That is very different, it looks cool. I am guessing that there is a purpose in the styling, like maybe riding over obstacles in the mountains or something. I dont think it is ment to spend a lot of time in the seat.
You don't need a seat to climb walls due you normally are not seated in the bike, this is not a bike to ride fast on a road is just to offroad climbing and jumping, you have to be in a good phisical shape to drive it.
I'm in the cutting tools field and casings, http://www.canelatools.com
There is no seat. The rider is standing most of the time trying to keep balance and uses his weight, along with brake and throttle, to control the bike during the obstacle course run. Pretty amazing feats accomplished. Mountain bikers do the same thing on their trials, just no engine of course.
Trial Indoor world champion 2003 and 2004, 125cc enduro world champion 2003 and 3th place for 250cc, I don't think they are so bad. People sometimes saysuke:
That is sweet kazi. Do you ride? I have a gas gas trials bike, a 1995 250. We have great trials riding in the az desert, a world championship event was held here about 10 years ago.