Cadillac CT4-V Blackwing Wheels

Lightweight forged & flow formed wheels for your 2022+ Cadillac CT4-V Blackwing

Lightweight forged & flow formed APEX wheels for your 2022+ Cadillac CT4-V Blackwing

All

8/8 Designs

Forged Sprint line

Forged Touring line

Flow Formed Evolution line

Flow Formed Classic line

Finish: Race Silver

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$1,676.00

Overview

Cadillac CT4-V Blackwing Wheel Performance

CT4-V Blackwings are special cars, but most models came with relatively narrow wheels which really limited their capabilities on the street and track. If you want to extract even more performance from your car, a lightweight set of wider wheels and tires will make a world of difference. We created Forged wheels such as the Apex VS-5RS, SM-10RS, EC-7RS and Flow Formed wheels such as the EC-7 and SM-10 to increase performance. Find out what fitment is best for your application in our Cadillac CT4-V Blackwing Wheel & Tire Fitment Guide.

EC-7 Specifications

 
Front
Rear
SKU
EC7189...
EC7181...
Wheel Size
18x9.5" ET22
18x10.5" ET40
Offset
22mm
40mm
Face Profile
Profile 3
Profile 2
Bolt Pattern
5x120mm
5x120mm
Center Bore
72.56mm to 67.1mm
72.56mm to 67.1mm
Centering Ring
Included
Included
Lug Seat
60 Degree Conical
60 Degree Conical
Center Cap
Gloss Black
Gloss Black
OEM Cap
Compatible*
Compatible*
Load Rating
1,550 lbs
1,550 lbs
Weight
21.75 lbs
22.9 lbs
Tested By
VIA
VIA
Test Reference #
VIA-17-0644
Issuance Finalizing
Front Profile
Rear Profile
Product image
Product image
Reproductive Harm - www.p65warnings.ca.cov

EC-7 features

The Flow Form Advantage

Flow forming enables us to create high performance wheels without the price premium of forging. It improves the mechanical properties and grain structure of the barrel, increasing its strength and stiffness, which allows us to use less material and reduce weight. Thanks to our superior engineering, our flow formed wheels have a higher load rating than some competitors' forged wheels.

Big Brake Clearance

Big brakes often require bigger, heavier, more expensive wheels, which aren’t ideal in a performance environment. The EC-7 is one of our many wheels which solve this problem. Through comprehensive laser scanning and endless rounds of test-fitting, we’ve created 18” wheels to clear huge brakes that typically require 19” wheels from other manufacturers.

Maximizing Concavity

We use the deepest concave face profiles we can for every application after factoring in critical clearances such as brake calipers. The EC-7 utilizes 3 unique profiles to make this possible, with the deepest concave face delivering reduced weight and a stunningly aggressive appearance.

Weight Optimized

We conducted extensive Finite Element Analysis (FEA) to reinforce high-stress areas and to remove material where it didn’t improve strength. The result is a wheel that is exceptionally light without the strength compromises found on typical lightweight wheels.²

Built for Impact Sockets

Track wheels need track tools. Don’t settle for wheels that require undersized tuner lugs or thin walled sockets. All Apex wheels accommodate over-sized race lugs and impact sockets to make swapping wheels lightning fast.

32mm

Socket Diameter Clearance

Finishing Touches

The EC-7 is finished using a multi-stage liquid paint over a powder coated base coat. This coating process leaves lug holes, center bores and mounting pads untouched, which ensures proper fit and torque values.

JWL and Beyond

All Apex Flow Formed wheels meet or meaningfully exceed JWL load rating requirements. Some manufacturers don't meet the minimum requirements, yet still claim to be compliant. Always compare load ratings to ensure you aren’t sacrificing critical strength for a slightly lighter wheel.

Learn More

True VIA

The VIA is an independent wheel testing and auditing agency similar to TÜV. Many companies falsely claim their wheels have been certified, and even use the VIA stamp without permission. Our Flow Formed wheels have been certified, and we provide the registration numbers for every wheel. Protect yourself. Demand registration numbers from manufacturers.

Learn More

Additional features

Hub Centric

All EC-7 wheels are purpose built for select vehicle applications. Very few applications require centering rings.

Center Caps

All Apex wheels come with our gloss black cap included that is interchangeable with the OE cap. We also offer additional colors for select fitments.

Wheel Hardware

Apex wheels can be used with all OEM mounting hardware, proper aftermarket hardware and most wheel spacers. Wheel locks and stud conversion kits also work perfectly.

TPMS

All Apex wheels accept OEM and aftermarket Tire Pressure Monitoring Sensors and standard fit valve stems. If you don’t have sensors, then select from our metal stems available in multiple finishes.

Accessories

REAL DRIVERS NEED REAL PERFORMANCE.

Not all claims of performance are backed up by facts—and it's a big problem. Don't get sold fashion when you want function.

A Wheel You Can Depend On

Accidental Damage Replacement

Curb rash or pothole damage on the street? Make an oopsie at the track? We’ve all been there. Apex is proud to offer 50% off replacement wheels, no matter the damage.

See terms and conditions

Lifetime Warranty

All Apex wheels come with a lifetime structural warranty against defects in workmanship and materials, plus a 1 year finish warranty. Exchanges are fast, easy, and hassle-free.

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Footnotes

¹ All wheels compared with equivalent 18x10” ET25 5x120mm / 72.56mm fitment. Price displayed based on MSRP as of 5/16/2025.

Wheel Fitment. Launch Alerts. Real Info Only.