They actually have a site at hereĆ where they sell DIY plans for this thingy (for a bit more than 30 bucks). They have two versions including "M" with proper wheels (instead of low-pressure inflatibles) and 7hp 4 strokeengine. I don't believe they manufacture them so I guess you can't buy a ready product. At least yet - they are looking for investor to start making 'em.
I have a 2 stroke 80cc engine kit installed on a old bike it runs super quick, its super light weight, easy to handle and fuel efficient, i'd recommend it to any one experienced in mechanics cause that thing is unreliable as hell