The present disclosure relates to an injection device for setting and injecting a dose of a medicament, the injection device comprising: - an elongated housing (10) extending along a longitudinal axis (z) and comprising a sidewall (48; 148; 248; 348), a dose tracker (50) having a portion arranged inside the housing (10), the dose tracker (50) comprises at least one tracking stop feature (51 ) and the dose tracker (50) is at least one of translationally or rotationally displaceable relative to the housing (10) during setting of a dose, wherein a positional state of the dose tracker (50) relative to the housing (10) is indicative of a size of the dose, and a preselector (70; 170; 270; 370) comprising a preselector stop feature (73; 173; 273; 373), wherein the tracking stop feature (51 ) and the preselector stop feature (73; 173; 273; 373) are configured to mutually engage and to block a displacement of the dose tracker (50) beyond a predefined maximum dose positional or rotational state, wherein the preselector (70; 170; 270; 370) is at least one of translationally or rotationally displaceable relative to the housing (10) along a displacement path (49; 149; 249; 349) between at least two preselection positional states and wherein the preselector (70; 170; 270; 370) is lockable to the housing (10) in any of the at least two preselection positional states.La présente invention concerne un dispositif d'injection pour le réglage et l'injection d'une dose d'un médicament, le dispositif d'injection comprenant : - un boîtier (10) allongé s'étendant le long d'un axe longitudinal (z) et comprenant une paroi latérale (48; 148; 248; 348), un suiveur de dose (50) ayant une partie disposée à l'intérieur du boîtier (10), le suiveur de dose (50) comprend au moins un élément d'arrêt de suivi (51 ) et le suiveur de dose (50) est au moins mobile en translation ou en rotation par rapport au boîtier (10) pendant le réglage d'une dose, un état de position du suiveur de dose (50) par rappo