A cradle or hold-down for a vehicle-mounted equipment carrier, such as a bicycle carrier, includes a resilient support member interconnected with a rigid shell, in combination with a flexible retainer strap that is secured to a retainer base associated with the rigid shell. The support member defines a passage within which a support arm of the carrier is received, and the shell includes aligned openings through which the support arm extends. The support member includes engagement structure, such as a trough, which is configured to receive and engage the equipment supported by the carrier, e.g. the frame of a bicycle. The retainer base is formed integrally with the shell, and extends laterally from the shell so as to be offset from the engagement area of the support member. The retainer strap is fixed to the retainer base, such as by an interlocking T-slot arrangement interposed between the retainer base and the retainer strap.