What size tyres are on a Lexus NX?
There isn’t a single universal tyre size for the Lexus NX; it varies by model year, trim level and wheel option. In practice, most current NX models use 18-, 19-, or 20-inch wheels, with corresponding tyres chosen to match the wheel diameter. To know the exact size for your car, check the door jamb placard, the owner's manual, or the current tire sidewall.
How tyre sizing works on the Lexus NX
Tyre sizes are printed as a three-number code on the sidewall (for example, 235/60R18). The first number is the width in millimetres, the second is the aspect ratio (the height of the sidewall as a percentage of the width), and the final number is the wheel diameter in inches. For the NX, the offered wheel diameters—and thus tyre sizes—depend on trim and market, so the exact figures can vary.
Common wheel sizes you may encounter
These are typical factory combinations you might see on many 18-, 19-, and 20-inch NX configurations. The exact size for your vehicle may differ based on year, trim, and market. Always verify on the placard or in the manual.
- 18-inch wheels: commonly around 235/60R18
- 19-inch wheels: commonly around 235/50R19
- 20-inch wheels: commonly around 235/45R20
Again, these figures are representative rather than universal. If you are replacing tires, use OEM-recommended sizes or consult a professional to ensure proper fit and performance.
How to confirm the exact size on your NX
Find the exact tire size by checking:
- The driver’s door jamb placard (the label shows the recommended size for front and rear tires).
- The owner’s manual for the original specification for your trim and market.
- The sidewall of the current tires (the size is molded into the tyre). If you plan to replace all four tires, ensure you match the size for the best balance and handling; if you mix sizes, consult a professional.
Note: Spare tires (the “donut” or space-saver) often use a smaller size or a dedicated volume; follow the manufacturer’s guidance for temporary use.
What to do if you’re replacing tyres
Stick to OEM recommendations whenever possible. If you must use a different size, ensure the overall diameter remains within a reasonable tolerance (to preserve speedometer accuracy and ABS/traction control functions) and confirm load capacity and speed rating. After changing tires, recheck wheel alignment and tire pressures.
Summary
The Lexus NX does not have a single universal tyre size. It depends on the model year, trim level, and market, with common factory configurations using 18-, 19-, or 20-inch wheels. To be sure, check the door placard, owner's manual, or the tire sidewall, and consult your dealer or tire professional if you’re replacing tires or fitting winter tires. By confirming the exact spec, you ensure proper fit, safety, and performance.
