Upper panel: velocities versus colour. Open circles denote the present GC sample, crosses the objects of Goudfrooij et al. (2001b). In both panels, the systemic velocity is marked by the dotted vertical line. The bimodal colour distribution is clearly visible. We note that the objects belonging to the peak at C − R = 1.4 avoid velocities higher than the systemic velocity. Lower panel: velocities versus R-magnitude. The brightest clusters do not show a kinematic affinity to the bulge population. We also note also the increasing velocity dispersion for clusters fainter than R = 21.5.