A TREAD BLOCK ARRANGEMENT HAVING A SIPE

There is disclosed a tread block arrangement (200) suitable for a tire (100) or for a tread band (150) for a tire. The tread block arrangement (200) comprises a tread block (210) comprising at least a first sipe (420) delimited by a first sipe wall (425), a second sipe wall (426) and a bottom (427) of the sipe. The first sipe wall (425) and the second sipe wall (426) are arranged parallel to each other and define a width (w) of the sipe. At least the first sipe wall (425) has at least one inclined section in which a width of a surface of the first sipe wall (425) in a longitudinal direction of the sipe (420) and the width of the sipe (420) increases towards the bottom (427) of the sipe.