A combination of a center cap and a hub centering ring for wheel rims with a center bore , said combination comprising: a wheel center cap having a body portion with a front side and a rear side and a flexibly resilient part extending substantially orthogonal from the rear side of the body portion, each or at least part of the resilient part having a free end with a flange or stepped portion ; and a hub centering ring with a rear end , a front end , an interior surface and an outer surface , wherein 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 wherein a recessed groove is provided at the interior or outer surface at a distance from the front end , said groove being dimensioned and arranged for receipt of the flange or stepped portion of the resilient part of the center cap to thereby retain the center cap in concentric relationship with the centering ring , characterized in that the flexibly resilient part of the wheel center cap is formed by a plurality of flexibly resilient fingers extending substantially orthogonal from the rear side of the body portion, with each or at least part of the fingers having a free end with a flange or stepped portion , and in that the recessed groove of the hub centering ring 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 , and further characterized in that a wheel hub recess is provided at the rear end part of the interior surface of the centering ring , whereby the inner diameter of the centering ring is larger at the recessed rear end part than in the non-recessed middle part of the centering ring . a wheel center cap having a body portion with a front side and a rear side and a flexibly resilient part extending substantially orthogonal from the rear side of the body portion, each or at least part of the resilient part having a free end with a flange or stepped portion ; and a hub centering ring with a rear end , a front end , an interior surface and an outer surface , wherein 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 wherein a recessed groove is provided at the interior or outer surface at a distance from the front end , said groove being dimensioned and arranged for receipt of the flange or stepped portion of the resilient part of the center cap to thereby retain the center cap in concentric relationship with the centering ring , characterized in that the flexibly resilient part of the wheel center cap is formed by a plurality of flexibly resilient fingers extending substantially orthogonal from the rear side of the body portion, with each or at least part of the fingers having a free end with a flange or stepped portion , and in that the recessed groove of the hub centering ring 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 , and further characterized in that a wheel hub recess is provided at the rear end part of the interior surface of the centering ring , whereby the inner diameter of the centering ring is larger at the recessed rear end part than in the non-recessed middle part of the centering ring . <EOS>