BMW F20 F21 F22 F23 Ferricgrey Wheel Alloy Rim 18" M Double Spoke 436 ET:52 8J

Visual condition of the part 

The product shows signs of use visible in the photos. 

BMW F20 F21 F22 F23 Ferricgrey Wheel Alloy Rim 18" M Double Spoke 436 ET:52 8J is an original alloy rim from the BMW Wheels category, designed for demanding users who value precise handling and the stylistic consistency of their vehicle. The grey finish of the rim provides a subtle, modern look that complements both light and dark body colors.

Specifications and technical data

• SKU: 7845871-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7845871
• Substitutable numbers: 36117845871, 7845871
• Color: Grey
• Rim diameter: 18"
• Rim width: 8
• Offset (ET): 52
• Hole diameter: 120
• Number of holes: 5
• Rim material: Aluminium
• Category: Rims

Rim construction and technical parameters

The rim is made of aluminum, which helps reduce unsprung mass compared to classic steel solutions. This translates into better suspension response, more precise handling, and a noticeably improved driving comfort. The rim dimensions are optimized for BMW F-series models, ensuring proper tire support and stability at higher speeds.

The bolt pattern and diameter of the mounting holes have been selected in accordance with BMW standards, allowing for trouble-free installation on the hubs of dedicated models. A properly selected offset guarantees correct wheel seating in the wheel arch, maintenance of factory suspension geometry, and no interference with braking system components.

Compatibility with BMW F20, F21, F22, F23 models

The rim geometry is tailored to the specifics of the BMW F platform, allowing the rim to work seamlessly with factory suspension and steering settings. The correct mounting parameters allow for maintaining:

• driving stability during dynamic maneuvers,
• proper operation of safety systems (ABS, DSC, traction control),
• even load on bearings and suspension components.

The grey color of the rim fits well with the character of BMW F20, F21, F22, and F23 models, emphasizing their dynamic yet elegant body lines. This is a particularly attractive solution for drivers who want to maintain the original look of the car, avoiding a mismatched mix of patterns and shades.

Performance characteristics and advantages of the alloy rim

The aluminum construction of the rim promotes effective heat dissipation from the braking system, which is important during intensive vehicle use, e.g., on highways. The optimized rim width allows for proper tire seating, which influences:

• better traction during acceleration and braking,
• more predictable vehicle behavior in corners,
• even tread wear.

The grey surface finish is practical for everyday use – operational dirt is less visible than on silver or high-gloss black rims. At the same time, the rim maintains an aesthetic, consistent look with other BMW styling elements.

Condition, fitment, and mounting aspects

The rim comes from the Wheels category and is intended for installation as a replacement for the factory component in BMW F-series cars. Thanks to the preservation of original mounting parameters, there is no need to use spacers or non-factory mounting solutions, which reduces the risk of balancing issues and excessive hub load.

Before installation, a standard service procedure is recommended: checking radial and axial runout, verifying the condition of the surface contacting the hub, and applying the appropriate bolt tightening torques. This approach allows you to fully utilize the advantages of the aluminum construction and maintain stable, predictable vehicle handling.

Wheel configuration expansion and additional information

The 18" grey alloy rim can be used both as part of a complete set of summer or winter wheels, and as a single rim replacing a damaged element in an existing set. This is a practical solution for drivers who want to maintain a uniform rim pattern throughout the car without the need to purchase a full new set.

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

When choosing a used alloy rim, it is worth knowing the basic principles of assessing its condition, refurbishment, and fitment to a specific car model – you will find practical tips in the article Used rims like new: a guide to buying and refurbishing alloy rims, which will help you consciously choose the right rim for your BMW.