 2021 Lexus Trucks NX300 lineup, this size is a specific 18-inch fitment rather than a universal choice for every sub-model. Compared with the 225-section 18-inch option, it represents a distinct fitment that should be matched to the correct trim and wheel arrangement. Buyers should use this size only after confirming the vehicle's exact sub-model and existing wheel diameter.
Tire fitment on the 2021 Lexus Trucks NX300 varies by sub-model, and some trims can use more than one size depending on wheel setup. Checking the exact trim matters here because both tire size and rim diameter can change within the same model line.
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2021 Lexus Trucks NX300 Base
The 2021 Lexus Trucks NX300 Base can use either a 225/60R18 radial or a 225/65R17 radial, so wheel diameter is part of the fitment decision. Tire selection starts with confirming whether the vehicle is on 17-inch or 18-inch wheels before comparing tread style or overall tire character.
The 2021 Lexus Trucks NX300 F Sport uses 18-inch tire fitments, with either 225/60R18 or 235/55R18 radial sizing depending on configuration. That makes exact size confirmation especially important before replacement, since both choices share rim diameter but differ in section width and profile.
The 2021 Lexus Trucks NX300 Luxury uses 225/60R18 radial tires, making fitment more straightforward than trims with multiple size possibilities. Once that size is confirmed on the vehicle, the main focus becomes choosing a tire that matches the intended use and preserves proper 18-inch wheel 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 2021 Lexus Trucks NX300 Tires for Sale
Available product choice for the 2021 Lexus Trucks NX300 is currently centered on 225/65R17, with a BFGoodrich All Terrain T/A KO2 radial featuring an RBL sidewall and a 6.0 to 8.0 inch rim-width range. That gives buyers a clearly utility-focused option to compare against the vehicle's intended use.
Owners of a 2021 Lexus Trucks NX300 usually need to confirm tire size by trim and wheel diameter first, then compare radial tire choices. The questions below focus on fitment, rim compatibility, product selection, appearance, and road-use checks.
Tire Size & Fitment
What tire size fits a 2021 Lexus Trucks NX300?
The 2021 Lexus Trucks NX300 uses three tire sizes across the model range: 225/60R18, 225/65R17, and 235/55R18. All three are radial sizes, and the correct one depends on the specific sub-model and wheel package on the vehicle.
Choosing the right size starts with confirming the trim and the actual wheel diameter already on the NX300. Since this model can use either 17-inch or 18-inch wheels, the safest approach is to verify the tire sidewall and wheel before selecting a replacement, especially if the vehicle has had prior tire or wheel changes.
What size rim does a 2021 Lexus Trucks NX300 use?
The 2021 Lexus Trucks NX300 uses either a 17-inch or 18-inch rim, depending on the tire size and sub-model configuration. The 225/65R17 size fits a 17-inch rim, while 225/60R18 and 235/55R18 are both designed for 18-inch rims.
That distinction matters because tire size cannot be separated from wheel diameter. An NX300 equipped with 17-inch wheels needs a 17-inch tire, and an 18-inch setup needs an 18-inch tire. Checking the wheel itself is especially important on vehicles that may have changed hands or received aftermarket wheels since new.
Do all 2021 Lexus Trucks NX300 sub-models use the same tire size?
No. The 2021 Lexus Trucks NX300 sub-models do not all use the same tire size. The Base can use 225/60R18 or 225/65R17, the F Sport can use 225/60R18 or 235/55R18, and the Luxury uses 225/60R18.
That means trim identification is part of proper replacement fitment on this model. Even when two sizes share the same 18-inch rim diameter, they are still different fitments. Matching the new tires to the exact configuration on the vehicle helps preserve clearance, intended proportions, and correct wheel-to-tire compatibility.
Choosing the Right Tire
What should I consider when choosing a tire for a 2021 Lexus Trucks NX300?
Start with the exact tire size already fitted to the 2021 Lexus Trucks NX300, then confirm the wheel diameter and trim. This model uses 225/65R17, 225/60R18, or 235/55R18, so the first step is always matching the correct fitment rather than comparing tires across sizes.
After size is confirmed, focus on how the vehicle is actually used. A more road-oriented NX300 may call for a different tire character than one seeing rougher surfaces, and any replacement should still match the wheel dimensions, load needs, and available clearance on the vehicle as it currently sits.
What sidewall styles are available for 2021 Lexus Trucks NX300 tires?
For the currently available 225/65R17 product option tied to the 2021 Lexus Trucks NX300, the sidewall style is RBL. That gives this fitment a more utility-oriented presentation than a decorative whitewall or vintage-style sidewall treatment.
Sidewall style matters mostly for appearance and how closely the tire matches the look you want from the vehicle. On a modern luxury crossover like the NX300, it also helps to consider whether the sidewall presentation suits the wheel design and intended use, especially if the vehicle is used beyond normal pavement driving.
What brands offer tires for the 2021 Lexus Trucks NX300?
Current product availability for the 2021 Lexus Trucks NX300 includes BFGoodrich in 225/65R17. That option is part of the All Terrain T/A KO2 series and is built as a radial tire for a 17-inch wheel setup.
Brand choice only matters after the correct fitment is nailed down. Since the NX300 uses multiple sizes across its trim range, it is better to confirm the exact tire size first and then compare the available brand, series, sidewall style, rim-width range, and overall tire character within that size.
Restoration & Appearance
Which tire should I choose for a period-style 2021 Lexus Trucks NX300?
A 2021 Lexus Trucks NX300 is better approached as a trim-appropriate modern fitment choice than a period-style restoration exercise. The right starting point is the vehicle's exact radial size, which may be 225/65R17, 225/60R18, or 235/55R18 depending on the trim and wheel setup.
Appearance still matters, but on this model it usually comes down to preserving the proper wheel-and-tire proportions rather than chasing a vintage look. Keeping the correct size and profile helps the NX300 retain the stance intended for its specific configuration, especially on F Sport and Luxury trims where visual balance is part of the package.
Does correct tire fitment matter for a 2021 Lexus Trucks NX300 restoration or cosmetic refresh?
Yes. Even on a newer vehicle such as the 2021 Lexus Trucks NX300, correct tire fitment matters when refreshing the vehicle's appearance. Using the proper size for the trim keeps the wheel openings, sidewall height, and overall stance closer to the way the vehicle was configured for that setup.
Cosmetic work can be undermined by the wrong profile or wheel diameter, even if the tires physically mount to the vehicle. Matching the correct 17-inch or 18-inch fitment is the foundation, and from there the buyer can evaluate sidewall presentation and tire character in a way that still respects the NX300's original proportions.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2021 Lexus Trucks NX300?
Yes. Modifications can affect tire fitment on a 2021 Lexus Trucks NX300, especially when they involve wheel changes, suspension adjustments, or altered ride height. This model already uses more than one factory-size combination, so aftermarket changes can complicate replacement selection quickly.
A modified NX300 should be checked for actual wheel diameter, wheel width, and clearance at the fender and steering points before new tires are chosen. Even within the correct general size family, differences in the current setup can matter, so measuring the vehicle as it sits is more useful than relying on trim alone.
What should I inspect before driving a 2021 Lexus Trucks NX300 on new tires?
Before driving a 2021 Lexus Trucks NX300 on new tires, inspect wheel condition, verify that the tire size matches the vehicle's actual setup, and confirm proper inflation. It also helps to look over the suspension and steering for obvious wear that could affect how the new tires track and wear.
A short initial check after installation is worthwhile as well. Watch for rubbing at full steering lock, unusual vibration, or uneven stance from side to side. Catching a fitment or mechanical issue early helps protect the new tires and gives a clearer picture of whether the vehicle's wheel-and-tire package is working as intended.
How often should tires on a 2021 Lexus Trucks NX300 be inspected?
Tires on a 2021 Lexus Trucks NX300 should be inspected regularly, not just when tread looks low. Pressure, tread wear pattern, cuts, bulges, and sidewall damage are all worth checking, especially on a vehicle that may see mixed use or seasonal driving patterns.
Routine inspection is even more important when the NX300 has multiple possible tire sizes across its trim range, because a mismatch can sometimes go unnoticed until wear or clearance issues appear. Looking over the tires during pressure checks and before longer drives helps catch aging, damage, or improper replacement choices before they become larger problems.
