Not that I would want these, but they r pretty kool. Check the vids out

http://www.litefootatv.com/

These are from a company called Mattracks. They make the same type of setup for trucks and the company I work for has used them on powerline right of ways. They work very well on a truck, but if I recall, they are in the $10K+ range for a truck. If the quality/functionality of their truck products are any indication of the ones for the ATV, they should be a first class unit. I have a video of the truck version being used in all different terrain, and it's pretty amazing.

If only I could hit the lottery for a couple of $mil...

HHMMMMM----If I had $4400 to spend on a set of these, that means I would have TONS of cash, in which case I could buy a whole pile of quads and have one or two set up with these tracks all the time.

COOOOOOOOOOOOOOOOOOOLL ! ! ! ! ! ! ! ! ! !