Buick Excelle GX Bolt Pattern, Center Bore & Wheel Offset (2018–2021)
Buick Excelle GX wheel fitment: 5x105 bolt pattern, 56.6mm center bore (2018–2021). OE wheel sizes and offsets for every Excelle GX variant we cover (4 guides
- 5x105bolt pattern (PCD)
- 56.6 mmcenter bore
- M12x1.5 Nutwheel bolt / nut
- 4 guidesmodel years 2018–2021
Buick Excelle GX wheel specs by year and trim
| Year | Model / trim | Bolt pattern | Center bore | OE wheel |
|---|---|---|---|---|
| 2021 | Buick Excelle GX | 5x105 | 56.6 mm | 16x6.5J |
| 2020 | Buick Excelle GX | 5x105 | 56.6 mm | 16x6.5J |
| 2019 | Buick Excelle GX | 5x105 | 56.6 mm | 16x6.5J |
| 2018 | Buick Excelle GX | 5x105 | 56.6 mm | 16x6.5J |
Factory wheel sizes on the Buick Excelle GX
Across the 4 Buick Excelle GX trims with a documented factory wheel, the OE diameter is 16 inch, width 6.5J. A forged wheel that keeps the 5x105 bolt pattern and the 56.6 mm hub bore and matches the factory offset listed on the model page bolts on without spacers or hub rings. Going one inch up in diameter with a lower-profile tyre keeps the rolling circumference inside the usual 1.5% tolerance; every extra 0.5J of width moves the outer lip about 6 mm outward at the same offset, and each 5 mm less offset moves the whole wheel 5 mm outward.
Forged wheels for the Buick Excelle GX (5x105)
Get a quote for Buick Excelle GX wheels
Vehicles With the Same Hub as the Buick Excelle GX (5x105, 56.6 mm Bore)
In our database, 21 other vehicle entries from 3 makes use exactly the same 5x105 bolt pattern and 56.6 mm center bore. Factory wheels from these cars bolt on and center on the hub without rings; offset and width still have to be checked.
5x105 is used by 0.6% of the vehicle entries in our database (37 of 6,503); 100.0% of those also use a 56.6 mm center bore.
Hub-Centric Rings for a 56.6 mm Center Bore
A wheel with a center bore larger than 56.6 mm needs a hub-centric ring. The most common combinations:
| Wheel bore | Ring size |
|---|---|
| 57.1 mm | 57.1 → 56.6 mm |
| 60.1 mm | 60.1 → 56.6 mm |
| 63.4 mm | 63.4 → 56.6 mm |
| 64.1 mm | 64.1 → 56.6 mm |
| 73.1 mm | 73.1 → 56.6 mm |
ANKUSI forged wheels are bored to exactly 56.6 mm for this vehicle, so no ring is needed.
Sources and Last Update
Bolt pattern and center bore were checked against at least two independent fitment references before publication.
This record is part of the open ANKUSI Wheel Fitment Dataset (DOI 10.5281/zenodo.23241521, CC BY 4.0).
Compiled by the ANKUSI Wheels engineering team, an IATF 16949 and ISO 9001 certified forged wheel factory in Guangzhou.
FAQ
What is the bolt pattern on a Buick Excelle GX?
The Buick Excelle GX uses a 5x105 bolt pattern with a 56.6mm center bore across every Excelle GX variant in our database (4 guides, 2018–2021).
What is the Buick Excelle GX center bore?
The hub-centric center bore is 56.6 mm. Aftermarket wheels should match this bore or use hub-centric rings so the hub, not the bolts, carries the load.
Do all Buick Excelle GX years share the same wheel fitment?
The bolt pattern and center bore are the same across the years we cover, but OE wheel width and offset differ by trim, so check the exact model line before choosing an aftermarket size.
Which forged wheels fit the Buick Excelle GX?
Any wheel drilled 5x105 with a 56.6mm hub bore in the offset range shown on the model guide. ANKUSI forges wheels to order for this exact specification, in 14–24 inch diameters, so no adapters or hub rings are needed.