2023 Lexus RZ Tire Size
The 2023 Lexus RZ uses different sizes front and rear: 235/60R18 or 235/50R20 at the front and 255/55R18 or 255/45R20 at the rear. Recommended cold pressure: 35 to 38 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 ·2023 Lexus RZ owner's manual, p. 572
Factory tire sizes
- Width
- 235 mm (9.3 in)
- Wheel
- 18 in · 18 x 7 1/2 J
- Overall diameter
- 29.1 in
- Cold pressure
- 38 psi
- Load index
- 103 (1,929 lb)
- Speed rating
- V (up to 149 mph)
Fitted to: Vehicles with 18-inch wheels
- Width
- 235 mm (9.3 in)
- Wheel
- 20 in · 20 x 8 J
- Overall diameter
- 29.3 in
- Cold pressure
- 38 psi
- Load index
- 104 (1,984 lb)
- Speed rating
- V (up to 149 mph)
Fitted to: Vehicles with 20-inch wheels
- Width
- 255 mm (10 in)
- Wheel
- 18 in · 18 x 8 J
- Overall diameter
- 29 in
- Cold pressure
- 38 psi
- Load index
- 105 (2,039 lb)
- Speed rating
- V (up to 149 mph)
Fitted to: Vehicles with 18-inch wheels
- Width
- 255 mm (10 in)
- Wheel
- 20 in · 20 x 9 1/2 J
- Overall diameter
- 29 in
- Cold pressure
- 35 psi
- Load index
- 105 (2,039 lb)
- Speed rating
- W (up to 168 mph)
Fitted to: Vehicles with 20-inch wheels
Questions
What size tires does a 2023 Lexus RZ have?
The 2023 Lexus RZ uses different sizes front and rear: 235/60R18 or 235/50R20 at the front and 255/55R18 or 255/45R20 at the rear.
Which size is on my 2023 Lexus RZ?
Look at the sidewall of one of your tires: the size is the code that looks like 235/60R18. The label on the driver's door jamb also lists the original size and pressure for your exact trim.
What tire pressure does a 2023 Lexus RZ need?
The manual gives 35 to 38 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 2023 Lexus RZ?
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.