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2026 IS 350 Wheels & Rims: Bolt Pattern, Offset & Sizes
Fitting IS 350 wheels? This page gives the 2026 IS 350 bolt pattern (5x114.3), centre bore, factory rim size and the offset range for aftermarket and forged IS 350 rims: the same spec sheet ANKUSI uses when machining forged wheels for this car.
Quick answer: The 2026 IS 350 uses a 5x114.3 bolt pattern with a 60.1 mm centre bore and M12x1.5 lug nuts. Factory wheels: F 19x8.5J ET45 / R 19x9.5J ET50. For aftermarket wheels, 19x9.0J ET35 front / 19x10.0J ET40 rear sits flush and 20x9.5J ET30 front / 20x10.5J ET35 rear is the most aggressive fit.
Forged wheels for the 2026 IS 350 — drilled 5x114.3 with a 60.1 mm centre bore, built to the offset you choose. From $220 per wheel, made to order in 20–25 days.
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IS 350 (2026): 5x114.3 bolt pattern, 60.1mm center bore. Factory wheels: F 19x8.5J ET45 / R 19x9.5J ET50. Reference fitment ranges.
Bolt Pattern5x114.3
Wheel Bolt/NutM12x1.5 Nut
Center Bore60.1mm
Wheel Load Rating650–750 kg/wheel (Standard Passenger Car segment reference)
Year2026
Category5-Lug Sedan
✓ Data check: the bolt pattern and center bore on this page match an independent fitment reference. Last reviewed September 25, 2026. How we verify
Built to order by ANKUSI — IATF 16949 & ISO 9001 certified forged wheel manufacturer, TÜV/SFI/VIA compliant. See our factory & certifications →
Wheel Size & Offset at a Glance
| Configuration | Wheel Size & Offset |
|---|---|
| Factory (OE) | F 19x8.5J ET45 / R 19x9.5J ET50 |
| Flush Fitment | F 19x9.0J ET35 / R 19x10.0J ET40 |
| Maximum Aggressive | F 20x9.5J ET30 / R 20x10.5J ET35 |
Forged Wheel Designs for the IS 350
Every design below is forged to order, so it can be machined to the IS 350's 5x114.3 bolt pattern and 60.1 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
Most of the engineering value in a forged wheel over a cast one shows up in rotational mass, not outright strength — both can meet the same load rating, but the forged piece gets there lighter. On a sedan platform tuned for everyday balance, that weight saving is felt directly in steering response and ride quality.
The IS 350 runs a 5x114.3 bolt pattern, 60.1mm center bore, and a F 19x8.5J ET45 / R 19x9.5J ET50 wheel from the factory. Our Flush Fitment reference is F 19x9.0J ET35 / R 19x10.0J ET40, which tucks the tire under the fender lip on a stock-height IS 350. Our Maximum Aggressive reference is F 20x9.5J ET30 / R 20x10.5J ET35 — beyond that offset, expect rubbing against the inner fender liner under compression without further trimming.
Lexus IS 350 OE Wheel Specs
The 2026 Lexus IS 350 (Sedan) uses a 5x114.3 bolt pattern with a 60.1mm center bore. Factory wheels are F 19x8.5J ET45 / R 19x9.5J ET50.
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 IS 350 (2026) we drill the 5x114.3 pattern and cut the centre bore to 60.1mm 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.
Flush Fitment
For a flush look with minimal rubbing, F 19x9.0J ET35 / R 19x10.0J ET40 is the recommended starting point on a stock or mildly lowered Lexus IS 350.
Maximum Aggressive Fitment
F 20x9.5J ET30 / R 20x10.5J ET35 is a more aggressive reference setup. Beyond this, expect rubbing under compression without fender rolling or camber correction.
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) | 19x8.5J | ET45 | 6.52 in (166 mm) | — | — |
| Flush | 19x9J | ET35 | 6.38 in (162 mm) | −4 mm | +16 mm |
| Maximum | 20x9.5J | ET30 | 6.43 in (163 mm) | −2 mm | +28 mm |
Vehicles With the Same Hub as the IS 350 (5x114.3, 60.1 mm Bore)
In our database, 217 other vehicle entries from 19 makes use exactly the same 5x114.3 bolt pattern and 60.1 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); 16.8% of those also use a 60.1 mm center bore.
Hub-Centric Rings for a 60.1 mm Center Bore
A wheel with a center bore larger than 60.1 mm needs a hub-centric ring. The most common combinations:
| Wheel bore | Ring size |
|---|---|
| 63.4 mm | 63.4 → 60.1 mm |
| 64.1 mm | 64.1 → 60.1 mm |
| 65.1 mm | 65.1 → 60.1 mm |
| 66.1 mm | 66.1 → 60.1 mm |
| 73.1 mm | 73.1 → 60.1 mm |
ANKUSI forged wheels are bored to exactly 60.1 mm for this vehicle, so no ring is needed.
Frequently Asked Questions
What bolt pattern (PCD) does the IS 350 use?
The 2026 IS 350 uses a 5x114.3 bolt pattern.
How many lug bolts does the IS 350 use?
The IS 350 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 IS 350?
The IS 350's center bore is 60.1mm. 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 IS 350?
Factory wheels on the IS 350 are F 19x8.5J ET45 / R 19x9.5J ET50.
What is the biggest wheel size I can fit on my IS 350 without rubbing?
The most aggressive fitment we recommend without fender work is F 20x9.5J ET30 / R 20x10.5J ET35. 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 IS 350?
For a flush look with minimal to no rubbing, we recommend F 19x9.0J ET35 / R 19x10.0J ET40 as a starting point on a stock or mildly lowered IS 350.
Do I need wheel spacers for my IS 350?
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 IS 350?
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" backspacing up front and 7.07" in the rear.
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 IS 350?
Yes — the IS 350's factory and our recommended flush/max fitments already use staggered sizing (different width front and rear), and ANKUSI can forge matching staggered sets to your target offsets.
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: 19x8.5 wheels · 19 inch wheels.
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 were cross-checked against at least two independent sources before publication. Last reviewed 2026-09-25. Spotted an error? Email info@ankusi.com and we will verify and correct it.