The configuration of the mounting holes on a vehicle’s wheel hub is a crucial specification. For the Alfa Romeo Giulia, this measurement dictates the compatibility of aftermarket wheels and the proper torque application during wheel installation. It is typically expressed as a combination of the number of bolt holes and the diameter of the circle they form (e.g., 5×110). This measurement ensures the wheel is centered correctly and securely fastened to the hub.
Adherence to the correct specification is essential for vehicle safety and performance. Using wheels with an incorrect configuration can lead to vibration, damage to the wheel studs, and potentially, wheel detachment. Historically, manufacturers have employed various configurations, and selecting the correct wheel requires careful attention to these specifications. The original equipment manufacturer’s specifications provide optimal wheel fitment and performance characteristics.
