BMW G20 G21 Orbitgrey Wheel Alloy Rim 18" 8,5J ET:40 Double Spoke 790M 8089891

Visual condition of the part

The product shows signs of use visible in the photos.

BMW G20 G21 Orbitgrey Wheel Alloy Rim 18" 8,5J ET:40 Double Spoke 790M is an original, stylish M-series rim, designed for precise handling and a cohesive look with the BMW body line. The distinctive Double Spoke 790M pattern emphasizes the car's sporty character, while the aluminum construction provides an optimal balance between durability and weight. This is a solution for drivers who expect solid OEM quality and consistent aesthetics with the factory M package.

Specifications and technical data

• SKU: 8089891-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8089891
• Substitutable numbers: 8089891, 36118089891
• Rim diameter: 18"
• Rim width: 8.5
• Offset (ET): 40
• Hole diameter: 112
• Number of holes: 5
• Rim material: Aluminium
• Category: Rims

Intended use and rim characteristics

The presented rim has been developed for the BMW 3 Series G20 and G21 generations, where both handling precision and a cohesive, dynamic look of the entire wheel set are essential. The Double Spoke design provides a modern, sporty look that harmonizes well with the body line and M styling packages.

The aluminum construction of the rim helps reduce unsprung mass, which translates into a more direct steering response and more stable vehicle behavior at higher speeds. At the same time, the appropriate stiffness of the rim is maintained, which is crucial for dynamic driving and during intensive braking.

Design parameters and vehicle handling

The rim has been designed to ensure proper wheel fitment in the wheel arch, which is important for suspension geometry, tire performance, and the overall aesthetics of the vehicle. Properly selected proportions of width, diameter, and offset support stability during load changes and allow for the installation of tires with a sporty profile, typical for BMW models with the M package.

The bolt pattern and number of mounting holes are matched to factory BMW hubs, which facilitates installation and allows for maintaining factory wheel mounting parameters. As a result, the rim works correctly with the braking system and safety systems, such as ABS or traction control.

Material and manufacturing technology

The rim is made of aluminum, which provides a favorable strength-to-weight ratio and resistance to typical operational loads. Aluminum rims of this type are popular choices for premium cars because they improve suspension response to road irregularities and can positively influence ride comfort compared to heavier steel solutions.

The material structure and casting method are adapted to BMW's manufacturer requirements, which allows for maintaining adequate rim stiffness while keeping the weight reasonable. Thanks to this, the rim withstands loads resulting from daily use as well as dynamic highway driving.

Condition, application, and benefits of choosing a used rim

The rim comes from the used OEM parts segment, which means it is an original BMW component, not a replacement. For many users, this is a beneficial solution – it allows for maintaining the factory look of the car, avoiding fitment issues, and reducing costs compared to purchasing a new rim. It is a practical choice when replacing a single rim after mechanical damage or when completing a set of seasonal wheels.

If you want to learn more about the specifics of buying second-hand rims, the process of refreshing them, and the possibilities of refurbishment, it is worth checking out the guide: Used rims like new: a guide to buying and refurbishing aluminum rims. You will find practical tips there on how to consciously assess the condition of rims and plan their further use.

Additionally, if you are interested in a broader context of using aftermarket parts and want to verify popular opinions about them, the article Used car parts: Myths and facts you need to know will be helpful, as it organizes the most important information regarding the quality and safety of such solutions.

Expanding your BMW wheel set

If you are planning a comprehensive repair or upgrade of the wheel area in your BMW and need other elements from the same group, such as additional rims, winter sets, or sets with a similar style, check out the available parts in the BMW Rims category.