2021 Buick Encore Bolt Pattern & Tire Size
The 2021 Buick Encore OEM tire size, bolt pattern, and wheel specifications are listed below. All data is based on industry-standard OEM reference specifications.
The 2021 Buick Encore has a 5x105 bolt pattern, an OEM tire size of 215/55R18, and a 56.6mm center bore.
Other years of the Buick Encore
2021 Buick Encore Engine & Trim Levels
Detailed tire and wheel breakdown for the 2021 Buick Encore
Tire geometry â 215/55R18
The 215/55R18 fitted to the 2021 Buick Encore has a section width of 215mm and an aspect ratio of 55%, mounted on a 18-inch rim. That gives a sidewall height of 118.3mm (4.66") and an overall outside diameter of 693.7mm (27.31"). At highway speed this tire completes roughly 459 revolutions per kilometre, which is what your speedometer and odometer are calibrated against.
Plus-sizing window
If you want to upsize wheels on the 2021 Buick Encore while keeping the speedometer accurate, target a 225/47R19 (plus-one). For a softer ride or winter setup, a 205/64R17 (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 2021 Buick Encore uses a 5x105 bolt pattern with a 56.6mm hub bore. Safe rim width range for the OEM tire is 6.5J â 7.5J, and offsets in the ET33 â ET43 window will clear suspension and fender without rubbing on most setups.
Tire pressure guidance
Manufacturer-recommended cold tire pressure for the 2021 Buick Encore 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) | |
|---|---|---|---|---|
| Base / Preferred | 18x7.0J | ET38 |
Frequently Asked Questions
What tire size does the 2021 Buick Encore Base / Preferred use?
The 2021 Buick Encore Base / Preferred uses 215/55R18 tires as standard equipment.
What is the bolt pattern of the 2021 Buick Encore?
The 2021 Buick Encore has a 5x105 bolt pattern with a center bore of 56.6mm.
What is the wheel offset of the 2021 Buick Encore?
The 2021 Buick Encore has a wheel offset of ET38.
Other Vehicles with 5x105 Bolt Pattern
The following vehicles share the same 5x105 bolt pattern as the 2021 Buick Encore, making wheel interchangeability possible (verify offset and center bore before swapping).