2026 Hyundai Ioniq 9 Tire Size
The 2026 Hyundai Ioniq 9 came with 255/60R19, 275/50R20 or 285/45R21 tires, depending on the trim and wheel size. Recommended cold pressure: 38 to 39 psi front, 39 to 40 psi rear 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 ·2026 Hyundai Ioniq 9 owner's manual, p. 650
Factory tire sizes
- Width
- 255 mm (10 in)
- Wheel
- 19 in · 8.0 J x 19
- Overall diameter
- 31 in
- Cold pressure
- 39 psi front, 40 psi rear
- Width
- 275 mm (10.8 in)
- Wheel
- 20 in · 8.0 J x 20
- Overall diameter
- 30.8 in
- Cold pressure
- 38 psi front, 39 psi rear
- Width
- 285 mm (11.2 in)
- Wheel
- 21 in · 9.0 J x 21
- Overall diameter
- 31.1 in
- Cold pressure
- 38 psi front, 39 psi rear
Questions
What size tires does a 2026 Hyundai Ioniq 9 have?
The 2026 Hyundai Ioniq 9 came with 255/60R19, 275/50R20 or 285/45R21 tires, depending on the trim and wheel size.
Which size is on my 2026 Hyundai Ioniq 9?
Look at the sidewall of one of your tires: the size is the code that looks like 255/60R19. The label on the driver's door jamb also lists the original size and pressure for your exact trim.
What tire pressure does a 2026 Hyundai Ioniq 9 need?
The manual gives 38 to 39 psi front, 39 to 40 psi rear 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 2026 Hyundai Ioniq 9?
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.