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2006 Saab 9-3 Convertible 20 Years Edition Wheels & Rims: Bolt Pattern, Offset & Sizes
Fitting Saab 9-3 Convertible 20 Years Edition wheels? This page gives the 2006 Saab 9-3 Convertible 20 Years Edition bolt pattern (5x110), centre bore, factory rim size and the offset range for aftermarket and forged Saab 9-3 Convertible 20 Years Edition rims: the same spec sheet ANKUSI uses when machining forged wheels for this car.
Quick answer: The 2006 Saab 9-3 Convertible 20 Years Edition uses a 5x110 bolt pattern with a 65.1 mm centre bore and M12x1.5 lug bolts. Factory wheels: 17x7.5J ET41. For aftermarket wheels, 18x8J ET35 sits flush.
Forged wheels for the 2006 Saab 9-3 Convertible 20 Years Edition — drilled 5x110 with a 65.1 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 9-3 Convertible 20 Years Edition (2006): 5x110 bolt pattern, 65.1mm center bore, OE 17x7.5J ET41. Forged wheel fitment specs from ANKUSI.
Bolt Pattern5x110
Wheel Bolt/NutM12x1.5 Bolt
Center Bore65.1mm
Wheel Load Rating700–850 kg/wheel (Performance / Sports Car segment reference)
Year2006
Category5-Lug Performance / Tuner
✓ Data check: the bolt pattern and center bore on this page match an independent fitment reference. Last reviewed September 18, 2026. How we verify
Wheel Size & Offset at a Glance
| Configuration | Wheel Size & Offset |
|---|---|
| Factory (OE) | 17x7.5J ET41 |
| Flush Fitment | 18x8J at ET35 offset |
Forged Wheel Designs for the Saab 9-3 Convertible 20 Years Edition
Every design below is forged to order, so it can be machined to the Saab 9-3 Convertible 20 Years Edition's 5x110 bolt pattern and 65.1 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
Convertibles lose some of the structural rigidity a fixed roof provides, which means the suspension and wheels end up doing more of the work to keep the chassis composed. A forged wheel keeps unsprung mass down without sacrificing the strength margin the factory built in — useful on a platform that's already managing extra flex.
The Saab 9-3 Convertible 20 Years Edition ships from the factory on a 5x110 bolt pattern with a 65.1mm center bore and a 17x7.5J ET41 wheel. Our flush reference for the Saab 9-3 Convertible 20 Years Edition is 18x8J ET35.; our maximum aggressive reference is 19x8.5J ET30. — beyond that, expect clearance issues against the fender liner without further modification.
Saab 9-3 Convertible 20 Years Edition OE Wheel Specs
The Saab 9-3 Convertible 20 Years Edition ships from the factory on 5x110 bolt pattern wheels with a 65.1mm center bore. The stock wheel size is 17x7.5J ET41, 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 9-3 Convertible 20 Years Edition (2006) we drill the 5x110 pattern and cut the centre bore to 65.1mm 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.
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) | 17x7.5J | ET41 | 5.86 in (149 mm) | — | — |
| Flush | 18x8J | ET35 | 5.88 in (149 mm) | 0 mm | +12 mm |
| Maximum | 19x8.5J | ET30 | 5.93 in (151 mm) | +2 mm | +24 mm |
Vehicles With the Same Hub as the Saab 9-3 Convertible 20 Years Edition (5x110, 65.1 mm Bore)
In our database, 139 other vehicle entries from 19 makes use exactly the same 5x110 bolt pattern and 65.1 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.
5x110 is used by 2.2% of the vehicle pages in our English fitment guide (145 of 6,503); 96.6% of those also use a 65.1 mm center bore.
Hub-Centric Rings for a 65.1 mm Center Bore
A wheel with a center bore larger than 65.1 mm needs a hub-centric ring. The most common combinations:
| Wheel bore | Ring size |
|---|---|
| 66.1 mm | 66.1 → 65.1 mm |
| 66.6 mm | 66.6 → 65.1 mm |
| 67.1 mm | 67.1 → 65.1 mm |
| 70.1 mm | 70.1 → 65.1 mm |
| 73.1 mm | 73.1 → 65.1 mm |
ANKUSI forged wheels are bored to exactly 65.1 mm for this vehicle, so no ring is needed.
Frequently Asked Questions
What bolt pattern (PCD) does the Saab 9-3 Convertible 20 Years Edition use?
The 2006 Saab 9-3 Convertible 20 Years Edition uses a 5x110 bolt pattern.
How many lug bolts does the Saab 9-3 Convertible 20 Years Edition use?
The Saab 9-3 Convertible 20 Years Edition uses a 5-lug bolt pattern (5x110), so you need a 5-lug forged wheel to bolt straight on.
What is the center bore size on the Saab 9-3 Convertible 20 Years Edition?
The Saab 9-3 Convertible 20 Years Edition's center bore is 65.1mm. 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 Saab 9-3 Convertible 20 Years Edition?
Factory wheels on the Saab 9-3 Convertible 20 Years Edition are 17x7.5J ET41.
What does a flush wheel fitment look like on the Saab 9-3 Convertible 20 Years Edition?
For a flush look with minimal to no rubbing, we recommend 18x8J at ET35 offset as a starting point on a stock or mildly lowered Saab 9-3 Convertible 20 Years Edition.
Do I need wheel spacers for my Saab 9-3 Convertible 20 Years Edition?
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 9-3 Convertible 20 Years Edition?
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 5.88" 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 9-3 Convertible 20 Years Edition?
The Saab 9-3 Convertible 20 Years Edition 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: 17x7.5 wheels · 17 inch wheels.
Compiled by the ANKUSI Wheels engineering team, an IATF 16949 and ISO 9001 certified forged wheel factory in Guangzhou.