An apron drafting system for a textile machine, in particular for a roving frame, a ring spinning machine or an air-spinning machine, having - a drivable first roller pair and a drivable second roller pair for drafting a fibre band, the first and second roller pairs being arranged at a distance from one another in the fibre band transport direction between a top and bottom roller of each roller pair for clamping transport of the fibre band, the first and second roller pairs being drivable at different rotational speeds in the operating condition of the apron drafting system to form a drafting zone located between the clamping lines of the first and second roller pairs, - a top apron cradle, which is arranged between the first and second roller pairs and, in the drafting zone, circumferentially guides a top apron having a top roller of the first roller pair looped around it circumferentially along the fibre band transport direction, - wherein the top apron cradle has an apron guide unit for circumferential guidance of the top apron looped around the top roller, with an apron guide section for guiding the top apron, wherein the apron guide section has an entrance section for receiving guidance of the top apron and a deflection section spaced from the entrance section for deflecting the guided top apron, - wherein the top apron cradle has a top roller bearing unit for mounting the top apron cradle and positioning the apron guide unit downstream of the top roller in the direction of rotation of the top apron, and - wherein the apron guide unit has a receptacle, assigned to the entrance section, for an replaceable tensioning element which can be brought into pressure contact with an inner side of the top apron, as well as the tensioning element, wherein the receptacle and the tensioning element, which is replaceably received in the receptacle, for guiding the top apron via the tensioning element and the deflection section are formed at a distance from the region of the apron guide section enclosed by the tensioning element and the deflection section, characterised in that the apron guide section has, at its end forming the deflecting section, a further receptacle which is configured for receiving an exchangeable deflecting element for deflecting the circumferentially guided top apron, as well as the deflecting element. - a drivable first roller pair and a drivable second roller pair for drafting a fibre band, the first and second roller pairs being arranged at a distance from one another in the fibre band transport direction between a top and bottom roller of each roller pair for clamping transport of the fibre band, the first and second roller pairs being drivable at different rotational speeds in the operating condition of the apron drafting system to form a drafting zone located between the clamping lines of the first and second roller pairs, - a top apron cradle, which is arranged between the first and second roller pairs and, in the drafting zone, circumferentially guides a top apron having a top roller of the first roller pair looped around it circumferentially along the fibre band transport direction, - wherein the top apron cradle has an apron guide unit for circumferential guidance of the top apron looped around the top roller, with an apron guide section for guiding the top apron, wherein the apron guide section has an entrance section for receiving guidance of the top apron and a deflection section spaced from the entrance section for deflecting the guided top apron, - wherein the top apron cradle has a top roller bearing unit for mounting the top apron cradle and positioning the apron guide unit downstream of the top roller in the direction of rotation of the top apron, and - wherein the apron guide unit has a receptacle, assigned to the entrance section, for an replaceable tensioning element which can be brought into pressure contact with an inner side of the top apron, as well as the tensioning element, wherein the receptacle and the tensioning element, which is replaceably received in the receptacle, for guiding the top apron via the tensioning element and the deflection section are formed at a distance from the region of the apron guide section enclosed by the tensioning element and the deflection section,