I lift and move things for a living, and while I don't have the head and neck conditioning that guy has, I can totally see how he could do it. If he's a laborer that regularly caries heavy stuff on his head like that, and is verrry good at balancing (little pixels here and there show him doing the tiny balancing movements, and the way he initially situates it on his head) then this is doable, but still amazing. Even with the leg strength involved, one little balancing misstep would have let the bike fall off in any direction. That was the amazing part to me, the balancing we do to ride a bike is nothing compared to that guy's touch. And he is hiding a whole lot of muscle and especially legs under those clothes.