There is provided a combination of a center cap and a hub centering ring for wheel rims with a center bore. The combination comprises a wheel center cap having a body portion with a front side and a rear side and a plurality of flexibly resilient fingers extending substantially orthogonal from the rear side of the body portion, where each or at least part of the fingers having a free end with a flange or stepped portion. The combination further comprises a hub centering ring with a rear end, a front end, an interior surface and an outer surface. A radially outwardly turned retainer or retainer flange is provided at the rear end for retaining the ring in axial spaced relationship relative to the center bore of a wheel rim, and a recessed groove is provided at the interior or outer surface at a distance from the front end. The recessed groove is dimensioned and arranged for receipt of the flange or stepped portion of the fingers of the center cap to thereby retain the center cap in concentric relationship with the centering ring. In one embodiment, the flange or stepped portion of the fingers of the wheel center cap is radially outwardly turned, and the recessed groove is provided at the interior surface of the hub centering ring. In another embodiment, the flange or stepped portion of the fingers of the wheel center cap is radially inwardly turned, and the recessed groove is provided at the outer surface of the hub centering ring.