Chevrolet Corvette Grand Bolt Pattern, Center Bore & Wheel Offset (2010–2027)
Chevrolet Corvette Grand wheel fitment: 5x120 bolt pattern, 66.9mm center bore; 5x120.65 bolt pattern, 70.3mm center bore (2010–2017).
- 5x120bolt pattern (PCD), most common
- 66.9 mmcenter bore
- M12x1.5 Nutwheel bolt / nut
- 6 guidesmodel years 2010–2027
Bolt pattern by generation
- 5x120, 66.9 mm center bore — 2027 (3 variants)
- 5x120.65, 70.3 mm center bore — 2010–2017 (3 variants)
Chevrolet Corvette Grand wheel specs by year and trim
| Year | Model / trim | Bolt pattern | Center bore | OE wheel |
|---|---|---|---|---|
| 2027 | Chevrolet Corvette Grand Sport | 5x120 | 66.9 mm | 20x10.0J |
| 2027 | Chevrolet Corvette Grand Sport X | 5x120 | 66.9 mm | 20x10.0J |
| 2027 | Corvette Grand Sport X | 5x120 | 66.9 mm | 20x10.0J ET40 |
| 2017 | Chevrolet Corvette Grand Sport | 5x120.65 | 70.3 mm | 19x10.0J |
| 2017 | Chevrolet Corvette Grand Sport Indy 500 Pace | 5x120.65 | 70.3 mm | 19x10.0J |
| 2010 | Chevrolet Corvette Grand Sport | 5x120.65 | 70.3 mm | 18x9.5J |
Factory wheel sizes on the Chevrolet Corvette Grand
Across the 6 Chevrolet Corvette Grand trims with a documented factory wheel, the OE diameter is 18-20 inch, width 9.5-10J and offset ET40. A forged wheel that keeps the bolt pattern and hub bore of your generation (see the table above) and stays inside that offset range 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 Chevrolet Corvette Grand (5x120)
Shop all Chevrolet Corvette Grand forged wheels →
Get a quote for Chevrolet Corvette Grand wheels
Vehicles With the Same Hub as the Chevrolet Corvette Grand (5x120, 66.9 mm Bore)
In our database, 121 other vehicle entries from 9 makes use exactly the same 5x120 bolt pattern and 66.9 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.
5x120 is used by 10.3% of the vehicle pages in our English fitment guide (670 of 6,503); 24.2% of those also use a 66.9 mm center bore.
Offset and Backspacing: Factory Wheel vs Options
Backspacing ≈ width/2 + ET/25.4 + 0.5 in. "Inward" means closer to the suspension; "outward" means closer to the fender lip.
| Setup | Size | ET | Backspacing | Inward vs OE | Outward vs OE |
|---|---|---|---|---|---|
| Factory (OE) | 20x10J | ET40 | 7.07 in (180 mm) | — | — |
| Flush | 20x10.5J | ET35 | 7.13 in (181 mm) | +1 mm | +11 mm |
| Maximum | 21x10.5J | ET30 | 6.93 in (176 mm) | −4 mm | +16 mm |
Hub-Centric Rings for a 66.9 mm Center Bore
A wheel with a center bore larger than 66.9 mm needs a hub-centric ring. The most common combinations:
| Wheel bore | Ring size |
|---|---|
| 67.1 mm | 67.1 → 66.9 mm |
| 70.1 mm | 70.1 → 66.9 mm |
| 70.5 mm | 70.5 → 66.9 mm |
| 71.6 mm | 71.6 → 66.9 mm |
| 73.1 mm | 73.1 → 66.9 mm |
ANKUSI forged wheels are bored to exactly 66.9 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 Chevrolet Corvette Grand?
The Chevrolet Corvette Grand uses a 5x120 bolt pattern on most variants we cover with a 66.9mm center bore. Other generations use 5x120.65 / 70.3mm (2010–2017). Always check the exact year and trim before ordering.
What is the Chevrolet Corvette Grand center bore?
The hub-centric center bore is 66.9 mm on the most common generation; see the table for variants. Aftermarket wheels should match this bore or use hub-centric rings so the hub, not the bolts, carries the load.
Do all Chevrolet Corvette Grand years share the same wheel fitment?
No. The bolt pattern or center bore changed between generations, so wheels are not interchangeable across all years. Use the year-by-year table on this page to pick the right specification.
Which forged wheels fit the Chevrolet Corvette Grand?
Any wheel drilled 5x120 with a 66.9mm 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.