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1993 Buick Skylark Wheels & Rims: Bolt Pattern, Offset & Sizes
Fitting Buick Skylark wheels? This page gives the 1993 Buick Skylark bolt pattern (5x100), centre bore, factory rim size and the offset range for aftermarket and forged Buick Skylark rims: the same spec sheet ANKUSI uses when machining forged wheels for this car.
Quick answer: The 1993 Buick Skylark uses a 5x100 bolt pattern with a 57.1 mm centre bore and M12x1.5 lug nuts. Factory wheels: 15x5.5J, front and rear.
Forged wheels for the 1993 Buick Skylark — drilled 5x100 with a 57.1 mm centre bore, built to the offset you choose. From $220 per wheel, made to order in 20–25 days.
Get a quote for this car
Buick Skylark (1993): 5x100 bolt pattern, 57.1mm center bore. Factory wheels: 15x5.5J F/R. Flush and max fitment confirmed on request.
Bolt Pattern5x100
Wheel Bolt/NutM12x1.5 Nut
Center Bore57.1mm
Wheel Load Rating650–750 kg/wheel (Standard Passenger Car segment reference)
Caliper TypeFactory caliper package (OEM)
Year1993
CategoryPerformance Sedan
✓ Data check: the bolt pattern and center bore on this page match an independent fitment reference. Last reviewed September 19, 2026. How we verify
Forged Wheel Designs for the Buick Skylark
Every design below is forged to order, so it can be machined to the Buick Skylark's 5x100 bolt pattern and 57.1 mm center bore, with the width and offset calculated for your setup.
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How to Read Wheel Offset & Measurements
Use these two references before ordering: the left diagram shows where each spec (PCD, center bore, offset, width and diameter) is measured on the wheel; the right diagram shows how positive, zero and negative offset shift the wheel face relative to the hub centerline.
ANKUSI Engineering Expert Advice
A big saloon lives or dies on ride quality, and the wheel is the first thing that ruins it. Going wider and lower without watching load rating and offset trades away exactly the composure you paid for. Forging lets you add diameter and width while keeping rotating mass close to the factory figure.
We publish the factory specification for the Buick Skylark below. We have not yet been able to verify aftermarket flush or maximum-aggressive offsets for this exact variant against a source we trust, so we are not listing any - an invented offset is worse than no offset when a wheel has to clear a caliper.
Buick Skylark OE Wheel Specs
The 1993 Buick Skylark (Performance Sedan) uses a 5x100 bolt pattern with a 57.1mm center bore. Factory wheels are 15x5.5J F/R.
Why the factory spec works for most owners:
- Keeps unsprung weight low to preserve the factory handling balance
- Matches the wider, performance-oriented tire sizing typical of this platform
- Maintains clearance for the factory brake package and suspension geometry
- Balances grip with ride comfort for daily and spirited driving
ANKUSI builds these wheels — we are the forging factory, not a reseller. For the Buick Skylark (1993) we drill the 5x100 pattern and cut the centre bore to 57.1mm on our own CNC line, so the wheel hub-centres on the car with no spacer rings, in whatever diameter, width and offset you specify.
Converting these ET figures to backspacing? Use the wheel offset and backspacing calculator.
The figures on this page are part of our open wheel fitment dataset — 10,093 vehicles, free to download, CC BY 4.0.
Aftermarket Fitment: Confirmed on Request
Published aftermarket fitment for this exact variant is still thin, so we have not committed to a flush or maximum-aggressive figure. Our engineering team is still collecting verified data for this variant. In the meantime the factory specification above is accurate and is the safe reference point for ordering.
Need a wheel for this car now? Contact ANKUSI with your target diameter, width and offset and our engineers will confirm the correct forged spec against your brake package before anything is cut. You can also use our Offset & Backspacing Calculator to work through the numbers yourself.
Buick Skylark: Specs by Model Year
| Year | Bolt pattern | Center bore | Factory wheel |
|---|---|---|---|
| 1992 | 5x100 | 57.1 mm | 15x5.5J |
| 1993 | 5x100 | 57.1 mm | 15x5.5J |
| 1994 | 5x100 | 57.1 mm | 15x5.5J |
| 1995 | 5x100 | 57.1 mm | 15x5.5J |
| 1996 | 5x100 | 57.1 mm | 15x5.5J |
| 1997 | 5x100 | 57.1 mm | 15x5.5J |
| 1998 | 5x100 | 57.1 mm | 15x5.5J |
Bolt pattern and center bore stay the same across all 7 model years in our database (1992–1998).
Vehicles With the Same Hub as the Buick Skylark (5x100, 57.1 mm Bore)
In our database, 85 other vehicle entries from 10 makes use exactly the same 5x100 bolt pattern and 57.1 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.
5x100 is used by 1.9% of the vehicle pages in our English fitment guide (124 of 6,503); 69.4% of those also use a 57.1 mm center bore.
Hub-Centric Rings for a 57.1 mm Center Bore
A wheel with a center bore larger than 57.1 mm needs a hub-centric ring. The most common combinations:
| Wheel bore | Ring size |
|---|---|
| 60.1 mm | 60.1 → 57.1 mm |
| 63.4 mm | 63.4 → 57.1 mm |
| 64.1 mm | 64.1 → 57.1 mm |
| 65.1 mm | 65.1 → 57.1 mm |
| 73.1 mm | 73.1 → 57.1 mm |
ANKUSI forged wheels are bored to exactly 57.1 mm for this vehicle, so no ring is needed.
Frequently Asked Questions
What bolt pattern (PCD) does the Buick Skylark use?
The 1993 Buick Skylark uses a 5x100 bolt pattern.
How many lug bolts does the Buick Skylark use?
The Buick Skylark uses a 5-lug bolt pattern (5x100), so you need a 5-lug forged wheel to bolt straight on.
What is the center bore size on the Buick Skylark?
The Buick Skylark's center bore is 57.1mm. If an aftermarket wheel has a larger center bore than this, hub-centric rings are recommended so the wheel centers on the hub itself rather than relying on the lug bolts alone.
What size are the factory (stock) wheels on the Buick Skylark?
Factory wheels on the Buick Skylark are 15x5.5J F/R.
Do I need wheel spacers for my Buick Skylark?
No. ANKUSI forges each wheel to your exact target offset, including the flush or max specs above, so you get the correct fitment without stacking spacers. Spacers are typically only used to push out an existing OE-offset wheel without replacing it, which isn't necessary when you're ordering a custom-offset forged wheel.
What's the difference between wheel offset and backspacing?
Offset is the distance in millimeters from the wheel's true centerline to its mounting face (positive offset pulls the wheel in, negative pushes it out). Backspacing is the distance in inches from the mounting face to the back edge of the wheel barrel. They describe the same fitment from two different reference points, which is why ANKUSI lists both above — some shops and tuning guides quote offset, others quote backspacing.
Can I run staggered wheels (different sizes front and rear) on my Buick Skylark?
The Buick Skylark runs the same wheel size front and rear from the factory, so staggered fitment is not required. ANKUSI can still forge a staggered set (wider rear) on request if you want a more aggressive stance.
Sources and Last Update
Data checked against: avtoreference.com.
This record is part of the open ANKUSI Wheel Fitment Dataset (DOI 10.5281/zenodo.23241521, CC BY 4.0).
Other cars on the same factory size: 15x5.5 wheels · 15 inch wheels.
Compiled by the ANKUSI Wheels engineering team, an IATF 16949 and ISO 9001 certified forged wheel factory in Guangzhou.