A dart surfing movie sliding on a skateboard with a huge tire

In general skateboarding is called a small wheel beneath the board, but the dart surf seems to use the one with two huge tires on both ends of the board, so the speed of spinning by bicycle is appearing .

The movie is from the following.
First of all, like a mountain bike, dart surfing running along a road that is not paved. There is considerable speed.
YouTube - Dirtsurfer: I Need I Want I Will


And here is what is dirt surfing on Israeli highway. I do not know what to call "dart surfing" because it is a road, but it seems as though it is touring.
LiveLeak.com - Skating On Israels Highways.