A brake for a steering caster which is actuatable with small shifting forces and small shifting travel and creates less noise during shifting. The steering caster includes a head portion; a support portion including at least one arm; and a foot lever for actuating a directional fixation device and for actuating a brake device for at least one wheel including a rim, wherein the rim is covered with a thread protector. The brake device includes at least one rim brake locking element that is actuatable through a foot lever and arranged laterally between the at least one arm and the thread protector connected with the at least one arm, wherein at least one actuation contour is arranged at an inside of the at least one arm and/or at an outside of the thread protector within a movement range of the at least one rim brake locking element.