Alfa Romeo OEM-Style Matte Silver 5-Spoke Forged Wheels
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1976 Saab 99 Wheels & Rims: Bolt Pattern, Offset & Sizes
Fitting Saab 99 wheels? This page gives the 1976 Saab 99 bolt pattern (4x114.3), centre bore, factory rim size and the offset range for aftermarket and forged Saab 99 rims: the same spec sheet ANKUSI uses when machining forged wheels for this car.
Quick answer: The 1976 Saab 99 uses a 4x114.3 bolt pattern with a 71.5 mm centre bore and M12x1.5 lug bolts. For aftermarket wheels, 15x6J ET30 sits flush.
Forged wheels for the 1976 Saab 99 — drilled 4x114.3 with a 71.5 mm centre bore, built to the offset you choose. From $220 per wheel, made to order in 20–25 days.
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Saab 99 (1976) wheel fitment guide: 4x114.3 bolt pattern, 71.5mm center bore, factory 15x5J ET40 wheels. Flush and aggressive forged wheel fitment specs from ANKUSI.
Bolt Pattern4x114.3
Wheel Bolt/NutM12x1.5 Bolt
Center Bore71.5mm
Wheel Load Rating650–750 kg/wheel (Standard Passenger Car segment reference)
Year1976
CategorySedan/Hatch
Data check: the bolt pattern and center bore on this page have not yet been confirmed by a second independent source. Measure your hub or ask us before ordering. How we verify
Wheel Size & Offset at a Glance
| Configuration | Wheel Size & Offset |
|---|---|
| Flush Fitment | 15x6J at ET30 offset |
Forged Wheel Designs for the Saab 99
Every design below is forged to order, so it can be machined to the Saab 99's 4x114.3 bolt pattern and 71.5 mm center bore, with the width and offset calculated for your setup.
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Black / Machined 4-Spoke Forged Wheels
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APEX-Style Bright Silver 8 Twin-Spoke Mesh Forged Wheels
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Silver Round-Hole Steelie-Style Forged Wheels
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OZ Racing-Style Gloss White 15-Spoke Forged Wheels
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Bronze Gold Cross-Spoke Forged Wheels
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Rays-Style Gunmetal Mesh Polished Deep Lip Forged Wheels
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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
Hot hatches and performance compacts are built around quick direction changes, so rotational mass at the wheel has an outsized effect on how the car actually feels to drive. Forging trims that mass while holding the same strength margin as the factory wheel, which is exactly the trade-off this kind of platform rewards.
The Saab 99 ships from the factory on a 4x114.3 bolt pattern with a 71.5mm center bore and a 15x5J ET40 wheel. Our flush reference for the Saab 99 is 15x6J ET30.; our maximum aggressive reference is 16x6.5J ET25. — beyond that, expect clearance issues against the fender liner without further modification.
Saab 99 OE Wheel Specs
The Saab 99 ships from the factory on 4x114.3 bolt pattern wheels with a 71.5mm center bore. The stock wheel size is 15x5J ET40, offering a balanced ride that suits most owners without any rubbing or clearance concerns.
Why the factory spec works for most owners:
- Balances ride comfort with steering response and highway efficiency.
- Wide tire and wheel availability at the factory diameter keeps replacement costs low.
- Lower unsprung weight than larger aftermarket wheels helps ride quality and acceleration.
- Guaranteed clearance against brake calipers and suspension components.
ANKUSI builds these wheels — we are the forging factory, not a reseller. For the Saab 99 (1976) we drill the 4x114.3 pattern and cut the centre bore to 71.5mm 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.
Offset & Backspacing Reference
Backspacing is calculated as: wheel width (in) / 2 + offset (mm) / 25.4 + 0.5.
- OE 15x5J ET40: backspacing ≈ 4.57"
- Flush 15x6J ET30: backspacing ≈ 4.68"
- Max 16x6.5J ET25: backspacing ≈ 4.73"
Use our offset & backspacing calculator to fine-tune your fitment, or contact ANKUSI for a custom forged wheel quote for your Saab 99.
Vehicles With the Same Hub as the Saab 99 (4x114.3, 71.5 mm Bore)
In our database, 2 other Saab entries use exactly the same 4x114.3 bolt pattern and 71.5 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.
4x114.3 is used by 0.6% of the vehicle pages in our English fitment guide (41 of 6,503); 7.3% of those also use a 71.5 mm center bore.
Hub-Centric Rings for a 71.5 mm Center Bore
A wheel with a center bore larger than 71.5 mm needs a hub-centric ring. The most common combinations:
| Wheel bore | Ring size |
|---|---|
| 71.6 mm | 71.6 → 71.5 mm |
| 72.6 mm | 72.6 → 71.5 mm |
| 73.1 mm | 73.1 → 71.5 mm |
| 74.1 mm | 74.1 → 71.5 mm |
ANKUSI forged wheels are bored to exactly 71.5 mm for this vehicle, so no ring is needed.
Frequently Asked Questions
What bolt pattern (PCD) does the Saab 99 use?
The 1976 Saab 99 uses a 4x114.3 bolt pattern.
How many lug bolts does the Saab 99 use?
The Saab 99 uses a 4-lug bolt pattern (4x114.3), so you need a 4-lug forged wheel to bolt straight on.
What is the center bore size on the Saab 99?
The Saab 99's center bore is 71.5mm. 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 does a flush wheel fitment look like on the Saab 99?
For a flush look with minimal to no rubbing, we recommend 15x6J at ET30 offset as a starting point on a stock or mildly lowered Saab 99.
Do I need wheel spacers for my Saab 99?
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.
How do I calculate wheel backspacing for my Saab 99?
Backspacing (in inches) = wheel width (in) ÷ 2 + offset (mm) ÷ 25.4 + 0.5 (flange allowance). For example, the flush spec above works out to roughly 4.68" of backspacing.
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 Saab 99?
The Saab 99 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, tirewheelguide.com.
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.
Bolt pattern and center bore on this page come from published fitment references and are still awaiting a second independent check. Last reviewed 2026-09-18. Spotted an error? Email info@ankusi.com and we will verify and correct it.