BMW F20 F21 F22 F23 Black Wheel Alloy Rim 18

BMW F20 F21 F22 F23 Black Wheel Alloy Rim 18 is an original BMW alloy rim designed for demanding users who value precise handling and the stylistic consistency of their vehicle. This used Black rim allows you to maintain the factory character of the vehicle while providing a solid base for building a complete, aesthetic wheel set. By maintaining parameters consistent with the F20, F21, and F22 model lines, the product ensures proper wheel fitment and stable handling.

Specifications and technical data

• SKU: 7845870-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7845870
• Substitutable numbers: 36117845870, 7845870
• Color: Black
• Rim diameter: 18"
• Rim width: 7.5
• Offset (ET): 45
• Hole diameter: 120
• Number of holes: 5
• Rim material: Aluminium
• Category: Rims

Purpose and compatibility with BMW F20, F21, F22

The rim has been designed for BMW F-series models, such as the F20, F21, and F22, which translates into a proper fit for the suspension geometry and drivetrain. The rim construction complies with BMW factory standards, ensuring that the appropriate handling characteristics are maintained and the steering system operates in a predictable manner. This is a particularly beneficial solution when replacing a single rim after mechanical damage or when completing a set of wheels with parameters consistent with the original.

Construction characteristics and material

The rim belongs to the Wheels category and is made of a lightweight aluminum alloy, which helps reduce unsprung mass compared to steel solutions. The aluminum construction improves suspension response to road irregularities and can positively influence ride comfort and handling precision. The material used also allows for potential refurbishment processes, such as straightening or refinishing the paint coating, in accordance with good service practices.

Performance parameters and driving characteristics

The 18" diameter and 7.5 width rim has been selected to work with typical tire sizes used in premium compact BMW models. The properly selected ET offset, as well as the bolt pattern and number of mounting holes, ensure proper wheel seating in the wheel arch, maintenance of clearances relative to suspension components, and correct operation of the braking system. This set of parameters promotes stability at higher speeds, predictable behavior in corners, and even tire wear.

Appearance and Black color scheme

The Black finish gives the rim a subdued, modern character that complements both light and dark body paints. The dark rim visually emphasizes the body line and can accentuate the sporty profile of the F20, F21, and F22 models. This color is also practical for daily use – minor dirt and brake dust are less visible than on light-colored rims, which makes it easier to maintain the aesthetic appearance of the car.

Why choose a used BMW alloy rim

A used BMW alloy rim is a reasonable compromise between cost and maintaining factory driving parameters. By choosing an original rim from dismantling, you gain:

• stylistic consistency with the other wheels on the car,
• parameters consistent with the manufacturer's design assumptions,
• the possibility of economical repair after damage to a single rim,
• a base for potential refurbishment and refreshing of the paint coating.

To better plan your purchase and potential rim renewal, it is worth familiarizing yourself with the practical tips contained in the article Used rims like new: a guide to buying and refurbishing alloy rims, which describes key aspects of selecting and refurbishing alloy rims.

Expanding your BMW wheel set and additional options

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

In a situation where you are looking for economical solutions for older models or want to better utilize the potential of parts from dismantling, the guide No parts at the dealership? How to deal with repairing older models using parts from dismantling, which describes a practical approach to repairs using original components from the secondary market, may also be helpful.