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Alloy Wheels Guide
Information about alloy wheels
Choosing alloy wheels is more than just matching a design to your car. Technical parameters, manufacturing technology, and certifications and homologations that confirm quality and safety are equally important.
On this page, you will find the most important areas of knowledge related to alloy wheels. Go to a selected section to learn how to read wheel markings, understand their parameters, and see the differences between various manufacturing methods.
What should you check before buying wheels?
Before choosing a specific model, it is worth paying attention to several key aspects: whether the wheel has the correct fitment parameters, whether it has been manufactured using a technology that meets your expectations, and whether its quality has been confirmed by testing, certifications, and homologations.
This makes it easier to choose wheels that are not only visually appealing but also safe, durable, and properly matched to your vehicle.
Go to a selected topic
Below you will find the three most important areas of knowledge about alloy wheels. Each section leads to a dedicated subpage with a detailed explanation of the topic.
Alloy wheel parameters
Learn what parameters such as ET, PCD, CB, width, diameter, J, H2, and Max Load mean and check how to properly match a wheel to your car.
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Certifications and homologations
Find out what TÜV Austria, JWL, VIA, KBA, IATF 16949, and EN ISO/IEC 17025 mean and why they are important for the quality and safety of wheels.
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Wheel manufacturing methods
Learn the differences between gravity casting, low-pressure casting, flow forming, and forging and see how the technology affects weight, strength, and price.
Go further →Why is it worth knowing this before buying?
Understanding the basics of alloy wheels helps avoid random choices. It allows you to better assess whether a given wheel is suitable not only visually but also technically, in terms of quality and real-world usability.
This is especially important for heavier SUVs, electric vehicles, larger wheel diameters, and cars with higher power and torque.
Choose your wheels with confidence
Before deciding on a specific model, check the key technical and quality information. This will help you choose alloy wheels that look great, fit properly, and perform safely in everyday use.