Abstract: A decorative wheel trim for an automobile wheel rim in which the wheel trim has a castellated decorative ring member (9) with resiliently deflectable castellation members (10A) adapted to engage under resilient deflection of the castellation members (10A) with the radially inner surface (11) of the hump (4) of the wheel rim (1) to retain the decorative ring member (9) in the area of the wheel rim bounded by the transversely outer flange (2) of the wheel rim (1) and the transversely outer corner (12) of the well (5) of the wheel rim (1), said castellation members 10(A) being interrupted by substantial non-deflecting members 26(B) having detent means for engagement with spring clips (36) as supplementary fastening means for retaining the trim to the wheel rim (1).