Custom forged wheels are considered the highest standard in modern wheel manufacturing.
Compared to cast wheels, forged wheels offer superior strength, reduced weight and full design flexibility.
This article explains the forging process, materials used and performance advantages of custom forged wheels,
commonly used in premium, performance and bespoke automotive projects.
What are custom forged wheels?
Custom forged wheels are wheels manufactured from a solid billet of aluminium using a high-pressure forging process and then fully machined to exact specifications. Unlike mass-produced wheels, custom forged wheels are designed individually for a specific vehicle, driving style and aesthetic vision.
Because each wheel is made to order, parameters such as diameter, width, offset (ET), bolt pattern, center bore and concavity can be precisely adjusted. This level of customization is impossible to achieve with standard cast wheels.
Custom forged wheels are commonly used in premium, performance and bespoke automotive projects where strength, weight optimization and design freedom are critical.
Forged wheel manufacturing process
The forged wheel manufacturing process starts with a solid aluminium billet, which is heated and pressed under extremely high pressure. This forging process aligns the internal grain structure of the metal, significantly increasing strength compared to cast aluminium.
After forging, the wheel blank is precisely machined using CNC technology. During this stage, the final shape of the spokes, hub, barrel and mounting surfaces is created. CNC machining allows for complex designs, deep concave profiles and sharp details while maintaining structural integrity.
The final steps include heat treatment, surface finishing and quality control to ensure dimensional accuracy and durability.
Materials used in forged wheels (6061-T6 aluminium)
Most high-quality forged wheels are manufactured from 6061-T6 aluminium alloy. This material is widely used in aerospace and motorsport applications due to its excellent strength-to-weight ratio.
The T6 heat treatment process improves mechanical properties such as tensile strength, fatigue resistance and impact resistance. As a result, forged wheels made from 6061-T6 aluminium can be lighter than cast wheels while offering significantly higher structural strength.
This material choice is a key reason why forged wheels perform better under high loads and extreme driving conditions.
Forged wheels vs cast wheels – performance comparison
When comparing forged wheels vs cast wheels, the differences become clear in terms of performance and durability.
Forged wheels are lighter, which reduces unsprung mass and improves vehicle handling, acceleration and braking response. The denser metal structure also makes forged wheels more resistant to cracking and deformation under stress.
Cast wheels, while more affordable, require thicker material to achieve acceptable strength. This results in higher weight and lower performance potential. For everyday driving, cast wheels may be sufficient, but for performance-oriented vehicles, forged wheels offer a clear advantage.
Why custom forged wheels are used in high-performance cars
High-performance cars place extreme demands on every component, including wheels. Custom forged wheels are chosen because they combine maximum strength with minimal weight, directly improving driving dynamics.
In addition, the ability to tailor wheel specifications allows engineers and builders to optimize fitment, brake clearance and aerodynamics. This is why custom forged wheels are commonly used in sports cars, track-focused builds and luxury performance vehicles.
For brands like RIMREX, forged technology also enables premium finishes such as mirror polish, PVD coatings, chrome and candy colors without compromising structural integrity.
International terminology
Custom forged wheels are also commonly referred to as:
forged wheels (EN),
geschmiedete Felgen (DE),
kovaná kola (CZ),
gesmede velgen (NL),
عجلات مطروقة (AR – DE market),
kaltiniai ratlankiai (LT),
kalti diski (LV).
All of these terms describe high-strength aluminium wheels manufactured using forging technology, offering superior performance compared to cast wheels.