The designation “6-120” found in wheel specifications refers to a specific bolt pattern. The first number, “6,” indicates the number of bolts used to secure the wheel to the vehicle’s hub. The second number, “120,” represents the diameter, in millimeters, of the circle formed by the bolt holes. Thus, a wheel described as “6-120” utilizes six bolts positioned on a circular path with a 120mm diameter.
Correctly matching this measurement is critical for ensuring safe and proper wheel installation. Using wheels with an incompatible bolt pattern can prevent secure attachment, leading to wheel detachment, vehicle damage, and potential accidents. The standardization of these measurements allows for interchangeability within certain vehicle makes and models and facilitates the selection of aftermarket wheel options. This specification has evolved with automotive engineering, ensuring consistent and reliable wheel mounting systems.
