The hubcap for vehicle wheels comprises a disk (1), a ring (2) to secure the hubcap to said rim of the vehicle wheel and a plurality of securing modules (3) for securing the ring (2) to said disk (1), each of said securing modules (3) comprising at least a first securing element (5) which is coupled to said ring (2); characterized in that each securing module (3) also comprises a positioner (8), such that the ring (2) is retained between the first securing element (5) and the positioner (8) in its position of use, said first securing element (5) and said positioner (8) defining a lodging for said ring (2) before placing it in its position of use.It enables simpler placement of the ring, which can be carried out by applying pressure solely in the axial direction.