[nutcracker]

I'm not sure if it was posted before but check this out. http://www.motomag.com/spip/diaporama.php3?id_article=1321&id_document=14233

 

[Spike]

It's interesting technically, but I don't see the point. It still leans like a bike, and you still have to worry about traction on the front wheel(s). I suppose if one wheel starts to slide the other one may save you... If it can take suddenly having double the load in the middle of a turn.

Is there something in the voiceover that explains the purpose? I don't speak the language... Italian?