Finding the perfect wheels for a car often turns into a long and tedious process. Standard manufacturers’ catalogs offer a limited selection that may not satisfy the needs of a premium car owner or enthusiast looking for a complete uniqueness of their vehicle. It is in these situations that help comes. customizationIt allows you to implement any engineering and design ideas.
Modern metalworking technologies allow you to create products of any complexity, from exact copies of rare vintage models to futuristic structures that have no analogues in serial production. By ordering individual work, you get full control over the parameters: chatter, departure, diameter and width of the shelf. This opens up opportunities for the installation of wheels that are technically impossible when buying ready-made factory analogues.
In this article, we will discuss in detail what separates individual production from factory, what are the methods of creating wheels and what to pay attention to the result that meets expectations. You will learn about the intricacies of material selection, design stages and the real cost of such projects.
Production technologies: forging against casting
The fundamental difference between standard and custom drives lies in the method of obtaining them. If a mass market is focused on low-pressure casting, the individual segment often offers more advanced solutions. Forging It is considered the gold standard for those who are looking for maximum strength at minimum weight. During forging, the metal is subjected to enormous pressure, which compacts its structure and makes the product resistant to impact loads.
On the other hand, casting It allows you to create incredibly complex geometric shapes that are impossible to obtain by forging. When ordering individually, this method is often used, if the design of spokes involves a lot of intricate-parts. However, it is worth remembering that cast discs, even custom-made ones, are usually heavier than forged analogues of the same strength.
⚠️ Warning: Don’t try to save on fabrication technology by choosing cheap casting for race tracks. Forged discs withstand multiple overloads, while cast ones can crack when hitting the curbs hard at high speed.
There is also a hybrid technology combining forging and casting elements, which is often used to create complex composite structures. In this case, the center of the disc can be forged, and the rim - prefabricated or cast. The choice of technology directly affects the final cost and deadlines for the execution of the order.
Stages of creating an individual project
The birth process of your unique disc begins long before the first hammer strike or metal pour. The first and most important step is 3D modeling. Engineers create a digital copy of the future product, calculating the load on each spoke and checking compatibility with the braking system of your car. At this stage, you can visually assess how the design will look in different angles.
After the approval of the sketch, the alloy is selected. The most commonly used aluminum alloys series 6061 or 7075, with excellent mechanical properties. For exclusive projects, it can be used magnesiumIt is even lighter than aluminum, but requires special care due to its high oxidability. Titanium disks are rare due to the complexity of processing, but are the pinnacle of engineering thought.
The final stage includes machining on CNC machines and finishing painting. It is here that the workpiece turns into a finished product with perfect geometry. The quality of the surface treatment directly affects the balance of the wheel in the future.
☑️ Stages of ordering discs
Geometric parameters and compatibility
One of the main advantages of ordering discs is the ability to ignore the limitations of regular sizes. You can change your departure (ET) to widen the track, which will improve the stability of the car in cornering. The diameter of the central hole is also changed (DIA) and the number of fastening holes, which allows the installation of discs from other brands of vehicles by means of transitional pads integrated into the structure.
But when we push the boundaries of what is possible, we must not forget about physics. Excessive increase in the width of the disc can lead to friction against the arches when the suspension is fully loaded or working. Therefore, before the start of production, it is necessary to fitting or a detailed calculation of the suspension moves. Errors in calculations can lead to the fact that the wheels simply do not stand on the car or will touch the elements of the brake system.
| Parameter | Description | Influence on the car |
|---|---|---|
| Width (J) | Distance between rim edges | Affects the tire profile and stability |
| Departure (ET) | Distance from anchorage plane to centre | Determines the position of the wheel in the arch |
| PCD | Diameter of the mounting hole circumference | Critical for hub installation |
| DIA | Diameter of the central hole | Must be in the same position as the squash or be larger |
For the correct selection of parameters, it is often necessary to dismantle the wheels and measure with a rod directly on the car. This is especially true for older cars or vehicles with modified suspension, where the standard data may not correspond to reality.
What are composite discs?
Composite discs are assembled from several parts: the center and one or two cast rims. They are held together by titanium bolts in a circle. The main advantage is the ability to replace the damaged rim without replacing the entire disk, as well as the ability to assemble a disk of any width from standard components.
Design solutions and finishing
The visual component of individual ordering comes to the fore. You are not limited to catalogue flowers and can order a unique color scheme. Powder paint allows you to apply any shade on the catalog RALCreate a “liquid metal” effect, chameleon or use carbon in decorative elements.
In addition to color, the texture of the surface plays an important role. It can be a glossy polish, matte coating, satin or even texture "old" with patina. Often used diamond duct front, which gives the disc a characteristic shine and overflow in the sun. This effect is achieved by removing a thin layer of metal on a special machine.
When designing, it is important to consider not only aesthetics, but also practicality. Too complex shapes of spokes can make it difficult to wash wheels, and deep shelves can collect dirt and reagents. Balance between beauty and functionality is the designer’s task, but the final decision is always up to the customer.
When ordering discs of complex design, immediately ask the master how difficult it will be to wash the inner cavities of spokes from brake dust. Sometimes it is worth sacrificing detail for a simpler form that is easier to maintain.
Cost and deadlines for order execution
Manufacturing custom-made discs is an expensive pleasure, and prices here are formed differently than in retail sales. The cost includes the work of design engineers, the time of operation of expensive equipment (CNC machines, hydropresses) and handwork of finishing masters. The price of a kit can range from a few thousand dollars to tens of thousands, depending on the materials and complexity.
The timing of production is also significantly different from the purchase of finished goods. From the moment of approval of the sketch to the receipt of the finished wheels can take from 3 to 8 weeks. This time is needed for the purchase of raw materials, the creation of programs for machine tools, direct manufacturing and quality control. Urgent orders are possible, but they are usually much more expensive.
⚠️ Attention: The low price of custom-made discs often indicates the use of secondary aluminum or simplified casting technology in sand molds, which reduces the strength of the product. Require certificates for the alloy used.
Logistics costs should also be considered if the production is located in another country or region. Wheel transportation requires special packaging to avoid damage during transportation, which is also included in the final estimate.
The main factor of the price is not so much the material as the complexity of the CNC processing processes and the uniqueness of the engineering solutions incorporated in the project.
Frequently Asked Questions (FAQ)
Can I make a disc if the original model is no longer available?
This is one of the most common reasons for contacting the masters. From a preserved sample or even a photo, you can take the dimensions and create a 3D model to restore the lost design. The technology allows you to recreate even rare vintage discs.
Do I need to re-register the wheels in the traffic police after installing non-standard drives?
In most cases, if the diameter of the disc corresponds to the dimensions allowed by the car manufacturer (as specified in the CTC), registration is not required. However, if you change the dimension to an unconventional one (for example, if you put R20 instead of the allowed R17-R18), this is considered a change in the design of the vehicle and requires official registration.
Are custom-made forged discs subject to warranty repair?
The warranty applies to hidden defects in production (cracks, violation of geometry), but not to damage resulting from operation (impacts, chips, corrosion from reagents). The terms of the guarantee are always specified in the contract individually.
How much weight do forged discs weigh compared to cast ones?
Forged disc lighter than cast analogue of the same strength on average 20-30%. For example, if the cast disc R19 weighs 12 kg, then the forged disc will weigh about 8-9 kg. The decrease in unsprung weight has a positive effect on the dynamics of acceleration and suspension.
Can I make magnesium discs on my own in garage conditions?
Absolutely not. Magnesium is a flammable material that requires special conditions for melting and processing in an inert medium. Attempting to cast magnesium at home can lead to a fire that cannot be extinguished with water. Such products are manufactured only in specialized factories.