Well, he's referring to indoor polo, which is a long-established women's only sport. It's 2-on-2 and usually played in clubs for artistic cycling. It's described briefly in the '2er Radpolo' paragraph of the German Wikipedia article on bike polo:
I also just saw, in a link I followed, that in Germany there's a 5-on-5 league (see page 5 if you read German). I didn't know that before. It sounds as if this variant isn't played very often:
Well, he's referring to indoor polo, which is a long-established women's only sport. It's 2-on-2 and usually played in clubs for artistic cycling. It's described briefly in the '2er Radpolo' paragraph of the German Wikipedia article on bike polo:
https://de.wikipedia.org/wiki/Radpolo
That sport is indeed sanctioned by officialdom.
I also just saw, in a link I followed, that in Germany there's a 5-on-5 league (see page 5 if you read German). I didn't know that before. It sounds as if this variant isn't played very often:
http://www.rad-net.de/html/verwaltung/reglements/best_radball-polo4_2011.pdf