BMW F20 F21 Black Alloy Wheel Rim 18" 7,5J ET:45 M Double Spoke 461 7846784

Visual condition of the part

The product shows signs of use visible in the photos.

BMW F20 F21 Black Alloy Wheel Rim 18" 7,5J ET:45 M Double Spoke 461 are original M-series alloy rims, designed specifically for compact BMW models. The black finish gives the body a distinctly sporty character, while the precisely selected geometric parameters ensure stable handling and predictable vehicle behavior. This is a proposal for drivers who expect an aesthetic appearance combined with solid driving performance.

Specifications and technical data

• SKU: 7846784-4
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7846784
• Substitutable numbers: 7846784, 36117846784
• 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 fitment for BMW F20 / F21

The rims have been developed for the BMW 1 Series F20/F21 platform, ensuring the correct proportions between rim width, diameter, and mounting parameters. The properly selected offset promotes stability at higher speeds and improves the car's response to steering inputs. The design, based on BMW's original specifications, allows for maintaining factory handling characteristics without the need for spacers or suspension modifications.

Construction, material, and performance characteristics

The rims are made of lightweight aluminum alloy, which reduces unsprung mass compared to steel wheels and promotes more precise handling. The aluminum construction provides good rigidity while maintaining a reasonable weight, which is important for both acceleration dynamics and braking efficiency. The black finish of the rims emphasizes the body lines and blends well with both light and dark body colors, creating a cohesive, sporty look.

The rim size is selected to allow the installation of popular tire sizes used in the BMW 1 Series, which facilitates configuration for both daily use and more dynamic driving. The size of the rim also allows for compatibility with typical braking systems used in these models, without clearance issues with the calipers.

Mounting parameters and geometry

The rims have a bolt pattern matched to the BMW standard, which allows for mounting on hubs without additional adapters. The number of holes and their pitch circle diameter are consistent with the factory requirements for this platform, which translates into trouble-free installation and proper load distribution. The applied offset has been selected so that the wheel fits within the wheel arch while maintaining an appropriate margin relative to suspension and body components.

Such configured rim geometry promotes even distribution of forces acting on the hub and bearings, which is important for the durability of suspension components. At the same time, the correct wheel alignment relative to the body is maintained, which affects driving stability and predictable vehicle behavior in corners.

Condition, origin, and practical application

The rims come from the BMW range and are part of the Rims category, meaning they were designed in accordance with the vehicle manufacturer's requirements. As a used item, the product represents a reasonable compromise between cost and maintaining the vehicle's original specifications. This is a good solution both when replacing a damaged rim and when looking to unify a set of wheels on the car.

Thanks to the preservation of factory design assumptions, the rims will perform well in daily use, including city driving, high-speed routes, and occasional more dynamic driving. The aluminum construction also facilitates potential maintenance and cosmetic procedures, such as cleaning or refinishing the paint coating.

How to consciously buy used BMW alloy wheels

When choosing used rims, it is worth paying attention to the compatibility of mounting parameters with a specific car model, the condition of the working surfaces, and any signs of previous repairs. It may also be helpful to compare data with vehicle documentation or manufacturer catalogs. For drivers who want to better understand the process of selecting and potentially refurbishing rims, a practical guide has been prepared – more information can be found in the article Used rims like new: a guide to buying and refurbishing alloy wheels.

If you want to learn more about the use of original, used components in cars of this brand, it is worth checking out the material describing the impact of such solutions on the durability and precision of BMW handling – check the article BMW – sports performance and precision on original used parts.

If you are planning a comprehensive repair or upgrade of the running gear in your BMW and need other components from the same group, such as additional sets of rims, summer or winter wheel sets, check the available parts in the BMW Rims category.