Here's a first one for you guys: Cap Man. The article is in french and is mentionned as sourced from the most well known french radio... The video under it says it all.
http://info.sfr.fr/insolite/articles/il-pedale-a-fond-sur-son-velo-et-se-fait-flasher,147866/
If you've got others... All kinds of superheroes admitted ! But true ones. Capes and disguises are not an obligation.