2026 Acura MDX 3.5 V6 Base / Tech
The 2026 Acura MDX 3.5 V6 Base / Tech tire size and wheel specifications below reflect standard OEM reference fitment data for this trim level.
Detailed tire and wheel breakdown for the 2026 Acura MDX
Tire geometry â 255/50R20
The 255/50R20 fitted to the 2026 Acura MDX has a section width of 255mm and an aspect ratio of 50%, mounted on a 20-inch rim. That gives a sidewall height of 127.5mm (5.02") and an overall outside diameter of 763.0mm (30.04"). At highway speed this tire completes roughly 417 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 Acura MDX while keeping the speedometer accurate, target a 265/43R21 (plus-one). For a softer ride or winter setup, a 245/57R19 (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 Acura MDX uses a 5x120 bolt pattern with a 64.1mm hub bore. Safe rim width range for the OEM tire is 8.0J â 9.0J, and offsets in the ET50 â ET60 window will clear suspension and fender without rubbing on most setups.
Tire pressure guidance
Manufacturer-recommended cold tire pressure for the 2026 Acura MDX 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%.
Fitment Specifications
| Engine & Trim | Tire Size | Rim Size | Offset (ET) |
|---|---|---|---|
| 3.5 V6 Base / Tech | 255/50R20 | 20" x 8.5 | ET55 |
Frequently Asked Questions
What tire size does the 2026 Acura MDX 3.5 V6 Base / Tech use?
The 2026 Acura MDX 3.5 V6 Base / Tech uses 255/50R20 tires as standard equipment.
What is the bolt pattern of the 2026 Acura MDX 3.5 V6 Base / Tech?
The 2026 Acura MDX 3.5 V6 Base / Tech has a 5x120 bolt pattern with a center bore of 64.1mm.
What is the wheel offset of the 2026 Acura MDX 3.5 V6 Base / Tech?
The 2026 Acura MDX 3.5 V6 Base / Tech has a wheel offset of ETET55.