CO(1−0) position-velocity diagram of the ring in J2345−0449 along the morphological and kinematic major axis of the galaxy at PA = 94°. Contours show the best-fit disk model from KINEMETRY (Krajnović et al. 2006). The slight offset on the eastern branch comes from the irregular surface-brightness distribution of the ring. Black dots with error bars show the velocities derived by Bagchi et al. (2014) from longslit spectroscopy of Hα along the major axis of the stellar disk.