2024 Buick Enclave Avenir
The 2024 Buick Enclave Avenir tire size and wheel specifications below reflect standard OEM reference fitment data for this trim level.
Detailed tire and wheel breakdown for the 2024 Buick Enclave
Tire geometry â 255/55R20
The 255/55R20 fitted to the 2024 Buick Enclave has a section width of 255mm and an aspect ratio of 55%, mounted on a 20-inch rim. That gives a sidewall height of 140.3mm (5.52") and an overall outside diameter of 788.5mm (31.04"). At highway speed this tire completes roughly 404 revolutions per kilometre, which is what your speedometer and odometer are calibrated against.
Plus-sizing window
If you want to upsize wheels on the 2024 Buick Enclave while keeping the speedometer accurate, target a 265/48R21 (plus-one). For a softer ride or winter setup, a 245/62R19 (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 2024 Buick Enclave uses a 6x120 bolt pattern with a 66.9mm hub bore. Safe rim width range for the OEM tire is 7.5J â 8.5J, and offsets in the ET45 â ET55 window will clear suspension and fender without rubbing on most setups.
Tire pressure guidance
Manufacturer-recommended cold tire pressure for the 2024 Buick Enclave 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) |
|---|---|---|---|
| Avenir | 255/55R20 | 20" x 8.0 | ET50 |
Frequently Asked Questions
What tire size does the 2024 Buick Enclave Avenir use?
The 2024 Buick Enclave Avenir uses 255/55R20 tires as standard equipment.
What is the bolt pattern of the 2024 Buick Enclave Avenir?
The 2024 Buick Enclave Avenir has a 6x120 bolt pattern with a center bore of 66.9mm.
What is the wheel offset of the 2024 Buick Enclave Avenir?
The 2024 Buick Enclave Avenir has a wheel offset of ETET50.