I am not much of a bike rider. But I do have a penis according to these tools I work with. So, that being said, I would not normally think a person would wear a cup on their junk while bike riding. But, from here on out I might.

A 22-year-old Irish man, went out for a mountain bike ride and came back an erection that lasted for weeks! Reports vary on exactly how long he was had an erection. Some news pieces say seven weeks, some five weeks. Either way what a hard thing to go through. Or not.