i just watched it now and they look awesome haha...might not be too hard to make one with an old pair of ski's and some ingenuity
i have one sitting up in the attic with the rest of the kids sleds. i have yet to take it to a ski slope - i've used it around my area. lugging it back up the hill almost kills all the fun of going down the hill. i have not seen any others in my area - so I'm quite the specticle when i do use it. the wife got it for me as a birthday gift - to proove I'm not to old. two years earlier i broke my wrist at the skate park proving i was not too old.
I rode something like this in Vail, CO. We were so drunk the group leader almost refused to let my friends and I use them. It's pretty fun, but almost impossible to use under control...haha
I would be willing to bet you could find one on ebay used. I would be willing to also say that the discription would say, only used once...... However, it does look cool.
yeah.. i can imagine learning to stop on that thing being the difficult part of riding one.. i dont think balance would be much of an issue.. seeing as its set up just like a mtb..
Joker you seen the KTrak? Similar type of bike but it pedals. https://www.youtube.com/watch?v=HP4VwaD7rd4