ECS 74.1mm-to-72.6mm hub-centric ring set. Plastic adapter rings that fill the gap between a wheel's larger center bore and a smaller vehicle hub, keeping the wheel centered on the hub rather than relying on the lug bolts alone - reduces vibration at speed with wheels designed for a different hub diameter.

Fitment: BMW E46/E60/E90/F01/F10/F30 and other chassis needing a 74.1mm wheel bore adapted to a 72.6mm hub (confirm exact wheel/hub spec at checkout).