A road wheel includes an outboard surface defining an orifice and a cavity. The road wheel additionally includes an ornament having a bottom surface and a key extending from the bottom surface to interface with the cavity. The ornament also includes a post extending from the bottom surface to interface with the orifice in the outboard surface. The key may include a semi-circular profile. The cavity and key may have corresponding triangular shapes. The post may have an internally threaded portion. The cavity may have a slot oriented along a wheel radius sized to receive the key, and the orifice open in the slot.