Abstract: A device for mounting a spoke (1) on a wheel rim or hub, includes a spoke (1) having a rod extending along an axis (X-X?) with one end (11) provided with an external thread (110). The threaded end is screwed inside the internal thread of a nut (2) mounted in an opening provided inside the rim or hub. At least part of the threaded end (11) of the spoke (1) screwed in the nut (2), is curved relative to the axis (X-X?), so as to increase the braking torque by direct friction of the nut (2) relative to the rod.