Load carrier for motor vehicles, in particular in the form of a roof rack, consisting of at least two carrier bridges arranged offset at a distance from one another in the longitudinal direction of the vehicle, said carrier bridges in each case comprising a crossbar as well as fastening feet which are able to be mounted on both sides of the vehicle, wherein - angle brackets serving as lateral load stops are provided on the crossbars, said angle brackets being able to be pivoted to and fro between an active position and an inactive position and in their active position being able to be placed in the vertical position against a stop, - the angle brackets comprise two fastening limbs encompassing the crossbars, - the fastening limbs comprise recesses which interact with a pivot pin provided on the respective crossbar, forming a rotary joint, and - the angle brackets are able to be folded down in their inactive position onto the respective crossbar and then bear against said crossbar, characterized - in that a transverse pin arranged in the respective crossbar and able to be fastened therein is provided as a pivot pin for the fastening limbs, - in that the transverse pin protrudes over the front and rear faces of the respective crossbar, - in that the protruding portions of the transverse pin engage in the corresponding recesses of the fastening limbs of the angle brackets, forming a rotary joint, - in that the recesses of the fastening limbs are configured as sliding slots in the form of elongated holes which extend rectilinearly in the longitudinal direction of the angle brackets and together with the pivot pin form a rotary joint, - in that a stabilizing pin is arranged on the respective crossbar below the pivot pin, said stabilizing pin engaging in a second elongated hole which is formed in the respective fastening limb, extends aligned with the sliding slot and has at least the same length as said sliding slot, and - in that from the lower end of the second elongated hole extends a circular arc-shaped elongated hole of the same width, said circular arc-shaped elongated hole extending over a circular arc of at least 90° in the direction of the inactive position of the respective angle bracket. - angle brackets serving as lateral load stops are provided on the crossbars, said angle brackets being able to be pivoted to and fro between an active position and an inactive position and in their active position being able to be placed in the vertical position against a stop, - the angle brackets comprise two fastening limbs encompassing the crossbars, - the fastening limbs comprise recesses which interact with a pivot pin provided on the respective crossbar, forming a rotary joint, and - the angle brackets are able to be folded down in their inactive position onto the respective crossbar and then bear against said crossbar, - in that a transverse pin arranged in the respective crossbar and able to be fastened therein is provided as a pivot pin for the fastening limbs, - in that the transverse pin protrudes over the front and rear faces of the respective crossbar, - in that the protruding portions of the transverse pin engage in the corresponding recesses of the fastening limbs of the angle brackets, forming a rotary joint, - in that the recesses of the fastening limbs are configured as sliding slots in the form of elongated holes which extend rectilinearly in the longitudinal direction of the angle brackets and together with the pivot pin form a rotary joint, - in that a stabilizing pin is arranged on the respective crossbar below the pivot pin, said stabilizing pin engaging in a second elongated hole which is formed in the respective fastening limb, extends aligned with the sliding slot and has at least the same length as said sliding slot, and - in that from the lower end of the second elongated hole extends a circular arc-shaped elongated hole of the same width, said circular arc-shaped elongated hole extending over a circular arc of at least 90° in the direction of the inactive position of the respective angle bracket.