BMW M550i Wheel Lug Pattern, Offset & Center Bore Reference

The BMW M550i features precise wheel lug patterns essential for ensuring correct fitment and safety. Each model year comes with specific specifications, including lug count and pitch circle diameter (PCD), offset (ET), center bore diameter, and recommended rim sizes.\n\nTypically, the BMW M550i uses a 5×112 mm lug pattern, a common specification among many BMW models. The wheel offset (ET) ranges generally between 25 and 35 mm depending on the wheel design, influencing both aesthetics and handling dynamics. The center bore is usually 66.5 mm to perfectly match the wheel hub and prevent vibrations.\n\nProper selection of rim size is crucial for maintaining vehicle performance and comfort. The BMW M550i supports rim diameters commonly ranging from 18 to 20 inches, with widths varying to accommodate different tire profiles. Consulting the year-sorted reference table will help you find exact bolt pattern and offset data for your specific M550i model year.\n\nEnsuring compliance with the correct PCD, offset, and center bore values prevents issues such as wheel vibration, poor handling, or brake clearance problems. Always refer to precise fitment tables when selecting aftermarket wheels or replacements.