Guide channel for sliding shoes of openable vehicle roofs or covers

A guide track (GT) has a straight GT area (47,48) and an arched GT area (49). A guide channel is wider near the arched GT area of the GT than near the straight GT area. Inserted into the flexible rubber guide shoe body, a support part with greater sturdiness and rigidity than the flexible rubber guide shoe body can be turned so as to be supported on a load-bearing bolt.