Evolution of radial velocity dispersion, stellar surface density, epicyclic, and angular frequency in a stellar half-mass radius aperture. From left to right, the different galactic wind models (top figure) and BH physics models (bottom figure) are shown. The last column on the right corresponds to the original galaxy in TNG50. Thinner solid lines correspond to individual haloes. Vertical solid lines and shaded regions represent the median redshift and the distribution between 20^th and 80^th percentiles of the bar formation time. The three galaxy properties are highly affected by the SN feedback process, especially the radial velocity dispersion. The highest velocity dispersion is presented in the NW and WW models, causing the Toomre criterion to determine stable discs in contrast to the predictions of ELN and MMW criteria.