Dreaming of your partner's daughter arriving on a motorbike could symbolize several things. Motorbikes often represent freedom, adventure, and a sense of independence. Her visit might suggest that you are feeling positive about your relationship with her and that you might appreciate her independent spirit.

The dream could also reflect your feelings about family dynamics and the blending of families. If you have a good relationship with her, this dream might signify camaraderie and openness. Alternatively, if there are underlying tensions or unresolved issues, the motorbike could represent a desire for communication or a need to navigate those dynamics more freely.

Consider the emotions you felt during the dream and any recent interactions with her. This can provide additional context for a more personalized interpretation.