2026 Mazda CX-90 Bolt Pattern & Tire Size
The 2026 Mazda CX-90 OEM tire size, bolt pattern, and wheel specifications are listed below. All data is based on industry-standard OEM reference specifications.
The 2026 Mazda CX-90 has a 5x114.3 bolt pattern, an OEM tire size of 275/45R21, and a 67.1mm center bore.
Other years of the Mazda CX-90
2026 Mazda CX-90 Engine & Trim Levels
Detailed tire and wheel breakdown for the 2026 Mazda CX-90
Tire geometry â 275/45R21
The 275/45R21 fitted to the 2026 Mazda CX-90 has a section width of 275mm and an aspect ratio of 45%, mounted on a 21-inch rim. That gives a sidewall height of 123.8mm (4.87") and an overall outside diameter of 780.9mm (30.74"). At highway speed this tire completes roughly 408 revolutions per kilometre, which is what your speedometer and odometer are calibrated against.
Plus-sizing window
If you want to upsize wheels on the 2026 Mazda CX-90 while keeping the speedometer accurate, target a 285/39R22 (plus-one). For a softer ride or winter setup, a 265/51R20 (minus-one) keeps the overall diameter within Âą3% of stock, which is the industry tolerance for ABS and stability control to stay calibrated.
Wheel fitment specs
The 2026 Mazda CX-90 uses a 5x114.3 bolt pattern with a 67.1mm hub bore. Safe rim width range for the OEM tire is 9.0J â 10.0J, and offsets in the ET40 â ET50 window will clear suspension and fender without rubbing on most setups.
Tire pressure guidance
Manufacturer-recommended cold tire pressure for the 2026 Mazda CX-90 is printed on the driver-side door jamb sticker â always defer to that value, not to the maximum pressure printed on the tire sidewall. Check pressure monthly and before long trips; under-inflation by 20% can reduce tread life by 25%.
OEM Wheel & Tire Specs
| Engine & Trim | Tire Size | Rim Size | Offset (ET) | |
|---|---|---|---|---|
| Turbo S Premium Plus | 21x9.5J | ET45 |
Frequently Asked Questions
What tire size does the 2026 Mazda CX-90 Turbo S Premium Plus use?
The 2026 Mazda CX-90 Turbo S Premium Plus uses 275/45R21 tires as standard equipment.
What is the bolt pattern of the 2026 Mazda CX-90?
The 2026 Mazda CX-90 has a 5x114.3 bolt pattern with a center bore of 67.1mm.
What is the wheel offset of the 2026 Mazda CX-90?
The 2026 Mazda CX-90 has a wheel offset of ET45.
Other Vehicles with 5x114.3 Bolt Pattern
The following vehicles share the same 5x114.3 bolt pattern as the 2026 Mazda CX-90, making wheel interchangeability possible (verify offset and center bore before swapping).