Alfa Romeo 8C Wheel Lug Pattern, Offset ET & Center Bore Reference

The Alfa Romeo 8C features specific wheel lug patterns crucial for proper fitment and safety. The lug pattern, defined as lug count × PCD (pitch circle diameter in millimeters), ensures wheels mount securely on the hub. Typical Alfa Romeo 8C wheels utilize a 5×110 mm lug pattern, which is standard across its production years.\n\nWheel offset (ET) for the Alfa Romeo 8C varies depending on rim size and manufacturer but commonly falls within ET35 to ET45, balancing clearance and handling. The center bore diameter typically measures 73.1 mm, matching hub dimensions to ensure a perfect wheel-to-hub fit.\n\nRim sizes for the Alfa Romeo 8C often range from 18 to 20 inches in diameter, with widths adapted accordingly for performance and aesthetics. Proper rim size aligned with bolt pattern, offset, and center bore maintains vehicle stability, steering response, and tire wear.\n\nThis reference provides year-sorted Alfa Romeo 8C wheel lug patterns and fitment details to help owners and technicians select compatible wheels and avoid fitment issues.