A patient transport system comprising a patient support apparatus and a wheeled accessory. The wheeled accessory comprises an accessory base and at least two legs radially extending outwardly from the accessory base. The legs are spaced apart from one another to define an accommodation space between two legs. The patient support apparatus comprises a patient support base, and wheels coupled to the patient support base. The patient support apparatus further comprises an accessory coupler capable of releasably securing the wheeled accessory to the patient support apparatus, the accessory coupler movable relative to the patient support base into first and second positions. The accessory base and the patient support apparatus are configured such that at least one of the wheels is at least partially nested within the accommodation space when the wheeled accessory is secured to the accessory coupler and the accessory coupler is in the first position.