A sley apparatus for a weaving machine which has a sley profile (1), a reed (2) and a drive (3), with the sley profile (1) carrying the reed (2) and being in active connection with the drive (3). The sley profile (1) has at least two separate parts, namely a main profile part (4) and an auxiliary profile part (5), with the auxiliary profile part (5) being releasably connected directly or indirectly to the main profile part (4).