joris and amir bicycle cartwheel?

Joris and Amir are doing a bicycle trick that resembles a cartwheel. They are both biking on a standard BMX bicycle with a bright red frame. They both are exerting a great amount of effort to lift the bike's rear wheel off the ground, kicking their legs out as if in a cartwheel. They are wearing safety gear - helmet, knee and elbow pads, all in vibrant blue. The backdrop is a neatly paved neighborhood street with a row of suburban houses. The sky above is