2018 Lexus NX Tire Size
The 2018 Lexus NX came with 225/65R17, 225/60R18 or 235/55R18 tires, depending on the trim and wheel size. Recommended cold pressure: 32 to 35 psi depending on size.
Not sure which one you have? Read the size off your tire's sidewall, or check the label on the driver's door jamb. How to read a tire size.
✓ From the manual ·2018 Lexus NX owner's manual, p. 391, 392
Factory tire sizes
- Width
- 225 mm (8.9 in)
- Wheel
- 17 in · 17 x 7 J
- Overall diameter
- 28.5 in
- Cold pressure
- 35 psi
- Load index
- 102 (1,874 lb)
- Speed rating
- H (up to 130 mph)
- Width
- 225 mm (8.9 in)
- Wheel
- 18 in · 18 x 7 1/2 J
- Overall diameter
- 28.6 in
- Cold pressure
- 32 psi
- Load index
- 100 (1,764 lb)
- Speed rating
- H (up to 130 mph)
- Width
- 235 mm (9.3 in)
- Wheel
- 18 in · 18 x 7 1/2 J
- Overall diameter
- 28.2 in
- Cold pressure
- 32 psi
- Load index
- 100 (1,764 lb)
- Speed rating
- V (up to 149 mph)
Spare tire
- Width
- 165 mm (6.5 in)
- Wheel
- 17 in
- Overall diameter
- 27.4 in
- Load index
- 104 (1,984 lb)
- Speed rating
- M (up to 81 mph)
A temporary spare is for short trips at reduced speed, usually no faster than 50 mph. Follow the limit printed on the spare and in your manual, and replace the flat as soon as you can.
Questions
What size tires does a 2018 Lexus NX have?
The 2018 Lexus NX came with 225/65R17, 225/60R18 or 235/55R18 tires, depending on the trim and wheel size.
Which size is on my 2018 Lexus NX?
Look at the sidewall of one of your tires: the size is the code that looks like 225/65R17. The label on the driver's door jamb also lists the original size and pressure for your exact trim.
What tire pressure does a 2018 Lexus NX need?
The manual gives 32 to 35 psi depending on size, measured with the tires cold. Check it before driving, and go by the door-jamb label if it differs, because that is set for your exact car.
Can I fit a different tire size on my 2018 Lexus NX?
Stick to a factory size for your wheel unless a tire shop confirms the swap. A different overall diameter changes speedometer readings and can upset ABS and stability control, and the load index must be at least the original.