Here in Holland it is sold as a three speed, according to as far as i know schumacher, i thought it was likely they would make it a three speed. That's why i stated the three speed part.
That balldiff is something special! many balls and preformed rings. Looks like it uses large balls as well.
here it is, for the Dutchies among us.. A little translation help; They say that with the drieversnellingsbak (three speed transission) it is able to pop the 80 km/h
I read the article on the schumacher site too, it comes with a ONE speed.