This would come under the heading of AST /FAST - as written about in:
http://www.dirt-bike-tips-and-pics.com/the-experimental-motorcycle-association.htmlThis is an aditional page on from 'the future of 2 strokes" one on Dirt Bike Tips & Tricks website.
All an interesting read, although the proposition of placing the swingarm pivot in front of the countershaft sprocket is a real blot on the posting - suspension action Would be horendous, I don't know what he is thinking.
Going for long swingarm is a great idea, but not the SA pivot / CS positioning that is proposed. Think of a concentric SA /CS pivot with an extra long swingarm (for positioning, see side on pics of the engine mount forward of the CS on a BMW450, this would give the long swingarm, central pivot location he seems to be proposing, and limit the engines effect on the suspension that CS can give- though not all like that), with the tilted engine he mentioned earlier. You'd get the pipe out of the way as well, thus reducing another problem a lot of people throw up at 2 strokes - easily damaged pipes.
There is a lot to come from 2ts, it's just whether or not a company will make a move.The one that does so, stands to really reap the rewards. With KTM faffing about, perhaps Yamaha, the Japanese MC maker that has shown it's tendency to innovate, may get a modern 2t out before them. I'm probably dreaming though.
