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What is the tyre size of NX?

The tyre size for the NX varies by model year and trim, so there isn't a single universal size. The correct size for your car is printed on the door jamb placard or in the owner's manual.


Understanding tyre sizing on the Lexus NX


Tyre sizing is a combination of width, aspect ratio, diameter, and load/speed rating. For the NX, the most important numbers are the width (first number), the aspect ratio (second, as a percentage), and the wheel diameter (R followed by the number). The size can appear as something like 235/55R18, but the actual values depend on your car’s configuration.


The following factors influence the correct tyre size for your NX:



  • Model year and trim level (these determine the standard wheel size and recommended tyre profile)

  • Wheel size option installed by the factory (18", 19" or larger) and any regional market specifications

  • Aftermarket wheel replacements or suspension changes that alter diameter or clearance

  • Availability of run-flat tyres or alternative tire types as supplied by the manufacturer


In practice, always rely on the placard on the driver's door jamb or the owner's manual. If in doubt, confirm with a Lexus dealer or a trusted tire professional.


How to find the exact tyre size for your NX


To determine the precise tyre size for your specific NX, follow these steps:



  1. Inspect the door jamb placard: it lists the standard tyre size, current tire dimensions, and inflation pressures for front and rear wheels.

  2. Read the tire sidewall: the size code is printed on the sidewall of each tire (for example, P235/55R18). If you’re replacing just one tire, match the size shown on the existing tire.

  3. Consult the owner's manual: it includes recommended tyre sizes for various trims and wheel configurations.

  4. Use a VIN-based lookup or official Lexus online resources: many manufacturers offer vehicle-specific tyre size data by VIN or model, which can be helpful for market-specific configurations.

  5. If in doubt, consult your local Lexus dealer or a qualified tire shop: they can verify compatibility and clearance with your specific NX configuration.


Knowing the exact tyre size is essential for safe handling, fuel efficiency, and warranty compliance. Mismatched sizes can affect speedometer accuracy, ABS functioning, and ride quality.


Why tyre size matters for safety and performance


Using tyres that do not match the OEM specification can lead to altered handling, longer braking distances, and adverse effects on safety systems. Always aim to use tyres that match the manufacturer’s recommended size for your NX’s trim and wheel setup.


Summary


There isn’t a single universal tyre size for the Lexus NX. Sizes vary by model year, trim, and wheel option. To ensure you have the correct tyres, check the door jamb placard, inspect the current tire sidewalls, consult the owner's manual, or contact a Lexus dealer. When replacing tyres, match the OEM size for your specific NX configuration to maintain safety and performance.

What size tires are on the NX?


The Lexus NX tire size varies by model year and trim, but common options include 235/60R18, 235/50R20, and 225/60R18. Older models may use sizes like 225/65R17 or 235/55R18. It is best to check the driver's side door jamb for the exact original equipment (OE) tire size for your specific vehicle. 
Common tire sizes by trim and model

  • 235/60R18: Frequently found on base models and some packages. 
  • 235/50R20: Typically used on higher trims with 20-inch wheels, such as the Luxury or F SPORT packages. 
  • 225/60R18: A common size for models like the NX200t. 
  • 225/65R17: Seen on some earlier NX200t models with 17-inch wheels. 
  • 235/55R18: Another size found on earlier models. 

How to find your exact tire size
  • Check the sticker on the driver's side door jamb. This is the most accurate place to find your vehicle's specific OE tire size and recommended pressure. 
  • Look at the sidewall of your current tires. The size will be printed there in the format PXXX/XXRXX. 



What size tires are on a 2018 Lexus NX200t?


The Lexus NX200t will typically come with a couple of tire sizes depending on your year and trim, which can include: 225/65R17 tires. 235/55R18 tires. 225/60R18 tires.



Is the Lexus NX just a RAV4?


No, the Lexus NX is not just a RAV4; it is a more luxurious and refined compact SUV that shares a platform with the Toyota RAV4 but differentiates itself with premium materials, different engine options, more advanced technology, and a higher price point. While both are built on the same TNGA-K platform, the NX offers a more upscale experience and performance variations. 
Key differences 
This video highlights the differences in size and cargo space between the Lexus NX and Toyota RAV4: 54sJosh on CarsYouTube · Apr 9, 2023

Feature Lexus NX Toyota RAV4
Design and Interior Focuses on luxury with premium materials, a more upscale interior design, and a sportier, coupe-like exterior. Emphasizes practicality and utility with a more traditional, boxy SUV design.
Powertrain Offers more engine options, including turbocharged and plug-in hybrid variants, with higher horsepower outputs on some models. Provides fewer engine options but includes a very popular hybrid powertrain.
Technology Features more premium technology, such as larger touchscreens, available head-up displays, and more advanced safety systems on some trims. Offers capable and practical technology, with features like a 10.5-inch touchscreen standard on many models.
Price and Value Has a higher starting price, requires premium fuel, and comes with a higher cost of ownership. Is more budget-friendly and a better value, with lower depreciation and better fuel efficiency.
Space Generally has less cargo space and a tighter rear seat compared to the RAV4 due to its sportier design. Offers more cargo space and a more spacious interior due to its taller and more utilitarian design.
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Is the Lexus NX the same size as a CRV?


The Honda CR-V is larger than the Lexus NX, especially in cargo space, with significantly more room both with the rear seats up and folded down. For example, the CR-V offers 39.339.339.3 cubic feet of cargo space behind the rear seats compared to the NX's 22.722.722.7 cubic feet. When the rear seats are folded, the CR-V has 76.576.576.5 cubic feet of maximum cargo space, while the NX has 46.946.946.9 cubic feet.
 
This video compares the cargo space of the 2024 Toyota RAV4 Hybrid, Honda CR-V Hybrid, and Lexus NX 350h: 16sCar Help CornerYouTube · Dec 24, 2023

Feature Honda CR-V Lexus NX
Cargo Space (behind rear seats) 39.339.339.3 cubic feet 22.722.722.7 cubic feet
Maximum Cargo Space (rear seats folded) 76.576.576.5 cubic feet 46.946.946.9 cubic feet
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  • The CR-V also has a lower lift-over height for easier loading, measuring 282828 inches compared to the NX's 30.830.830.8 inches. 
  • While the NX is a compact luxury SUV, the CR-V is a practical compact SUV that is generally seen as having more overall interior and cargo volume. 


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.