A rail assembly for a dishwasher basket that may include a rail to be connected to a side wall of the dishwasher basket; at least one support roller for guiding a front portion of the rail; a pair of guide rollers for guiding a rear portion of the rail, the pair of guide rollers may include a lower guide roller located to engage a lower guide face of the rail, and an upper guide roller located to engage an upper guide face of the rail; a lever element on which at least one of the guide rollers is mounted and which is rotatable about an axis extending generally in parallel to the axis of rotation of the at least one guide roller; and may include a spring element for rotationally biasing the lever element to urge the at least one guide roller against the rail.