Reliable sources indicate a fixed gear bike cameo by a former Girl rider whose one-time graphics depicted him in the dark. It may also be part of a larger family reunion and group video part. This could also explain why big Ben has been running laps every morning.
Also the boys have flipped it around and are experimenting with fluid mounts on bikes to film skating. A certain Hollywood type and Girl entrepreneur declared that bike mounted filming will be as revolutionary as Sturt's big wheels and short shorts.