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2006 Infiniti M45 Wheels & Rims: Bolt Pattern, Offset & Sizes
Fitting Infiniti M45 wheels? This page gives the 2006 Infiniti M45 bolt pattern (5x114.3), centre bore, factory rim size and the offset range for aftermarket and forged Infiniti M45 rims: the same spec sheet ANKUSI uses when machining forged wheels for this car.
Quick answer: The 2006 Infiniti M45 uses a 5x114.3 bolt pattern with a 66.1 mm centre bore and M12x1.25 lug nuts. Factory wheels: 18x8J at ET47. For aftermarket wheels, 19x9J ET35 sits flush and 20x9.5J ET30 is the most aggressive fit.
Forged wheels for the 2006 Infiniti M45 — drilled 5x114.3 with a 66.1 mm centre bore, built to the offset you choose. From $220 per wheel, made to order in 20–25 days.
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Infiniti M45 (2006): 5x114.3 bolt pattern, 66.1mm center bore. Factory wheels: 18x8J. Reference fitment ranges.
Bolt Pattern5x114.3
Wheel Bolt/NutM12x1.25 Nut
Center Bore66.1mm
Wheel Load Rating650–750 kg/wheel (Standard Passenger Car segment reference)
Year2006
CategorySedan
✓ 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) | 18x8J at ET47 |
| Flush Fitment | 19x9J at ET35 offset |
| Maximum Aggressive | 20x9.5J at ET30 offset |
Forged Wheel Designs for the Infiniti M45
Every design below is forged to order, so it can be machined to the Infiniti M45's 5x114.3 bolt pattern and 66.1 mm center bore, with the width and offset calculated for your setup.
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Rays-Style Matte Bronze 10-Spoke Forged Wheels
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Wheelforce-Style Matte Silver 10-Spoke Star 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
A sedan's wheel spec is a balance point the factory tuned between ride comfort, steering feel, and everyday durability. Forging lets us hold that same structural margin while cutting rotational mass, which is where most of the real-world benefit — quicker steering response, marginally better ride — actually comes from.
The Infiniti M45 runs a 5x114.3 bolt pattern, 66.1mm center bore, and a 18x8J at ET47, front and rear, wheel from the factory. Our Flush Fitment reference is 19x9J ET35, which tucks the tire under the fender lip on a stock-height Infiniti M45. Our Maximum Aggressive reference is 20x9.5J ET30 — beyond that offset, expect rubbing against the inner fender liner under compression without further trimming.
Infiniti M45 OE Wheel Specs
The 2006 Infiniti M45 (Sedan) uses a 5x114.3 bolt pattern with a 66.1mm center bore. Factory wheels are 18x8J at ET47.
Why the factory spec works for most owners:
- Balances ride comfort with everyday fuel efficiency
- A widely used size in this segment, so tire and wheel availability stays strong
- Keeps unsprung weight low for stable, predictable handling
- Maintains clearance for the factory brake calipers and suspension components
ANKUSI builds these wheels — we are the forging factory, not a reseller. For the Infiniti M45 (2006) we drill the 5x114.3 pattern and cut the centre bore to 66.1mm 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.
Real-World Fitment Notes
Chassis: Lowering springs. Tires: 245/45 R18.
Offset & Backspacing Reference
Backspacing is calculated as wheel width (in) ÷ 2 + offset (mm) ÷ 25.4 + 0.5 (flange allowance):
- OE: 18x8J ET47 → ~6.35″ backspacing
- Flush: 19x9J ET35 → ~6.38″ backspacing
- Max: 20x9.5J ET30 → ~6.43″ backspacing
A Note on Clearance
Final clearance depends on the exact tire model, suspension height, brake package, alignment and vehicle tolerances. A physical test fit is recommended before production.
Want to check a different width or offset before you order? Use our Offset & Backspacing Calculator to solve the numbers yourself, or looking for your exact Infiniti spec, or want a wheel built to a custom offset for your Infiniti M45? Contact ANKUSI with your bolt pattern and offset target and we will confirm the correct forged wheel spec for your build.
Infiniti M45: Specs by Model Year
| Year | Bolt pattern | Center bore | Factory wheel |
|---|---|---|---|
| 2003 | 5x114.3 | 66.1 mm | 18x7.5J |
| 2006 | 5x114.3 | 66.1 mm | 18x8J |
Bolt pattern and center bore stay the same across all 2 model years in our database (2003–2006).
Vehicles With the Same Hub as the Infiniti M45 (5x114.3, 66.1 mm Bore)
In our database, 223 other vehicle entries from 9 makes use exactly the same 5x114.3 bolt pattern and 66.1 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.
5x114.3 is used by 20.0% of the vehicle pages in our English fitment guide (1,300 of 6,503); 17.3% of those also use a 66.1 mm center bore.
Hub-Centric Rings for a 66.1 mm Center Bore
A wheel with a center bore larger than 66.1 mm needs a hub-centric ring. The most common combinations:
| Wheel bore | Ring size |
|---|---|
| 66.6 mm | 66.6 → 66.1 mm |
| 67.1 mm | 67.1 → 66.1 mm |
| 70.1 mm | 70.1 → 66.1 mm |
| 70.5 mm | 70.5 → 66.1 mm |
| 73.1 mm | 73.1 → 66.1 mm |
ANKUSI forged wheels are bored to exactly 66.1 mm for this vehicle, so no ring is needed.
Frequently Asked Questions
What bolt pattern (PCD) does the Infiniti M45 use?
The 2006 Infiniti M45 uses a 5x114.3 bolt pattern.
How many lug bolts does the Infiniti M45 use?
The Infiniti M45 uses a 5-lug bolt pattern (5x114.3), so you need a 5-lug forged wheel to bolt straight on.
What is the center bore size on the Infiniti M45?
The Infiniti M45's center bore is 66.1mm. 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 Infiniti M45?
Factory wheels on the Infiniti M45 are 18x8J at ET47.
What is the biggest wheel size I can fit on my Infiniti M45 without rubbing?
The most aggressive fitment we recommend without fender work is 20x9.5J at ET30 offset. Going beyond this typically causes rubbing under compression unless you roll the fenders or add camber correction.
What does a flush wheel fitment look like on the Infiniti M45?
For a flush look with minimal to no rubbing, we recommend 19x9J at ET35 offset as a starting point on a stock or mildly lowered Infiniti M45.
Do I need wheel spacers for my Infiniti M45?
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 Infiniti M45?
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 6.38" 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 Infiniti M45?
The Infiniti M45 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: 18x8 wheels · 18 inch wheels.
Compiled by the ANKUSI Wheels engineering team, an IATF 16949 and ISO 9001 certified forged wheel factory in Guangzhou.