This is what happens when you take a regular motocross bike and replace the wheels with a snow track and ski.

It's called snow biking and these Red Bull athletes make it look easy while taking their bikes out for a spin slide in Idaho's back country.

While scouring the internet, there's not a lot of information on the sport, but I imagine the same places that are good for snowmobiling would also be good for snow biking.

And if you're interested in converting your motocross bike to a snow bike, you can check out one of these kits.