Broadening velocity of 25 star members of NGC 6067. The surface tangential velocity from the isochrone models is shown with an inclination angle i = 90^o (i = 0^o stars have a similar range in colour and negligible vbroad). The solid line represents the upper MS evolution and after (G_mag < 14 mag). The dotted lines represent the lower MS part of the isochrones (G_mag > 14 mag). The inset panel zooms into the cool-stars region.