2026 CT5-V Blackwing F1 Collector Series Wheels & Rims: Bolt Pattern, Offset & Sizes
Fitting CT5-V Blackwing F1 Collector Series wheels? This page gives the 2026 CT5-V Blackwing F1 Collector Series bolt pattern (5x120), centre bore, factory rim size and the offset range for aftermarket and forged CT5-V Blackwing F1 Collector Series rims: the same spec sheet ANKUSI uses when machining forged wheels for this car.
Quick answer: The 2026 CT5-V Blackwing F1 Collector Series uses a 5x120 bolt pattern with a 66.9 mm centre bore and M12x1.5 lug nuts. Factory wheels: F 19x10.0J ET32 / R 19x11.0J ET45. For aftermarket wheels, 19x10.5J ET25 front / 19x11.5J ET40 rear sits flush and 20x10.5J ET22 front / 20x12.0J ET35 rear is the most aggressive fit.
Forged wheels for the 2026 CT5-V Blackwing F1 Collector Series — drilled 5x120 with a 66.9 mm centre bore, built to the offset you choose. From $220 per wheel, made to order in 20–25 days.
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CT5-V Blackwing F1 Collector Series (2026): 5x120 bolt pattern, 66.9mm center bore. Factory wheels: F 19x10.0J ET32 / R 19x11.0J ET45.
Bolt Pattern5x120
Wheel Bolt/NutM12x1.5 Nut
Center Bore66.9mm
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
Wheel Size & Offset at a Glance
| Configuration | Wheel Size & Offset |
|---|---|
| Factory (OE) | F 19x10.0J ET32 / R 19x11.0J ET45 |
| Flush Fitment | F 19x10.5J ET25 / R 19x11.5J ET40 |
| Maximum Aggressive | F 20x10.5J ET22 / R 20x12.0J ET35 |
Forged Wheel Designs for the CT5-V Blackwing F1 Collector Series
Every design below is forged to order, so it can be machined to the CT5-V Blackwing F1 Collector Series's 5x120 bolt pattern and 66.9 mm center bore, with the width and offset calculated for your setup.
Cadillac OEM-Style Gloss Black Turbine Multi-Spoke Forged Wheels
Monoblock · Gloss Black
Cadillac OEM-Style Brushed Silver Double 5-Spoke Forged Wheels
Monoblock · Brushed Silver
Cadillac OEM-Style Black / Gold Split Forged Wheels
Monoblock · Black / Gold
Cadillac OEM-Style Matte Silver 10-Spoke Forged Wheels
Monoblock · Matte Silver
Cadillac OEM-Style Polished Slotted Disc Forged Wheels
Monoblock · Polished
Cadillac OEM-Style Polished Multi-Spoke Red Lip Floating Cap Forged Wheels
Monoblock · Polished
Cadillac OEM-Style Bright Silver 10 Y-Spoke Forged Wheels
Monoblock · Bright Silver
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
The CT5-V Blackwing F1 Collector Series's factory wheel spec reflects a deliberate balance between comfort, steering feel and durability that the engineering team tuned for. Forging lets ANKUSI match that same strength target while trimming rotational mass — the part of a wheel upgrade that actually changes how the car drives, not just how it looks.
The CT5-V Blackwing F1 Collector Series runs a 5x120 bolt pattern, 66.9mm center bore, and a F 19x10.0J ET32 / R 19x11.0J ET45 wheel from the factory. Our Flush Fitment reference is F 19x10.5J ET25 / R 19x11.5J ET40, which tucks the tire under the fender lip on a stock-height CT5-V Blackwing F1 Collector Series. Our Maximum Aggressive reference is F 20x10.5J ET22 / R 20x12.0J ET35 — beyond that offset, expect rubbing against the inner fender liner under compression without further trimming.
Cadillac CT5-V Blackwing F1 Collector Series OE Wheel Specs
The 2026 Cadillac CT5-V Blackwing F1 Collector Series (Sedan) uses a 5x120 bolt pattern with a 66.9mm center bore. Factory wheels are F 19x10.0J ET32 / R 19x11.0J ET45.
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 CT5-V Blackwing F1 Collector Series (2026) we drill the 5x120 pattern and cut the centre bore to 66.9mm 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 (flange allowance):
- OE (F): 19x10.0J ET32 → ~6.76″ backspacing
- OE (R): 19x11.0J ET45 → ~7.77″ backspacing
- Flush (F): 19x10.5J ET25 → ~6.73″ backspacing
- Flush (R): 19x11.5J ET40 → ~7.82″ backspacing
- Max (F): 20x10.5J ET22 → ~6.62″ backspacing
- Max (R): 20x12.0J ET35 → ~7.88″ backspacing
Want to check a different width or offset before you order? Use our Offset & Backspacing Calculator to solve the numbers yourself, or can’t find your exact Cadillac spec, or want a wheel built to a custom offset for your Cadillac CT5-V Blackwing F1 Collector Series? Contact ANKUSI with your bolt pattern and offset target and we’ll confirm the correct forged wheel spec for your build.
Vehicles With the Same Hub as the CT5-V Blackwing F1 Collector Series (5x120, 66.9 mm Bore)
In our database, 161 other vehicle entries from 10 makes use exactly the same 5x120 bolt pattern and 66.9 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.
5x120 is used by 10.3% of the vehicle pages in our English fitment guide (670 of 6,503); 24.2% of those also use a 66.9 mm center bore.
Hub-Centric Rings for a 66.9 mm Center Bore
A wheel with a center bore larger than 66.9 mm needs a hub-centric ring. The most common combinations:
| Wheel bore | Ring size |
|---|---|
| 67.1 mm | 67.1 → 66.9 mm |
| 70.1 mm | 70.1 → 66.9 mm |
| 70.5 mm | 70.5 → 66.9 mm |
| 71.6 mm | 71.6 → 66.9 mm |
| 73.1 mm | 73.1 → 66.9 mm |
ANKUSI forged wheels are bored to exactly 66.9 mm for this vehicle, so no ring is needed.
Frequently Asked Questions
What bolt pattern (PCD) does the CT5-V Blackwing F1 Collector Series use?
The 2026 CT5-V Blackwing F1 Collector Series uses a 5x120 bolt pattern.
How many lug bolts does the CT5-V Blackwing F1 Collector Series use?
The CT5-V Blackwing F1 Collector Series uses a 5-lug bolt pattern (5x120), so you need a 5-lug forged wheel to bolt straight on.
What is the center bore size on the CT5-V Blackwing F1 Collector Series?
The CT5-V Blackwing F1 Collector Series's center bore is 66.9mm. 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 CT5-V Blackwing F1 Collector Series?
Factory wheels on the CT5-V Blackwing F1 Collector Series are F 19x10.0J ET32 / R 19x11.0J ET45.
What is the biggest wheel size I can fit on my CT5-V Blackwing F1 Collector Series without rubbing?
The most aggressive fitment we recommend without fender work is F 20x10.5J ET22 / R 20x12.0J 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 CT5-V Blackwing F1 Collector Series?
For a flush look with minimal to no rubbing, we recommend F 19x10.5J ET25 / R 19x11.5J ET40 as a starting point on a stock or mildly lowered CT5-V Blackwing F1 Collector Series.
Do I need wheel spacers for my CT5-V Blackwing F1 Collector Series?
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 CT5-V Blackwing F1 Collector Series?
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 6.73" backspacing up front and 7.82" 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 CT5-V Blackwing F1 Collector Series?
Yes — the CT5-V Blackwing F1 Collector Series'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).
Compiled by the ANKUSI Wheels engineering team, an IATF 16949 and ISO 9001 certified forged wheel factory in Guangzhou.