The invention relates to a friction ring (1) for a synchronization unit of a gear changing transmission. The friction ring (1) comprises a conical friction ring body (4) having an inner friction surface (401) and an outer installation surface (402) which each bound the friction ring body (4) in a radial direction extending perpendicular to an axial friction ring axis (6). The friction ring body (4) is interrupted in a circumferential direction (U) extending around the friction ring axis (6) by a separation point (5) in such a way that a first separation surface (7) and a second separation surface (8) are formed at the separation point (5). In order to ensure that the friction ring (1) takes a controlled axial position relative to a synchronizer ring during the synchronization, the first separation surface (7) and the second separation surface (8) contact each other in a predefinable area in such a way that the friction ring body (4) is shaped in the form of a closed contour in the circumferential direction (U) with a smallest circumference (13).