Buggy and buggy frame

The invention relates to a buggy, comprising a frame (40) which can be supported on the ground by means of at least three, in particular four wheels (42), and at least two receiving devices (20, 30), in particular child receiving devices, which can be connected to the frame (40) by means of adapters (50, 60), which are designed and optionally positionable on the frame (40) in such a way that the adapters (50, 60) can be connected to the frame (40) by means of adapters (50, 60). The transport means (20, 30) are arranged such that they do not allow at least one configuration in which the total center of gravity of the transport means and the receiving means (20, 30) is in a top view and thus the total center of gravity line does not lie in a projection plane (P) delimited by the wheels (42) or the standing surfaces thereof, with respect to the connection of the receiving means (20, 30), the orientation of the receiving means, and optionally the operation of the receiving means. And/or only allows the total cent