A longitudinal support and a transverse support for a chassis frame of a rail vehicle, wherein the longitudinal support includes a first box-shaped connection portion having a sectionally straight first circumferential edge for connection to the transverse support, where the transverse support has a second box-shaped connection portion having a sectionally straight second circumferential edge for connection to the longitudinal support within a transverse direction of the chassis frame, respectively on the end side, and where the first and second circumferential edges are each configured as four first and second connection edges to achieve a reduction of the weight of the longitudinal support and of the transverse support, and to lower the twisting rigidity of the chassis frame, where the connection edges are separated from each other by first and second recesses.