A stairlift with an elongated rail includes a first side running surface and a second side running surface； and a carriage movable along the rail. The carriage having a first roller including a first roller friction surface which is in frictional engagement with the first side running surface for guiding the first roller； and a second roller including a second roller friction surface which is in frictional engagement with the second side running surface for guiding the second roller； and a first bridge. The first roller being rotatable around a first axis at a first end of the first bridge and the second roller is being rotatable around a second axis at a second end of the first bridge.
