BMW F30 F31 F32 F33 Wheel Alloy Rim 18" M Star Spoke 400 8J ET:34 7845880

Visual condition of the part

The product shows signs of use visible in the photos. BMW F30 F31 F32 F33 Wheel Alloy Rim 18" M Star Spoke 400 8J ET:34 is an original M-line alloy rim, designed specifically for the BMW F3x series. The characteristic M Star Spoke 400 design emphasizes the dynamic look of the car, while precisely selected technical parameters ensure stable handling and predictable suspension behavior.

Specifications and technical data

• SKU: 7845880-12
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7845880
• Substitutable numbers: 36117845880, 7845880
• Color: Grey
• Rim diameter: 18"
• Rim width: 8
• Offset (ET): 34
• Hole diameter: 120
• Number of holes: 5
• Rim material: Aluminium
• Category: Rims

Rim construction and purpose

The M Star Spoke alloy rim was developed as factory equipment for BMW F30, F31, F32, and F33 models, ensuring proper hub fitment and compatibility with the chassis of these generations. The use of an aluminum alloy translates into a favorable strength-to-weight ratio, which supports the performance of the suspension and steering system. The grey color of the rim creates a cohesive, understated look with most BMW body paints, effectively highlighting the shape of the M Star Spoke pattern. The rim construction is optimized for daily use, with an emphasis on rim rigidity and resistance to typical road loads.

Geometric parameters and vehicle handling

The 18" rim diameter and appropriately selected rim width allow for the installation of tires with a profile typical for factory BMW F3x configurations. This setup promotes precise handling while maintaining a reasonable compromise between comfort and lateral tire stiffness. The rim offset has been selected to maintain proper suspension geometry and adequate wheel arch filling, without interfering with brake or suspension components. The bolt pattern and number of mounting holes comply with BMW factory requirements, allowing for trouble-free installation on original hubs and bolts.

Material and manufacturing technology

The aluminum rim provides favorable weight parameters compared to steel wheels, which can positively influence suspension performance and steering response. At the same time, the construction is designed to maintain adequate rigidity, which is essential at higher speeds and during dynamic driving. The grey surface finish is visually neutral and effectively masks typical operational dirt, such as brake dust. As a result, the rim maintains an aesthetic appearance between standard vehicle wash intervals.

Practical application and wheel configurations

The M Star Spoke 400 rim is suitable both as a replacement for a single damaged wheel and for completing a full set of summer or winter wheels. It can be used on front and rear axles depending on the vehicle configuration and the chosen tire strategy. When choosing this rim, it is worth paying attention to tire matching in terms of load and speed ratings consistent with the vehicle manufacturer's recommendations. Maintaining consistency in wheel dimensions on the axle is important for the proper operation of safety systems, such as ABS or traction control.

Used rim selection and technical support

As an item in the Wheels category, the M Star Spoke 400 rim is intended for re-installation after prior verification of its technical condition. When selecting a used rim, it is worth paying attention to the compatibility of parameters such as diameter, width, offset, bolt pattern, and the number of holes, as well as the material, to ensure full compatibility with a given BMW model. If you want to deepen your knowledge about selecting original used alloy wheels for BMW, ET markings, and bolt patterns, the following article will be helpful: Do scratched rims ruin the look of your car? Used original alloy wheels for Audi and BMW as a quick way to a makeover. You will find practical tips there regarding the assessment of rim condition and the rules for replacing a single wheel or a whole set.

Expanding BMW wheel configurations

If you are planning a comprehensive repair or upgrade of the chassis area in your BMW and need other items from the same group, such as additional rims, alternative alloy wheel designs, or rims of a different diameter, check out the available parts in the BMW Wheels category. For drivers preparing their car for the winter season, practical checklists regarding used consumables may also be useful – you can find them in the guide: Winter essentials: which used car parts are worth checking and replacing before the frost?. This will allow you to better plan the inspection of wheels and other components before intensive use in more difficult conditions.